Search Results - "Colclough, M. S."

Bi-epitaxial grain boundary junctions in YBa2Cu3O7 by CHAR, K, COLCLOUGH, M. S, GARRISON, S. M, NEWMAN, N, ZAHARCHUK, G

“…We have developed a new way of making grain boundary junctions in YBa2Cu3O7 thin films by controlling the in-plane epitaxy of the deposited film using seed and…”
Get full text

Flux focusing effects in planar thin-film grain-boundary Josephson junctions by Rosenthal, Peter A., Beasley, M. R., Char, K., Colclough, M. S., Zaharchuk, G.

“…We have studied the magnetic interference of the critical currents of synthetic planar thin-film grain-boundary Josephson junctions. We find that the effective…”
Get full text

High Tc superconductor-normal-superconductor Josephson junctions using CaRuO3 as the metallic barrier by CHAR, K, COLCLOUGH, M. S, GEBALLE, T. H, MYERS, K. E

“…Josephson junctions of the SNS type have been fabricated in the edge and trilayer junction geometries using YBa2Cu3O(7-delta) /CaRuO3/YBa2Cu3O(7-delta). The…”
Get full text

Magnetic field tuning of coplanar waveguide resonators by Healey, J. E., Lindström, T., Colclough, M. S., Muirhead, C. M., Tzalenchuk, A. Ya

“…We describe measurements on microwave coplanar resonators designed for quantum bit experiments. Resonators have been patterned onto sapphire and silicon…”
Get full text

Monolithic 77 K dc SQUID magnetometer by LEE, L. P, CHAR, K, COLCLOUGH, M. S, ZAHARCHUK, G

“…We report the first fabrication of a monolithic dc SQUID magnetometer that operates above 77 K. We have used bi-epitaxial grain boundary Josephson junctions in…”
Get full text

Holes in YBa2Cu3O7-x thin films on vicinal strontium titanate substrates by JACKSON, T. J, ABELL, J. S, CHAKALOV, R, COLCLOUGH, M. S, DARLINGTON, C. N. W, JONES, I. P, KONG, G, MUIRHEAD, C. M, WELLHÖFER, F

“…YBa2Cu3O7-x thin films grown by pulsed laser deposition on vicinal SrTiO3 (001) substrates frequently exhibit holes. These appear to be directly correlated…”
Get full text

Extension of the bi-epitaxial Josephson junction process to various substrates by CHAR, K, COLCLOUGH, M. S, LEE, L. P, ZAHARCHUK, G

“…We report an extension of the bi-epitaxial Josephson junction process that permits the use of a variety of substrate materials and allows junctions to be…”
Get full text

Flicker (1/f) noise in biepitaxial grain boundary junctions of YBa2Cu3O7-x by MIKKLICH, A. H, CLARKE, J, COLCLOUGH, M. S, CHAR, K

“…At low frequencies f the 1/f noise power in single biepitaxial junctions of YBa2Cu3 O7−x peaks sharply for bias currents just above the noise reduced critical…”
Get full text

LTS SQUID microscope with micron spatial resolution by Anderberg, J., Colclough, M.S., Crum, D.B., Tokura, Y., Paulson, D.N., Fagaly, R.L.

“…We describe a multichannel LTS SQUID microscope with micron spatial resolution. The system achieves micron resolution by the use of small (14 /spl mu/m)…”
Get full text

Critical current control in a superconducting thin film with a ferromagnetic layer by Allsworth, M.D., Chakalov, R.A., Mikheenko, P., Colclough, M.S., Muirhead, C.M.

“…We report suppression of the critical current of thin film YBa/sub 2/Cu/sub 3/O/sub 7/ layers by altering the magnetization of a ferromagnetic La/sub…”
Get full text

Force and force gradients due to trapped-flux in superconducting accelerometers by Speake, C.C., Trenkel, C., Colclough, M.S.

“…We briefly review the phenomenology of flux trapping in superconductors and its relevance to Fundamental Physics experiments such as STEP. We develop…”
Get full text

Sensitive YBa2Cu3O7-x thin-film magnetometer by MIKLICH, A. H, KINGSTON, J. J, WELLSTOOD, F. C, CLARKE, J, COLCLOUGH, M. S, CHAR, K, ZAHARCHUK, G

“…Our YBa2Cu3O7−x thin-film magnetometer consists of a dc superconducting quantum interference device with bi-epitaxial Josephson junctions, fabricated on one…”
Get full text

Flux quantization in a high-Tc superconductor by GOUGH, C. E, COLCLOUGH, M. S, FORGAN, E. M, JORDAN, R. G, KEENE, M, MUIRHEAD, C. M, RAE, A. I. M, THOMAS, N, ABELL, J. S, SUTTON, S

Get full text

Phase slips in submicrometer YBaCu3O7-δ bridges by MIKHEENKO, P, DENG, X, GILDERT, S, COLCLOUGH, M. S, SMITH, R. A, MUIRHEAD, C. M, PREWETT, P. D, TENG, J

Get full text

Noise properties of biepitaxial HTS junctions by Hammond, S.G., He, Y., Muirhead, C.M., Wu, P., Colclough, M.S., Char, K.

“…The authors have measured the voltage noise across a biepitaxial junction at both low current, where the noise is dominated by critical current fluctuations,…”
Get full text

Radio-frequency SQUID operation using a ceramic high-temperature superconductor by Colclough, M. S, Gough, C. E, Keene, M, Muirhead, C. M, Thomas, N, Abell, J. S, Sutton, S

“…The recent discovery of ceramic superconductors with high transition temperatures opens the way for the development of superconducting devices operating at…”
Get full text

Monolithic 77K DC SQUID Magnetometer by Lee, L P, Char, K, Colclough, M S, Zaharchuk, G

“…The first fabrication of a monolithic dc SQUID magnetometer that operates above 77K is reported. Bi-epitaxial grain boundary Josephson junctions in YBa sub 2…”
Get full text

Voltage-current characteristics and noise properties of SNS junctions by Flett, A., Colclough, M.S., He, Y., Muirhead, C.M., Robinson, R.A., Char, K.

“…We report measurements of V/I/B characteristics for a number of YBCO/N/YBCO junctions where the N layer is Co doped YBCO. The field dependence of about half…”
Get full text

Superconductivity in thin-film YBa2Cu3O7−δ/La0.7Ca0.3MnO3 bilayers by Allsworth, M. D., Chakalov, R. A., Colclough, M. S., Mikheenko, P., Muirhead, C. M.

“…We report the influence of the magnetic state of thin films of La0.7Ca0.3MnO3 (LCMO) on the superconducting order parameter in LCMO/YBa2Cu3O7−δ (YBCO)…”
Get full text

Effect of spin-polarized injection on the mixed state of YBa2Cu3O7−δ by Mikheenko, P., Colclough, M. S., Severac, C., Chakalov, R., Welhoffer, F., Muirhead, C. M.

“…We report measurements of the magnetic moment of YBa2Cu3O7−δ films when subjected to injection of short pulses of spin-polarized current from the colossal…”
Get full text