index.html
HOME
Low Tc papers (Berkeley)
Magnetotelluric papers
Chaos papers
MOSFET noise papers
Low Tc papers (IBM)
Electromigration and metal 1/f noise
Resonant tunneling papers
STM papers
1/f noise in magnetic systems
Small structure papers
High Tc papers (Non SQUID)
Neural network papers
High Tc SQUID papers
Vortex glass papers
Fluxgate papers
Magnetism papers
MOTTFET related papers
Quantum Noise in Josephson Junctions and SQUIDs
R. H. Koch, D. J. Van Harlingen, and J. Clarke
Proc. 6th International Conference on Noise in Physical Systems, Meijer, Mountain, and Soulen, ed., 359 (1981)
DC SQUID near the Quantum Noise Limit
D. J. Van Harlingen, R. H. Koch, and J. Clarke
Physica B+C 108, 1083 (1981)
Observation of Zero-Point Fluctuations in a Resistively Shunted Josephson Tunnel Junction
R. H. Koch, D. J. Van Harlingen, and J. Clarke
Phys. Rev. Lett. 47, 1216 (1981)
Observation of Quantum Noise Effects in a Resistively Shunted Josephson Junction
R. H. Koch, D. J. Van Harlingen, and J. Clarke
Physica B+C 109 and 110, 2055 (1982)
Measurements of Quantum Noise in Resistively Shunted Josephson Junctions
R. H. Koch, D. J. Van Harlingen, and J. Clarke
Phys. Rev. B26, 74 (1982)
Approach to the Quantum Noise Limit in the dc SQUID
D. J. Van Harlingen, R. H. Koch, and J. Clarke
Appl. Phys. Lett. 41, 197 (1982)
Flicker (1/f) Noise in Tunnel Junction dc SQUIDs
R. H. Koch, J. Clarke, W. M. Goubau, J. Martinis, C. W. Pegrum, and D. J. Van Harlingen
J. Low Temp. Phys. 51, 207 (1983)
Investigation of 1/f Noise in Tunnel Junction dc SQUIDs
R. H. Koch, J. Clarke, W. M. Goubau, J. Martinis, C. W. Pegrum, and D. J. Van Harlingen
I.E.E.E Trans Mag. MAG-19, 449 (1983)
Remote-Reference Magnetotellurics: Equipment and Procedure
J. Clarke, T. D. Gamble, W. M. Goubau, R. H. Koch, and R. F. Miracky
Geophysical Prospecting, 31, 149 (1983)
Noise Correlation Lengths in Remote Reference Magnetotellurics
W. M. Goubau, T. Maxton, R. H. Koch, and J. Clarke
Geophysics, 49, 433 (1984)
Chaotic Noise Observed in a Resistively Shunted Self-Resonant Josephson Tunnel Junction
R. F. Miracky, J. Clarke, and R. H. Koch
Phys. Rev. Lett. 50, 856 (1983)
Noise in Inversion Layers near the Metal-Insulator Transition
C. J. Adkins and R. H. Koch
J. Phys. C: Solid State Physics 15, 1829 (1982)
1/f Noise in Josephson Junctions - Measurements and Proposed Model
R. H. Koch
Proc. 7th International Conference on Noise in Physical Systems, Savelli, Lecoy, and Nougier, ed., 377 (1983)
1/f Noise in Josephson Junctions - Evidence for an Electron Trapping Model
R. H. Koch
IBM Research Report- RC 10255 (1984).
Low Frequency Noise in Low 1/f Noise DC SQUIDs
V. Foglietti, W. J. Gallagher, M. B. Ketchen, A. W. Kleinsasser, R. H. Koch, S. I. Raider, and R. L. Sandstrom
Appl. Phys. Lett. 49, 1393 (1986).
A Novel Modulation Technique for 1/f Noise Reduction in DC SQUIDS,
V. Foglietti, W. J. Gallagher, and R. H. Koch
IEEE Trans. Magn., MAG-23, 1150, (1986).
Magnetic Hysteresis in Integrated Low-Tc SQUID Gradiometers
R. H. Koch, D. R. Gambrel, T. H. Field, M. B. Ketchen, W. J. Gallagher, R. L. Sandstrom, A. W. Kleinsasser and H. Matz
Applied Physics Letters 58 (1991) 1786.
1/f Noise Electromigration Test J. Cronin, J, Ryan, K. Holland, and R. H. Koch Proceedings of IBM Internal Conference on Electromigration Poughkeepsie, NY (1983)
1/f Noise and Grain Boundary Diffusion in Aluminum and Aluminum Alloys
R. H. Koch, J. R. Lloyd, and J. Cronin
Phys. Rev. Lett, 55, 2487 (1985).
Resistivity-Noise Measurements in Thin Gold Films Near the Percolation Threshold
R. H. Koch, R. B. Laibowitz, E. I. Alessandrini, and J. M. Viggiano
Phys. Rev., Rapid Comm. 32, 6932 (1985).
Conductance Noise Measurements in Disordered Gold Films: Effects of Quantum Fluctuations at Room Temperature.
R. H. Koch, S. Feng, R. B. Laibowitz, J. A. Lacey, and J. M. Viggiano
IBM Research Report
Correlation Between 1/f Noise and Grain Boundaries in Thin Gold Films
A. H. Verbruggen, R. H. Koch, and C. P. Umbach
Phys. Rev. Rapid Comm. 35, 5864 (1987).
