| Records |
| Author |
López, D.; Righi, E. F.; Nieva, G.; de la Cruz, F.; Kwok, W. K.; Fendrich, J. A.; Crabtree, G. W.; Paulius, L. |
| Title |
Discontinuous Onset of the c-axis Vortex Correlation at the Melting Transition in YBa2Cu3O7 |
Type |
Conference Article |
| Year |
1996 |
Publication |
Proceedings of the 10th Anniversary Hts Workshop on Physics, Materials and Applications |
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| Volume |
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Issue |
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Pages |
411 |
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| Publisher |
World Scientific Publishing Company |
Place of Publication |
Singapore |
Editor |
Batlogg, B. |
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| ISSN |
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ISBN |
9810227159 |
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no |
| Call Number |
BT @ gnieva @ |
Serial |
462 |
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| Author |
Righi, E. F.; Grigera, S. A.; Nieva, G.; de la Cruz, F. |
| Title |
Vortex phase coherence along the c axis in YBa2Cu3O7-d |
Type |
Journal Article |
| Year |
1998 |
Publication |
Superconduvtivity Reviews |
Abbreviated Journal |
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| Volume |
2 |
Issue |
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Pages |
205 |
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| ISSN |
1054-2698 |
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no |
| Call Number |
BT @ gnieva @ |
Serial |
465 |
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| Author |
Arce, R.; de la Cruz, F.; Fink, H.J. |
| Title |
Model relating superconductive penetration depth and metallurgical phase separation in amorphous La70Cu30 |
Type |
Journal Article |
| Year |
1982 |
Publication |
Solid State Communications |
Abbreviated Journal |
Solid State Commun. |
| Volume |
42 |
Issue |
8 |
Pages |
575-577 |
| Keywords |
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| Abstract |
A model is proposed to account for the large increase in the measured penetration depth of superconducting, amorphous La70Cu30 when the specimens are annealed sufficiently long near, but below, the crystallization temperature. It is suggested that a metallurgical phase separation occurs with domain dimensions in the submicrometer range. Penetration depth measurements as a function of temperature in a weak magnetic field are a useful tool to detect changes in phase separation in high-K materials. |
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| ISSN |
0038-1098 |
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no |
| Call Number |
BT @ pedrazp @ |
Serial |
567 |
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| Author |
Arce, R.; de la Cruz, F.; Esquinazi, P. |
| Title |
Superconducting penetration depth in amorphous metals |
Type |
Journal Article |
| Year |
1981 |
Publication |
Solid State Communications |
Abbreviated Journal |
Solid State Commun. |
| Volume |
38 |
Issue |
12 |
Pages |
1253-1255 |
| Keywords |
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| Abstract |
We show that temperature dependent penetration depth measurements can be used to characterize the superconductive behaviour of amorphous metals. |
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| ISSN |
0038-1098 |
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no |
| Call Number |
BT @ pedrazp @ |
Serial |
557 |
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| Author |
Favaron, J.; de la Cruz, M.E.; Esquinazi, P.; de la Cruz, F. |
| Title |
Phase diagram and superconductive properties of splat-cooled CuxLa1-x |
Type |
Journal Article |
| Year |
1980 |
Publication |
Physical Review B |
Abbreviated Journal |
Phys. Rev. B |
| Volume |
21 |
Issue |
7 |
Pages |
2804-2808 |
| Keywords |
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| Abstract |
The phase diagram of nonequilibrium, splat-cooled CuxLa1-x is interpreted by means of superconductive-transition and x-ray measurements. At the eutectic composition the material is shown to be in a highly disordered state. Measurements of dc resistance and ac susceptibility show that there are two different critical fields at the disordered concentration although there is a unique critical temperature. |
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| Publisher |
American Physical Society |
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no |
| Call Number |
BT @ pedrazp @ PhysRevB.21.2804 |
Serial |
535 |
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| Author |
de la Cruz, F.; de la Cruz, M.E.; Cotignola, J.M. |
| Title |
Longitudinal Magnetomorphic Effect in Indium Films |
Type |
Journal Article |
| Year |
1967 |
Publication |
Physical Review |
Abbreviated Journal |
Phys. Rev. |
| Volume |
163 |
Issue |
3 |
Pages |
575-578 |
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| Publisher |
American Physical Society |
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| Call Number |
