CRYSTAL-STRUCTURE OF (HG0.7TL0.3)(2)BA-2(Y0.8CA0.2)CU2O8-DELTA SYNTHESIZED AT HIGH-PRESSURE

Authors
OHTA T TOKIWAYAMAMOTO A IZUMI F HEWAT AW TANABE K
Citation
T. Ohta et al., CRYSTAL-STRUCTURE OF (HG0.7TL0.3)(2)BA-2(Y0.8CA0.2)CU2O8-DELTA SYNTHESIZED AT HIGH-PRESSURE, Physica. C, Superconductivity, 282, 1997, pp. 911-912
Citations number
4
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
2
Pages
911 - 912
Database
ISI
SICI code
0921-4534(1997)282:<911:CO(S>2.0.ZU;2-2
Abstract
We prepared Hg-0.7Tl?(0.3)(2)Ba-2(Y0.8Ca0.2)Cu(2)O8-delta with a T-c o f 65 K at 5 GPa and 1050 degrees C and analyzed its structure by neutr on powder diffraction. Rietveld analysis showed highly disordered atom ic arrangements on double (Hg, Tl)O layers, the absence of oxygen vaca ncies, and an underdoped state of the CuO2 sheet.