Effect of Hydrogen on Electromigration and 1/f Noise in Gold Films
K. P. Robdell, P. J. Ficalora, and R. H. Koch
Appl. Phys. Lett, 50, 1415 (1987).
Electromigration-Induced Resistance Change in Al Thin Film Conductors
J. R. Lloyd and R. H. Koch
Published in IEEE 1987 IRPS Conference Proceedings.
Study of Electromigration-Induced Resistance and Resistance Decay in Al Thin Film Conductors
J. R. Lloyd and R. H. Koch
Appl. Phys. Lett., 52, 194 (1988).
A Novel Method for Measuring Resistance Fluctuations Independent of Background Noise
A. H. Verbruggen, H. Stoll, K. Heeck, and R. H. Koch
Appl. Phys. A 48 233, (1989).
Electromigration Induced Resistance Increases at Near Use Conditions
J. R. Lloyd and R. H. Koch
paper submitted in IEEE 1988 IRPS Conference Proceedings.
Use of a two frequency AC bridge to measure 1/f noise in copper films
K. P. Rodbell and R. H. Koch
Physical Review B44 (1991) 1767.
Electromigration induced vacancy behavior in unpassivated thin films
J. R. Lloyd and R. H. Koch
Journal of Applied Physics, 71 (1992) 3231.
Relationship between low-frequency noise and resistance drift in metal films
R. H. Koch
Physical Review B, 48 (1993) 12 217.
Evidence for Resonant Tunneling of Electrons through Sodium Atoms in Silicon Dioxide
R. H. Koch and A. M. Hartstein
Phys. Rev. Lett. 54, 1848 (1985)
Resonant Tunneling via Localized States in Thin MOS Structures
A. M. Hartstein and R. H. Koch
Surface Science 170, 391 (1986).
Density of States in Silicon Inversion Layers in High Magnetic Field from Resonant Tunneling Measurements
A. M. Hartstein and R. H. Koch
Proceedings of the 18'th International Conference on the Physics of Semiconductors, Stockholm Sweden September 1986.
Magnetic Field Dependence of Resonant Tunneling in Thin MOS Structures
A. M. Hartstein and R. H. Koch
Phys. Rev B35, 6442 (1987), Brief Reports.
Spatial Location of Electron Trapping Defects on Silicon by Scanning Tunnelling Microscopy
M. E. Welland and R. H. Koch
Appl. Phys. Lett, 48, 724, (1986).
Characterization of Electron Trapping Defects on Silicon By Scanning Tunneling Microscopy
R. H. Koch and R. J. Hamers
Surface Science. 181, 333 (1987).
Observation of Single Electron Trapping using Scanning Tunneling Microscopy
R. H. Koch and R. J. Hamers
Published in IEEE 1987 IEDM Conference Proceedings, Washington DC.
The Vacuum Tunneling Probe: A Nonreciprocal, Reduced Back Action Transducer
M. F. Bocko, K. A. Stephenson, and R. H. Koch
Phys. Rev. Lett., 61, 726, (1988).
Scanning Tunneling Microscopy and Spectroscopy of Silicon Dangling Bond Defects
R. J. Hamers and R. H. Koch
article in Physics and Chemistry of SiO2 and the Si/SiO2 Interface ed. C. R. Helms, Plenum Press, (1988).
Extremely Low-noise Potentiometry with an STM
J. P. Pelz and R. H. Koch
Review of Scientific Instruments, 60, 301, (1989).
Tip-Related Artifacts in Scanning Tunneling Potentiometry
J. P. Pelz and R. H. Koch
Physical Review, Rapid Communications, 41, (1990) 1212.
Successive Oxidation Stages of Adatoms on the Si(111) 7x7 Surface Observed with Scanning Tunneling Microscopy and Spectroscopy,
J.P. Pelz and R. H. Koch
Springer Series in Surface Sciences, Vol. 24, The Structure of Surfaces III
Successive oxidation stages of adatoms on the Si(111)7x7 surface observed with scanning tunneling microscopy and spectroscopy
J. P. Pelz and R. H. Koch
Physical Review, Rapid Communications, 42 (1990) 3761.
A Reduced Noise Nonreciprocal Transducer Based Upon Vacuum Tunneling
K. A. Stephenson, M. F. Bocko, and R. H. Koch
accepted by the Journal of Applied Physics.
Successive Oxidation Stages and Annealing Behavior of the Si(111) Surface Observed with STM and STS
J. P. Pelz and R. H. Koch
Journal of Vacuum Science and Technology, March/April 1991.
Magnetic Equilibrium Noise in Spin-Glasses: EuSrS
W. Reim, R. H. Koch, A. P. Malozemoff, M. B. Ketchen, and H. Maletta
Phys. Rev.Lett. 57, 905, (1986).
Temperature Dependence of the Magnetic Noise in EuSrS
R. H. Koch, W. Reim, A. P. Malozemoff, and M. B. Ketchen
accepted for publication in Journal of Applied Physics (proceedings of the MMM conference, Baltimore, Maryland, Nov 1986).
Observation of h/2 Aharonov-Bohm Interference Effects in Submicron Diameter Normal Metal Rings
C. P. Umbach, S. Washburn, R. A. Webb, R. H. Koch, M. Bucci, A. N. Broers, and R. B. Laibowitz
J. Vac. Sci. and Technol., B4, 383 (1986).
Nanolithography with an Acid Catalyzed Resist
C.P. Umbach, A.N. Broers, C.G. Willson,R. H. Koch and R.B. Laibowitz
J. Vac. Sci. Tech., B6, 319 (1988).
Nanolithography with a High Resolution STEM
C.P. Umbach, A.N. Broers, R. H. Koch, C.G. Willson, and R.B. Laibowitz
IBM J. Res. Dev., 32, 454 (1988).
