SUPERCONDUCTIVITY STUDIES ON TL-M-BA-CU-O (M = CE, TH, PR, TB, PB, AND TE) SYSTEM

被引：1

作者：

THOMAS, KA ^{[1
]}

VARADARAJU, UV ^{[1
]}

RAO, GVS ^{[1
]}

TOMY, CV ^{[1
]}

MALIK, SK ^{[1
]}

机构：

[1] TATA INST FUNDAMENTAL RES,BOMBAY 400005,INDIA

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1990年 / 88卷 / 01期

关键词：

D O I：

10.1016/0022-4596(90)90212-G

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Superconductivity with a Tc,zero at 75 ± 1 K has been observed in TlMBaCuO (M = Ce, Th) system for a starting nominal composition of Tl2.2M1Ba2Cu3Oy. X-ray data show that the compounds are multiphasic with the 2201 phase as the predominant one which is responsible for superconductivity. Lower Tc values are noted for M = Pr and Tb. Only metallic behavior is observed for pure Tl2Ba2Cu1Oy and M = Pb or (Pb + Sb) or Te containing phases down to 15 K. © 1990.

引用

页码：177 / 182

页数：6

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