BT @ pedrazp @ PhysRev.163.575 |
Serial |
537 |
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| Author |
Guimpel, J.; de la Cruz, F.; Murduck, J.; Schuller, I.K. |
| Title |
Penetration depth of a superconducting superlattice |
Type |
Journal Article |
| Year |
1987 |
Publication |
Physical Review B |
Abbreviated Journal |
Phys. Rev. B |
| Volume |
35 |
Issue |
7 |
Pages |
3655-3656 |
| Keywords |
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| Abstract |
We have measured the magnetic-flux expulsion of a superconducting superlattice and related it to the Meissner penetration depth. The temperature dependence of the penetration depth is in quantitative agreement with theoretical expectation based on mean-field theory. The zero-temperature penetration depth is found in excellent, quantitative agreement without adjustable parameters with theoretical predictions for dirty superconductors. |
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| Publisher |
American Physical Society |
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| Notes |
Rapid Communications |
Approved |
no |
| Call Number |
BT @ pedrazp @ 10.1103/PhysRevB.35.3655 |
Serial |
538 |
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| Author |
Guimpel, J.; Civale, L.; de la Cruz, F.; Murduck, J.M.; Schuller, I.K. |
| Title |
Dimensional phase transition in superconductors with short coherence length |
Type |
Journal Article |
| Year |
1988 |
Publication |
Physical Review B |
Abbreviated Journal |
PRB |
| Volume |
38 |
Issue |
4 |
Pages |
2342-2344 |
| Keywords |
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| Abstract |
We found a novel dimensional transition in the vortex lattice of a finite-sized superconductor. The low-field dependence (with field applied parallel to the film plane) of the magnetization exhibits two maxima, which signal the transition from one to two dimensions. In one dimension the vortices line up along the film, and with increasing field their arrangement changes into a two-dimensional array due to the competition between vortex-surface and vortex-vortex repulsion. Agreement is found with no adjustable parameter calculations using a priori known surface-barrier and vortex-repulsion effects. |
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| Publisher |
American Physical Society |
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no |
| Call Number |
BT @ pedrazp @ 10.1103/PhysRevB.38.2342 |
Serial |
539 |
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| Author |
Guimpel, J.; de la Cruz, F. |
| Title |
Electrical resistivity of amorphous Zr70Cu30 and the Kondo like model |
Type |
Journal Article |
| Year |
1982 |
Publication |
Solid State Communications |
Abbreviated Journal |
Solid State Commun. |
| Volume |
44 |
Issue |
7 |
Pages |
1045-1046 |
| Keywords |
Zr70Cu30; superconductivity; electrical resistivity; ZIRCONIUM COPPER ALLOYS |
| Abstract |
Electrical resistivity measurements of amorphous Zr70Cu30 as a function of the concentrations of two level systems show that a Kondo like theory cannot explain the observed temperature dependence. |
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| ISSN |
0038-1098 |
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Approved |
no |
| Call Number |
BT @ pedrazp @ |
Serial |
540 |
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| Author |
Duran, C.; Yazyi, J.; de la Cruz, F.; Bishop, D.J.; Mitzi, D.B.; Kapitulnik, A. |
| Title |
Flux-lattice melting, anisotropy, and the role of interlayer coupling in Bi-Sr-Ca-Cu-O single crystals |
Type |
Journal Article |
| Year |
1991 |
Publication |
Physical Review B |
Abbreviated Journal |
PRB |
| Volume |
44 |
Issue |
14 |
Pages |
7737-7740 |
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| Abstract |
We have used the high-Q mechanical-oscillator technique to probe the vortex-lattice structure in high-quality Bi-Sr-Ca-Cu-O single crystals over a wide range of magnetic fields (200 Oe to 40 kOe), and relative orientations θ between the magnetic field and the crystalline c^ axis. In addition to the large softening and dissipation peak previously observed and interpreted as due to flux-lattice melting, another distinctly different peak at higher temperatures is seen. The temperatures where the dissipation peaks take place are solely defined by the parallel component of the field cosθ, while the restoring force on the oscillator is due to both field components. We suggest that the two peaks are due to the softening of interplanar coupling at the low-temperature peak, and melting or depinning of the two-dimensional pancake vortices at the higher-temperature peak. |
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| Publisher |
American Physical Society |
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Rapid Communication |
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no |
| Call Number |
BT @ pedrazp @ 10.1103/PhysRevB.44.7737 |
Serial |
543 |
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