Nanolithography at 350 KV in a TEM
A. N. Broers, A. E. Timbs, and R. H. Koch
Microelectronics Engineering, 9, 187 (1989)
Lateral Tunnelling, Ballistic Transport, and Spectroscopy in a Two-Dimensional Electron Gas
A. Palevski, M. Heilblum, C. P. Umbach, C. M. Knoedler, A. N. Broers, and R. H. Koch
Physical Review Letters, 62, 1776, (1989).
Nanolithography at 350 KV in a TEM
A. N. Broers, A. E. Timbs, and R. H. Koch
Microelectronic Engineering, 9, 187 (1989)
Some Effects of Electron Scattering and of Resist Molecular Weight on the Resolution of Electron Beam Lithography
A.N. Broers, C.G. Willson, C.P. Umbach, R. H. Koch, and R.B. Laibowitz
J. Vac. Sci. Tech.
Thin Superconducting Oxide Films
R. B. Laibowitz, R. H. Koch, P. Chaudhari, and R. J. Gambino
Phys. Rev. B. 35, 8821 (1987).
Fabrication and Properties of Thin Superconducting Oxide Films,
R. B. Laibowitz, R. H. Koch, P. Chaudhari, and R. J. Gambino,
(Proceedings of the Yamada International Conference on Superconductivity).
Effects of Radiation Damage in Ion-Implanted Thin Films of Metal-Oxide Superconductors
G. J. Clark, A. D. Marwich, R. H. Koch, and R. B. Laibowitz
Applied Physics Letters 51, 139 (1987).
Ion Beam Amorphization of YBa2Cu3Oy
G. J. Clark, F. K. LeGoues, A. D. Marwick, R. B. Laibowitz, and R. H. Koch
Appl. Phys. Lett. 51, 1462 (1987).
Radiation Effects in Thin Films of High Tc Superconductors
G. J. Clark, A. D. Marwick, F. LeGoues, R. B. Laibowitz, R. H. Koch, and P. Madakson
accepted for publication in Nuclear Instruments and Methods. (1987).
Ion Induced Damage Mechanisms in Thin Films of YBa2Cu3Oy
G. J. Clark, F. K. LeGoues, A. D. Marwick, R. B. Laibowitz, and R. H. Koch
High Temperature Superconductors, ed. M. B. Brodsky et.al. Materials Research Society Publication, p 127, 1987
Critical Current Measurements in Epitaxial Films of YBa2Cu3Oy Compound
P. Chaudhari, R. H. Koch, R. B. Laibowitz, T. R. McGuire, and R. J. Gambino
Phys. Rev. Lett., 58, 2684 (1987).
Properties of Epitaxial Films of YBa2Cu3Oy
Chaudhari, R. J. Collins, P. Freitas, R. Gambino, J. Kirtley, R. Koch. R. Laibowitz, F. Legoues, T. McGuire, T. Penney, A. Schlesinger, and A. Segmuller and S. Foner and E. J. McNiff
Phys. Rev., B36 8903 (1987).
Comparative study of Superconducting Energy Gaps in Oriented Films and Polycrystalline Bulk Samples of Y-Ba-Cu-O
R. T. Collins, Z. Schlesinger, R. H. Koch, R. B. Laibowitz, T. S. Plaskett, P. Freitas. W. J. Gallagher, R. L. Sandstrom, and T. R. Dinger
Phys. Rev. Lett. 59, 704 (1987).
Magnetron Sputtering and Laser Patterning of High Tc Copper Oxide Films
M. R. Scheuermann, C. C. Chi, C. C. Tsuei, D. S. Yee, J. J. Cuomo, R. B. Laibowitz, R. H. Koch, B. E. Braren, R. Srinivasan, and M. M. Plechty
Appl. Phys. Lett., 51, 1951, 1987.
Improving Thin-film Techniques
R. H. Koch and P. Chaudhari
Nature, 37, 587 (1988).
Reliable Single Target Sputtering Process for High Temperature Superconducting Films and Devices
R. L Sandstrom, W. J. Gallagher, T. R. Dinger, R. H. Koch, R. B. Laibowitz, A. W. Kleinsasser, R. J. Gambino,, B. Bumble, and M. F. Chisholm
Appl. Phys. Lett., 53, 444 (1988).
Studies of Superconductors using a Low-temperature, High-field Scanning Tunneling Microscope
J. R. Kirtley, R. M. Feenstra, A. P. Fein, S. I. Raider, W. J. Gallagher, R. Sandstrom, T. Dinger, M. W. Shafer, R. H. Koch, R. B. Laibowitz, and B. Bumble
J. of Vac. Sci. and Tech. 6 259, 1988.
Micropatterning of high-Tc films with an excimer laser
J. Mannhart, M. Scheuermann, C. C. Tsuei, M. M. Oprysko C. C. Chi, C. P. Umbach, R. H. Koch, C. Miller
Appl. Phys. Lett. 52, 1271, (1988).
THz Response of Hybrid Tc Transmission Lines
D. Grischkowsky, R. Sprik, M. B. Ketchen, C. C. Chi, I.N. Duling III, P. Chaudhari, R. H. Koch, and R. B. Laibowitz
Conf. on Lasers and Electro-Optics Tecn. Digest Series 1988, 7, (Optical Society of America, Washington, DC 1988), pp 386-387.
