ANOMALOUS RESISTANCE BEHAVIOR OBSERVED ACROSS THE INTERFACE OF SUPERCONDUCTING YBA2CU3O7 AND FERROMAGNETIC LA0.7CA0.3MNO3

Authors
LIAN GJ WANG ZH GAO J ZHOU YQ KANG JF LI MY XIONG GC
Citation
Gj. Lian et al., ANOMALOUS RESISTANCE BEHAVIOR OBSERVED ACROSS THE INTERFACE OF SUPERCONDUCTING YBA2CU3O7 AND FERROMAGNETIC LA0.7CA0.3MNO3, Solid state communications, 108(2), 1998, pp. 123-126
Citations number
16
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
108
Issue
2
Year of publication
1998
Pages
123 - 126
Database
ISI
SICI code
0038-1098(1998)108:2<123:ARBOAT>2.0.ZU;2-A
Abstract
Temperature dependencies of the resistance across the interface of sup erconducting YBa2Cu3O7 and ferromagnetic La0.7Ca0.3MnO3 were investiga ted in La0.7Ca0.3MnO3/YBa2Cu3O7 double-layer and cross-strip samples. Anomalous resistance behavior, a relatively large resistance value wit h a superconducting-like transition, was observed in both samples. In the cross-strip sample the voltage signal changed to extremely large n egative values in the temperature region of 170-90 K, which was corres ponding to the resistance peak in the LCMO strip. A possible explanati on is discussed. (C) 1998 Elsevier Science Ltd. All rights reserved.