SUPERCONDUCTIVITY AT 133 K IN TL2BA2CA2CU3O10-PRESSURE(X UNDER HIGH)

Authors
JOVER DT WIJNGAARDEN RJ LIU RS TALLON JL GRIESSEN R
Citation
Dt. Jover et al., SUPERCONDUCTIVITY AT 133 K IN TL2BA2CA2CU3O10-PRESSURE(X UNDER HIGH), Physica. C, Superconductivity, 218(1-2), 1993, pp. 24-28
Citations number
27
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
218
Issue
1-2
Year of publication
1993
Pages
24 - 28
Database
ISI
SICI code
0921-4534(1993)218:1-2<24:SA1KIT>2.0.ZU;2-D
Abstract
The pressure dependence of the superconducting transition temperature T(c) of Tl2Ba2Ca2Cu3O10+x (Tl-2223) has been measured under pressures up to 13 GPa (130 kbar). At 4.2 GPa a maximum is observed with a T(c) of 133 K. This is the highest T(c) yet observed for any high-T(c) supe rconductor with the exception of the recently discovered mercury-based compound Hg-Ba2Ca2Cu3O8+x (Hg-1223). Because of some structural diffe rences between Tl-2223 and Hg-1223, a slightly higher maximum T(c) is predicted for Hg-1223. Both T(c) and its pressure dependence are discu ssed on the basis of a simple charge-transfer model.