Radiation effects in thin films of high Tc Superconductors
G.J. Clark, A.D. Marwick, F. LeGoues, R.B. Laibowitz and R. Koch,
Nucl. Instr. Methods, B32, 405 (1988).
In-situ Resistance of YBa2Cu3Ox Films During Anneal
A. Davidson, A. Palevski, M. J. Brady, R. B. Laibowitz, R. H. Koch M. Scheuermann, and C. C. Chi
Appl. Phys. Lett. 52, 157 (1988).
High Tc Superconducting Thin Films and Applications
R. B. Laibowitz, R. H. Koch, P. Chaudhari, G. J. Clark, R. J. Gambino, M. M. Plechaty, J. A. Lacey, C. P. Umbach, A. D. Marwick, and J. M. Viggiano
Proc. Symp. on Low Temp. Electronics and High Temp. Superconductors, The Electrochemical Society, 88-9, 318 (1988).
Diffusion of Ni and Cu Radiotracer in YBCO High-Tc Superconducting Oxide
D. Gupta, R. B. Laibowitz and R. H. Koch
IBM Research Report RA 195
Hole Concentrations, Hall Number and Tc Relationships in Substituted YBCO
M. W. Shafer, T. Penney, B. L. Olson, R. L. Greene, and R. H. Koch
Physical Review, Rapid Communications, 39, 2914 (1989).
Magnetic Properties and Critical Currents in Epitaxial YBCO Films
T. R. McGuire, P. Chaudhari, D. Dimos, R. H. Koch, R. Laibowitz, and J. Mannhart
Proceedings INTERMAG conference, March 28-31, 1989, Washington D.C.
Magnetic Properties and Critical Currents of Epitaxial YBaCuO Films
T. R. McGuire, D. Dimos, R. H. Koch, R. B. Laibowitz, and J. Manhart
IEEE Trans. MAG 25, 3218 (1989).
A Self-Learning Threshold-Controlled Neural Network
A. Hartstein and R.H. Koch
IEEE Int. Conf. on Neural Networks, SOS Printing, San Diego p.I-425, (1988).
A Self-Learning Neural Network
A. Hartstein and R. H. Koch
Neural Networks 2, 395 (1989).
Quantum Interference Devices (SQUIDs) Made From Superconducting Oxide Thin Films
R. H. Koch, C. P. Umbach, G. J. Clark, P. Chaudhari, and R. B. Laibowitz
Applied Physics Letters 51, 200 (1987).
Thin Films and SQUIDS Made From YBa2Cu3Oy
R. H. Koch, R. B. Laibowitz, P. Chaudhari, R. J. Gambino, G. J. Clark, A. D. Marwick, and C. P. Umbach
published in High Temperature Superconductors ed. D. V. Gubser and M. Schulter, Material Research Society Publication, Vo. EA11, page 81, 1987.
The Impact of High-Temperature Superconductivity on SQUID Magnetometers
J. Clarke and R. H. Koch
Science 242, 217 (1988).
DC SQUIDs Made from YBCO
R. H. Koch, C. P. Umbach, M. M. Oprysko, J. D. Mannhart, B. Bumble, G. J. Clark, W. J. Gallagher, A. Gupta, A. Kleinsasser, R. B. Laibowitz, R. B. Sandstrom, and M. R. Scheuermann
Physica C153-155, 1685 (1988).
Magnetic Properties of High Temperature Superconductors- Implications for 1/f Noise in SQUIDs
R. H. Koch and A. P. Malozemoff
Proceedings of the First International Symposium on Superconductivity ISS'88 (1988).
Liquid Nitrogen Temperature DC SQUIDs using Single Target Sputtered Films
W. J. Gallagher, R. H. Koch, R. L. Sandstrom, R. B. Laibowitz, A. W. Kleinsasser, B. Bumble, and M. F. Chisholm
Proceedings of the First International Symposium on Superconductivity ISS'88 (1988).
Films and Electronic Devices fabricated from High Tc Superconductors.
R. B. Laibowitz, R. H. Koch, R. L Sandstrom, W. J. Gallagher
Proc. 38th Electronic Components Conf., IEEE, 144 (1988).
Low Noise Thin Film TlBaCaCuO DC SQUIDs Operated at 77K
R. H. Koch, W. J. Gallagher, B. Bumble, W. Lee, V. Lee, and J. Salem
Applied Physics Letters, 54, 951 (1989).
Noise and Hysteresis in Flux-locked TlBaCaCuO SQUIDs
V. Foglietti, R. H. Koch, W. J. Gallagher, B. Oh, and B. Bumble
Applied Physics Letters, 54, 2259, (1989).
Performance of dc SQUIDs with Resistively Shunted Inductance
V. Foglietti, W. J. Gallagher, M. B. Ketchen, A. W. Kleinsasser, R. H. Koch, and R. L. Sandstrom
Applied Physics Letters, 55, 1451, (1989).
A Study of Advanced Gradiometer Design and Development
R. H. Koch
Prepared under contract for the NAVY, unpublished, 67 pages (1989).
Present Status and Future of dc SQUIDs Made from High Tc Superconductors
R. H. Koch, W. J. Gallagher, V. Foglietti, B. Oh, R. B. Laibowitz G. Koren, A. Gupta, and W. Y. Lee
in Advances in Biomagnetism, S. Williamson, ed, Plenum Press, New York, 1989.
