| Records |
| Author |
López, D.; Safar, H.; Gammel, P.L.; Huse, D.A.; Majumdar, S.N.; Schneemeyer, L.F.; Bishop, D.J.; Nieva, G.; de la Cruz, F. |
| Title |
Reply to the Comment: Local versus Non-Local Conductivity in YBa2Cu3O7-d |
Type |
Journal Article |
Year  |
1995 |
Publication |
Physical Review Letters |
Abbreviated Journal |
Phys. Rev. Lett. |
| Volume |
75 |
Issue |
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Pages |
2447 |
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| Abstract |
A Reply to the Comment by Yu. Eltsev and O. Rapp. |
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BT @ gnieva @ |
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446 |
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Lopez, D.; Righi, E. F.; Nieva, G.; de la Cruz, F.; Kwok, W. K.; Fendrich, J. A.; Crabtree, G. W.; Paulius, L. |
| Title |
Amplification of the c-axis vortex correlation by twin-boundary pinning at the vortex liquid-solid phase transition |
Type |
Journal Article |
| Year |
1996 |
Publication |
PHYSICAL REVIEW B |
Abbreviated Journal |
Phys. Rev. B |
| Volume |
53 |
Issue |
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Pages |
R8895 |
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| Abstract |
Transport measurements using the dc flux transformer configuration together with c-axis resistance data in clean and twinned YBa2Cu3O7-δ single crystals show that vortices are localized by the twin-boundary potential. The results support the existence of a divergent tilt modulus [D. R. Nelson and V. M. Vinokur, Phys. Rev. B 48, 13 060 (1993)] in a liquid that freezes into a Bose glass |
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BT @ gnieva @ |
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447 |
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| Author |
López, D.; Righi, E. F.; Nieva, G.; de la Cruz, F. |
| Title |
Coincidence of Vortex-Lattice Melting and Loss of Vortex Correlation along the c Direction in Untwinned YBa2Cu3O7-δ Single Crystals |
Type |
Journal Article |
| Year |
1996 |
Publication |
Physical Review Letters |
Abbreviated Journal |
Phys. Rev. Lett. |
| Volume |
76 |
Issue |
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Pages |
4034 |
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| Abstract |
We report on transport measurements using the dc flux transformer configuration in clean and twinned single crystals of YBa2Cu3O7-δ. We show that correlated disorder changes not only the order of the solid-liquid phase transition but also the nature of the vortices in the liquid state. In clean crystals, melting is shown to take place between a solid of vortex lines and a liquid with no correlation in the direction of the magnetic field. |
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BT @ gnieva @ |
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448 |
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López, D.; Jagla, E. A.; Righi, E. F.; Osquiguil, E.; Nieva, G.; Morré, E.; de la Cruz, F.; Balseiro, C. A. |
| Title |
Dynamic softening of vortex lines in YBa2Cu3O7−δ single crystals |
Type |
Journal Article |
| Year |
1996 |
Publication |
Physica C: Superconductivity |
Abbreviated Journal |
Physica C |
| Volume |
260 |
Issue |
3-4 |
Pages |
211-216 |
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Transport measurements in the mixed state of oxygen-deficient YBa2Cu3O7−δ single crystals using the flux transformer configuration show that the flux liquid changes with increasing anisotropy from strongly correlated to uncorrelated in the field direction. For intermediate coupling, the current inducing loss of vortex correlation has a maximum near the irreversibility temperature. Thus, an effective softening of vortex lines with decreasing temperature is detected. We propose a simple model that accounts for this behavior by including the effects of the pinning potential on the dynamics of vortices. |
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no |
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BT @ gnieva @ |
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454 |
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de la Cruz, F.; López, D.; Righi, E. F.; Nieva, G. |
| Title |
Comparative Study of Vortex Correlation in Twinned and Untwinned YBa2Cu3O7 Single Crystals |
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Conference Article |
| Year |
1996 |
Publication |
Proceedings of the 10th Anniversary Hts Workshop on Physics, Materials and Applications |
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395 |
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World Scientific Publishing Company |
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Singapore |
Editor |
Batlogg, B. |
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9810227159 |
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no |
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BT @ gnieva @ |
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461 |
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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 |
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Conference Article |
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1996 |
Publication |
Proceedings of the 10th Anniversary Hts Workshop on Physics, Materials and Applications |
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411 |
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World Scientific Publishing Company |
Place of Publication |
Singapore |
