ENHANCEMENT OF SUPERCONDUCTIVITY BY LOW-ENERGY AR ION MILLING IN EPITAXIAL YBA2CU3O7 THIN-FILMS

Authors
CHEN L YANG T NIE JC WU PJ HUANG MQ LIU GR ZHAO ZX
Citation
L. Chen et al., ENHANCEMENT OF SUPERCONDUCTIVITY BY LOW-ENERGY AR ION MILLING IN EPITAXIAL YBA2CU3O7 THIN-FILMS, Physica. C, Superconductivity, 282, 1997, pp. 657-658
Citations number
3
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
2
Pages
657 - 658
Database
ISI
SICI code
0921-4534(1997)282:<657:EOSBLA>2.0.ZU;2-U
Abstract
Epitaxial YBa2Cu3O7 thin films were etched with low energy Ar ion at r oom temperature. It was found that, a substantial enhancement of the s uperconducting transition temperature was obtained at a short time mil ling for both electrical and magnetic measurement. The X-ray diffracti on showed that the lattice frame of the sample was nearly unchanged af ter lower energy Ar ion milling. We suggest that the T-c enchancement may be caused by the oxygen redistribution at low energy Ar ion millin g.