Liquid Nitrogen Temperature DC SQUID's Using Single-Target-Sputtered Films
W.J. Gallagher, R.H. Koch, R.L. Sandstrom, R.B. Laibowitz, A.W. Kleinsasser, B. Bumble, and M.F. Chisholm
in Advances is Superconductivity, Proceedings of the First International Symposium on Superconductivity (ISS'88), August 28-31, 1988, Nagoya, Japan (Springer-Verlag, Tokyo, 1989), pp. 679-683.
Fabrication and 77 K Operation of Low Noise Thin Film TlBaCaCuO dc SQUIDs
W.J. Gallagher, R.H. Koch, V. Foglietti, B. Oh, and W.Y. Lee
Extended Abstracts of the 1989 International Superconducting Electronics Conference ISEC '89 (Japan Society of Appl. Phys.), pp. 477-481 (1989).
SQUIDs Made from High Temperature Superconductors
R. H. Koch
Solid State Technology, May 1990.
All High Tc Edge Junctions and SQUIDs
R. B. Laibowitz, R. H. Koch, A. Gupta, G. Koren, W. J. Gallagher, V. Foglietti, B. Oh, and J. Viggiano
Applied Physics Letters, 56, (1990) 686.
YBaCuO Input Coils with Low-Tc and High-Tc SQUIDs
B. Oh, R. H. Koch, W. J. Gallagher, V. Foglietti, G. Koren, A. Gupta, and W.Y. Lee
Applied Physics Letters, 56, (1990) 2575.
Edge Junction SQUIDs and Multilayers using High Tc Superconductors
R. B. Laibowitz, R. H. Koch, A. Gupta, W. J. Gallagher, B. Oh, and J. Viggiano
Journal of Less-Common Metals, 164 & 165 (1990) 1523.
Fabrication and Application of High Current Density High Tc Superconducting Thin Films and Devices
R. B. Laibowitz, R. H. Koch, A. Gupta, W. J. Gallagher, B. Oh, and J. Viggiano
to be published in the proceedings of The Materials Society.
Operation of thin film dc SQUIDs made of high-Tc superconductors
V. Foglietti, R. H. Koch, W. J. Gallagher, R. B. Laibowitz, and B. Oh
Proceedings of the NATO School on Superconducting Electronics, Capri, September, 1990, published in "Nonlinear Superconductive Electronics and Josephson Devices," edited by N.F. Pedersen and A. Davidson, Plenum Press, New York (1991).
High-Tc Multilayers, Edge Junctions and SQUIDs
R. B. Laibowitz, R. H. Koch, W. J. Gallagher, R. P. Robertazzi, B. Oh and J. M. Viggiano
Proc. Int. Conf. on Future Electronic Devices, 1991.
High-Tc Multilayers and Device Applications
R. B. Laibowitz, W. J. Gallagher, R. H. Koch, B. Oh, H. K. Olsson R. P. Robertizzi, and J. M. Viggiano
"High Temperature Superconducting Compounds III" ed S. Whang, A. DasGupta, and E. Collins, TMS Warrendale, PA (1991) p 163
Wet etch process for patterning insulators suitable for epitaxial high-Tc superconducting thin film multilevel electronic circuits
W. Eidelloth, W.J. Gallagher, R.P. Robertazzi, R.H. Koch, B. Oh, and R.L. Sandstrom,
Appl. Phys. Lett. 59 (1991) 1257.
Multi-level YBCO flux transformers with high-Tc SQUIDs: a prototype high-Tc SQUID magnetometer working at 77 K.
B. Oh, R. H. Koch, W. J. Gallagher, R. P. Robertazzi, and W. Eidelloth
Appl. Phys. Lett. 59 (1991) 123
YBCO Thin Film Gradiometers, Fabrication and Performance
W. Eidelloth, B.Oh, W.J. Gallagher, R.P. Robertazzi, and R. H. Koch
Applied Physics Letters 59 (1991) 3473.
SQUIDs, the Josephson Effects, and Superconducting Electronics
R. H. Koch
Book review , Science, Vol 254 (1991) p 1052.
YBCO Thin Film Flux Transformers Made by Wet Etching,
W. Eidelloth, B.Oh, R. Koch, W.J. Gallagher, and R.P. Robertazzi,
Springer Proceedings in Physics, 64 (1992) 168.
In situ AgYBaCuO contacts for superconductor normal metal metal superconductor devices
R. P. Robertazzi, A. W. Kleinsasser, R. B. Laibowitz, R. H. Koch, and K. G. Stawiasz
Phys. Rev. B46, (1992) 8456.
Low 1/f noise in YBCO DC SQUIDs on (Y)ZrO bicrystal substrates
H. K. Olsson, P. A. Nilsson, Z. Ivanov, R. H. Koch, E. A. Stepantsov, and A. Ya. Txalenchuk
Applied Physics Letters, 61 (1992) 861.
YBCO/MgO/YBCO edge Josephson Junctions
R. P. Robertazzi, R. H. Koch, R. B. Laibowitz, W. J. Gallagher
Applied Physics Letters 61 (1992) 711.
Identifying the source of 1/f noise in SQUIDs made from high temperature superconductors
R. H. Koch, W Eidelloth, B. Oh, R. P. Robertazzi, S. A. Andrek, and W. J. Gallagher
Applied Physics Letters, 60 (1992) 507.
Magnetic hysteresis in thin film SQUID magnetometers
J. Z. Sun, W. J. Gallagher, and R. H. Koch
Applied Physics Letters, 61 (1992) 3190.