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Batlogg, B. |
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9810227159 |
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BT @ gnieva @ |
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462 |
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Morré, E.; Grigera, S.; Osquiguil, E.; Nieva, G.; de la Cruz, F. |
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Angular restrictions on the glass transition and on the c-axis correlated liquid phase in twinned YBa2Cu3O7-? |
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Journal Article |
| Year |
1997 |
Publication |
Physics Letters A |
Abbreviated Journal |
Phys. Lett. A |
| Volume |
233 |
Issue |
1-2 |
Pages |
130-134 |
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We have measured the angular dependence of the vortex velocity correlation temperature Tth(H) in twinned YBa2Cu3O7-? single crystals. The data show that the c-axis correlated vortex liquid phase exists up to angles much larger than expected within a single vortex pinning picture. Despite this, the second-order solid-liquid glass transition is shown to be restricted only to external magnetic fields applied within a few degrees from the c-axis direction. |
| Address |
Centro Atómico Bariloche |
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03759601 |
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Cited By (since 1996): 13; Export Date: 17 April 2009; Source: Scopus; CODEN: PYLAA; Language of Original Document: English; Correspondence Address: Morr |
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BT @ osquigui @ |
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381 |
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Ferrari, H.; Valenzuela, S.O.; Bekeris, V.; Guimpel, J.; de la Cruz, F. |
| Title |
Short-time magnetization in superconducting thin films |
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Journal Article |
| Year |
1998 |
Publication |
REVISTA MEXICANA DE FISICA |
Abbreviated Journal |
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44 |
Issue |
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193-195 |
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We have investigated the magnetization in thin (Y;Gd)Ba2Cu3O7-delta superconducting films in the 100 μs time scale. Magnetic moment was measured with a non-conventional technique that combines the use of a pulsed magnetic field and a synchronized pulsed laser. Both virgin and magnetically cycled samples were examined and results are described within Bean's critical state model. |
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0035-001X |
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ISI:000077675900051 |
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no |
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BT @ hernan @ |
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182 |
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Valenzuela, S.O.; Ferrari, H.; Bekeris, V.; Marconi, M.C.; Guimpel, J.; de la Cruz, F. |
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Nonconventional short-time dc magnetometer for superconducting films |
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Journal Article |
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1998 |
Publication |
REVIEW OF SCIENTIFIC INSTRUMENTS |
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69 |
Issue |
1 |
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251-254 |
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A nonconventional technique for the measurement of magnetic relaxation in superconducting films at short times (similar to 10(-5) s) is described. This technique combines the application of a pulsed magnetic field and a synchronized high-energy pulsed laser. Remanent magnetic relaxation in (Y;Gd)Ba2Cu3O7-delta thin films is reported over five decades time at reduced temperatures above 0.8. (C) 1998 American Institute of Physics. |
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0034-6748 |
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ISI:000071578800041 |
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no |
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BT @ hernan @ |
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185 |
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Grigera, S.A.; Morre, E.; Osquiguil, E.; Balseiro, C.; Nieva, G.; de la Cruz, F. |
| Title |
Bose-glass phase in twinned YBa2Cu3O7-delta |
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Journal Article |
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1998 |
Publication |
PHYSICAL REVIEW LETTERS |
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81 |
Issue |
11 |
Pages |
2348-2351 |
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Using an extensive scaling analysis of the transport properties in twinned YBa2Cu3O7-delta crystals we have experimentally found the predicted change in the universality class of the Bose-glass to liquid transition when the magnetic field is applied at small angles away from the direction of the correlated defects. The new dynamical critical exponent is s' = 1.1 +/- 0.3. |
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0031-9007 |
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ISI:000075897300042 |
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no |
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BT @ hernan @ |
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235 |
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