Tunnelling in all-high Tc edge junctions with deposited barriers
R. B. Laibowitz, R. P. Robertazzi, R. H. Koch, A. W. Kleinsasser, J. R. Kirtley, J. M. Viggiano, R. L. Sandstrom, and W. J. Gallagher
Physical Review B, 46 (1992) 14830.
Non-linear Hysteresis in Thin Film SQUID Magnetometers,
J. Z. Sun, W. J. Gallagher and R. H. Koch,
IEEE Trans. Appl. Supercond. 3, 2022 (1993).
Improved Process for High-Tc Superconducting Step-Edge Junctions
J. Z. Sun, W. J. Gallagher, A. C. Callegari, V. Foglietti and R. H. Koch
Appl. Phys. Lett. 63, (1993) 1561.
Improved Magnetic Hysteresis in Thin Film High-Tc SQUIDs
J. Z. Sun, W. J. Gallagher, and R. H. Koch
ISEC'93, (1993) 152.
High-Tc Three-SQUID Gradiometer
R. H. Koch, V. Foglietti, J. R. Rozen, J. Z. Sun, R. L. Sandstrom and W. J. Gallagher,
ISEC'93, (1993) 166.
A Three SQUID Gradiometer
R. H. Koch, J. R. Rozen, J. Z. Sun, and W. J. Gallagher
Applied Physics Letters, 63 (1993) 403.
Performance of flux locked series SQUID array
V. Foglietti, K. G. Stawiasz, M. B. Ketchen, and R. H. Koch
IEEE Trans. Appl. Supercond. 3 (1993) 3061.
The effect of radio frequency radiation on the dc SQUID
R. H. Koch, V. Foglietti, J. R. Rozen, K. G. Stawiasz, M. B. Ketchen, J. Z. Sun, W. J. Gallager, and D. Lathrop
Appl. Phys. Lett. 65 (1994) 100.
High-Tc Multilevel edge Junctions with SrTiO3 barriers operating at 77 K
R. B. Laibowitz, J. Z. Sun, V. Foglietti, W. J. Gallagher, and R. H. Koch,
Appl. Phys. Lett. 64 (1994) 247.
Initial vortex entry related magnetic hysteresis in thin film SQUID magnetometers
Sun, J.Z. Gallagher, W.J. Koch, R.H.
Phys. Rev. B, Condens. Matter (USA) Vol.50, No.18 1 Nov. 1994 P13664-73.
Properties of YBaCuO thin film single-level dc SQUIDs fabricated using step-edge junctions
J. Z. Sun, L. S. Yu-Jahnes, V. Foglietti, R. H. Koch, and W. J. Gallagher
IEEE Trans. Appl. Supercond. 5 2107 (1994).
The Flux Dam, a method to reduce extra low frequency noise when a superconducting magnetometer is exposed to a magnetic field
R. H. Koch, J. Z. Sun, V. Foglietti, and W. J. Gallagher
Appl. Phys. Lett 67, 709 (1995)
Characterizing, modeling, and optimizing high Tc superconducting quantum interference devices
Foglietti, V. Koch, R.H. Sun, J.Z. Laibowitz, R.B. and Gallagher, W.J.
J. Appl. Phys. (USA) Vol.77, No.1 Jan. 1995 P378-81
Properties of multilevel ramp edge junctions and SQUIDs with laser ablated SrTiO/sub 3/ barriers
Laibowitz, R.B. Sun, J.Z. Foglietti, V. Koch, R.H. Altman, R.A. Gallagher, W.J.
IEEE Trans. Appl. Supercon. (USA) Vol.5, No.2, pt.3 June 1995 P2620-3
Direct coupled high T/sub c/ thin film SQUIDs using step edge weak link junctions
Sun, J.Z. Gallagher, W.J. Koch, R.H.
Appl. Supercon. (UK) Vol.3, No.7-10 July Oct. 1995 P425-41
High performance superconducting quantum interference device feedback electronics
Koch, R.H. Rozen, J.R. Woltgens, P. Picunko, T. Goss, W.J. Gambrel, D. Lathrop, D. Wiegert, R. Overway, D.
Rev. Sci. Instrum. (USA) Vol.67, No.8 Aug. 1996 P2968-76
Magnetic field induced noise in directly coupled high Tc superconducting quantum interference device magnetometers
Milliken, F.P. Brown, S.L. Koch, R.H.
Appl. Phys. Lett. (USA) Vol.71, No.13 29 Sept. 1997 P1857-9
Nuclear magnetic resonance using a high temperature superconducting quantum interference device
Kumar, S. Matthews, R. Haupt, S.G. Lathrop, D.K. Takigawa, M Rozen, J.R. Brown, S.L. Koch, R.H.
Appl. Phys. Lett. (USA) Vol.70, No.8 24 Feb. 1997 P1037-9
The response of high T/sub c/ SQUID magnetometers to small changes in temperature
F.P. Milliken, R.H. Koch, S.L. Brown, R.A. Altman, W.J. Gallagher, S.G. Haupt, and D.K. Lathrop
J. Appl. Phys. (USA) Vol.82, No.12 15 Dec. 1997 P6301-5
Materials issues related to the fabrication of HTS SQUIDs
Haupt, S.G. Lathrop, D.K. Matthews, R. Brown, S.L. Altman, R. Gallagher, W.J. Milliken, F. Sun, J.Z. Koch, R.H.
IEEE Trans. Appl. Supercond. (USA) Vol.7, No.2, pt.3 June 1997 P2319-22
Wideband front end for high frequency SQUID electronics
Penny, R.D. Lathrop, D.K. Thorson, B.D. Whitecotton, B.R. Koch, R.H. Rozen, J.R.
IEEE Trans. Appl. Supercond. (USA) Vol.7, No.2, pt.3 June 1997 P2323-6
Advances in sensor development and demonstration of superconducting gradiometers for mobile operation
Clem, T.R. Froelich, M.C. Ovenvay, D.J. Purpura, J.W. Wiegert, R.F. Koch, R.H. Lathrop, D.K. Rozen, J. Eraker, J.H. Schmidt, J.M.
IEEE Trans. Appl. Supercond. (USA) Vol.7, No.2, pt.3 June 1997 P3287-93
Maximum theoretical bandwidth and slewrate of a dc SQUID feedback system
R.H. Koch
IEEE Trans. Appl. Supercond. (USA) Vol.7, No.2, pt.3 June 1997 P3259-62
Sensitive high-Tc SQUID magnetometers for unshielded operation
DiIorio M.S, Yang K.-Y, Yoshizumi S, Haupt S.G, Haran D, Koch R.H., Milliken, F.P. Rozen J.R, Lathrop D.K, Kumar S. Trammell H.S.
IEEE Transactions on Applied Superconductivity v 9 n 2 III 1999. p 4428-4431
Experimental Evidence for Vortex-Glass Superconductivity in YBCO
R. H. Koch, V. Foglietti, W. J. Gallagher, G. Koren, A. Gupta, and M. P. A. Fisher
Physical Review Letters, 63, 1511, (1989).
Response to a Comment on "Experimental Evidence for Vortex-Glass Superconductivity in YBaCuO.
R. H. Koch, V. Foglietti, and M. P. A. Fisher
Physical Review Letters, 64, (1990) 2586.
Observation of a peak below Tc in the rf-conductivity of YBCO
H. K. Olsson and R. H. Koch
Proc. 3rd Int. Conf. Materials and Mechanisms of Superconductivity -- High-Temperature Superconductors}, Kanazawa, 1991, to be published in Physica C, 1991.
High power, pulsed microwave measurements of critical currents in thin films of YBCO.
N. S. Shiren, R. B. Laibowitz, R. H. Koch, and T. G. Kazyaka
Physical Review B43 (1991) 10478.
Observation of Critical Scaling Behavior in the ac Impedance at the Onset of Superconductivity in a Large Magnetic Field
H. K Olsson, R. H. Koch, W. Eidelloth, and .R. P. Robertazzi
Phys. Rev. Lett. 66 (1991) 2661.
New Phase Transitions in Layered Superconductors
R. H. Koch
Published in Advances in Physics, 1991.
Observation of a peak below Tc in the RF conductivity of YBCO
H. K. Olsson and R. H. Koch
Physica C185-189 (1991) 1847.
Dimensionality crossover of the superconducting normal transition in YBCO thin films both at high magnetic fields and at zero field
C. Dekker, R. H. Koch, B. Oh, and A. Gupta
Physica C185-189 (1991) 1799.
Scaling behavior at the vortex glass transition
H. K. Olsson, R. H. Koch, W. Eidelloth, and R. P. Robertazzi
Physica C185-189 (1991) 1815.
AC impedance at the superconducting vortex glass transition
H. K. Olsson, R. H. Koch, W. Eidelloth, and R. P. Robertazzi
Journal of Applied Physics 70 (1991) 6194.
Measurement of the exponent mu in the low temperature phase of YBCO films in a magnetic field: direct evidence for a vortex glass phase
C. Dekker, W. Eidelloth, and R. H. Koch
Physical Review Letters 68 (1992) 3347.
Observation of the conductivity coherence peak in superconducting BiSrCaCuO crystals
H. K. Olsson and R. H. Koch
Physical Review Letters, 68 (1992) 2407 (comment).
Studies of Vortex Movement into Polycrystalline YBCO Loops
B. Oh, R.H. Koch, and W.J. Gallagher,
Physical Review B46 (1992) 9169.
Absence of a finite-temperature vortex-glass phase transition in two-dimensional YBCO films
C. Dekker, P. J. M. Woltgens, R. H. Koch, B. W. Hussey, and A. Gupta
Physical Review Letters, to be published in September 1992.
Vortex-glass scaling in ultra-thin YBCO films: The two-dimensional limit
C. Dekker, P. J. M. Woltgens, R. H. Koch, B. W. Hussey, and A. Gupta
Proceedings of LT-23.
Phase transition in YBCO crystals (Melissa may have changed the title)
M. Charalambous, F. Holtzberg, and R. H. Koch
to appear in Physica C (1994).
Subpicovolt resolution measurements of the current voltage characteristics of twinned crystalline YBCO new evidence for a vortex glass phase
M. Charalambous, R.H. Koch, T. Masselink, T. Doany, T. C. Feild, and F. Holtzberg
Phys. Rev. Lett. 75 2578 (1995).
Finite size effects on the vortex glass transition in thin YBCO filsm
Woltgens, P.J.M. Dekker, C. Koch, R.H. Hussey, B.W. Gupta, A
Phys. Rev. 52B 4536 (1995).
Finite size effects on the vortex glass transition in thin YBCO films
Woltgens, P.J.M. Dekker, C. Koch, R.H. Hussey, B.W. Gupta, A
Phys. Rev. B, Condens. Matter (USA) Vol.52, No.6 1 Aug. 1995 P4536-44
Irreversibility and melting in YBCO through AC susceptibility measurements
Billon, B. Charalambous, M. Chaussy, J. Lejay, P. Koch, R.H. Hardy, W.N.
Czech. J. Phys. (Czech Republic) Vol.46, suppl., pt.S3 1996 P1581-2
Irreversibility and melting in YBCO through AC susceptibility measurements
Billon, B. Charalambous, M. Chaussy, J. Lejay, P. Koch, R.H. Hardy, W.N.
Phys. Rev. B, Condens. Matter (USA) Vol.55, No.22 1 June 1997, PR14753-6
Hall magnetometry measurements of bulk single crystalline rings of YBCO
Charalambous, M. Koch, R.H. and A. Kent
Phys. Rev. B, Condens. Matter (USA) Vol.58, No.14 1 Oct. 1998, P9510-23
Room-temperature Three Sensor Magnetic Field Gradiometer
Koch, R.H. Keefe, G.A. Allen, G.
Rev. Sci. Instrum. (USA) Vol.67, No.1 Jan. 1996 P230-5
A low-noise single-domain fluxgate sensor
Deak, J. Miklich, A.H. Sloncsewski, J. Koch, R.H.
Appl. Phys. Lett. (USA) Vol.69, No.8 19 Aug. 1996 P1157-9
( html file )
Initial evaluation and follow on investigation of the Quantum Magnetics laboratory prototype, room temperature gradiometer for ordnance location
Allen, G.I. Czipott, P. Matthews, R. Koch, R.H.
Proc. SPIE - Int. Soc. Opt. Eng. (USA) Vol.3711 1999 P103-12
Development of a man portable room temperature gradiometer. II. Portable and fieldable prototype
Czipott, P.V. Mathews, R. Perry, A.R. Koch, R.H. Allen, G.I.
Proc. SPIE - Int. Soc. Opt. Eng. (USA) Vol.3711 1999 P113-22
Initial evaluation and follow on investigation of the Quantum Magnetics laboratory prototype, room temperature gradiometer for ordnance location
Allen, G.I. Czipott, P. Matthews, R. Koch, R.H.
Proc. SPIE - Int. Soc. Opt. Eng. (USA) Vol.3711 1999 P103-12
Fundamental limits to magnetic field sensitivity of fluxgate magnetic field sensors
Koch, R.H. Deak, J.G. Grinstein, G.
Appl. Phys. Lett. (USA) Vol.75, No.24 13 Dec. 1999 P3862-4
(ps file)
(pdf file)
Magnetic background noise cancellation in real-world environments
P.J.M. Woltgens and R.H. Koch
Rev. Sci. Instrum. (USA) Vol.71, No.3 March 2000 P1529-33
Responsivity and Noise of Uniaxial Monodomain Thin Film Fluxgate Magnetometers
J. G. Deak, R. H. Koch, G. E. Guthmiller and R. E. Fontana
IEEE Transactions on Magnetics v 36 n 4 II Jul 2000. p 2052-2056
(pdf file)
Low noise fluxgate magnetic field sensors using ring and rod core geometries
R.H. Koch and J. R. Rozen
Appl. Phys. Letts, accepted.
(ps file)
(pdf file)
Magnetization reversal micron-sized magnetic thin films
R.H. Koch, J.G. Deak, D.W. Abraham, P.L. Trouilloud, R.A. Altman, Yu Lu, W. J. Gallagher, R. E. Scheuerlein, K.P. Roche, and S.S.P. Parkin
Phys. Rev. Lett. Nov. 16 1998,
(ps file)
(pdf file)
1/f noise in magnetite films
Raquet, B. Coey, J.M.D. Lind, D.M. von Molnar, S. Anane, A. Koch, R.H.
J. Appl. Phys. (USA) Vol.85, No.8 15 April 1999 P5582-4
The effects of edge roughness on magnetization reversal in micron-size permalloy thin films
J. G. Deak and R. H. Koch
J. Magn. Magn. Mater. (Netherlands) Vol.213, No.1-2 April 2000 P25-31
Low-Frequency Magnetic Noise in Micron-Scale Magnetic Tunnel Junctions
S. Ingvarsson, Gang Xiao, S. S. P. Parkin W. J. Gallagher, G. Grinstein, and R. H. Koch
Phys. Rev. Letts, 85, (2000) 3290.
(pdf file)
(ps file)
Thermally assisted magnetization reversal in submicron-sized magnetic thin films
R.H. Koch, G. Grinstein, G.A. Keefe Yu Lu,P.L. Trouilloud, W. J. Gallagher, and S.S.P. Parkin
Phys. Rev. Letts, 84, (2000) 5419.
(ps file)
(pdf file)
Numerical Simulations of Magnetic Materials with MD-GRAPE
B.G. Elmegreen, R. H. Koch, K. Yasuoka, H. Furusawa, T. Narumi, R. Susukita, and T. Ebisuzaki
Submitted to J. Magn. Magn. Mater.
Multiplicative Noise in the Landau-Lifshitz-Gilbert Equations of Micromagnetics
G. Grinstein and R. H. Koch
Submitted to Phys. Rev. B.
Transport in insulating YBa/sub 2/Cu/sub 3/O/sub 7- delta /
Milliken, F.P. Doderer, T. Koch, R.H. Tsuei, C.C.
Phys. Rev. B, Condens. Matter (USA) Vol.62, No.13 1 Oct. 2000 P9143-7