PRESSURE-DEPENDENCE OF SUPERCONDUCTING TRANSITION-TEMPERATURE AND OF HALL CONSTANT IN HIGH-TC CU-OXIDE SUPERCONDUCTORS

被引：51

作者：

MORI, N

MURAYAMA, C

TAKAHASHI, H

KANEKO, H

KAWABATA, K

IYE, Y

UCHIDA, S

TAKAGI, H

TOKURA, Y

KUBO, Y

SASAKURA, H

YAMAYA, K

机构：

[1] UNIV TOKYO,ENGN RES INST,TOKYO 106,JAPAN

[2] NEC CORP LTD,FUNDAMENTAL RES LABS,MIYAMAE KU,KAWASAKI 216,JAPAN

[3] HOKKAIDO UNIV,DEPT NUCL ENGN,SAPPORO,HOKKAIDO 060,JAPAN

[4] UNIV OSAKA PREFECTURE,DEPT MAT SCI,SAKAI,OSAKA 591,JAPAN

[5] UNIV TOKYO,DEPT PHYS,TOKYO 113,JAPAN

来源：

PHYSICA C | 1991年 / 185卷 / pt 1期

关键词：

Ceramic Materials - Superconducting Materials - Pressure Effects;

D O I：

10.1016/0921-4534(91)91947-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The pressure derivative of T(c) in the hole-doped superconductors having relatively lower carrier concentration is shown to change the sign from positive to negative at a certain pressure with a maximum of T(c), while it is negative in the highly-doped ones, which is confirmed as a general feature in these compounds. The Hall constants of the samples YBa2Cu3O7, CaBaLaCu3O7-y, YBa2Cu4O8, Bi2Sr2CaCu2O8 and Tl2Ba2CuO6+y is found to increase by about 10%/GPa which is almost the same amount that estimated by Yamada et al. from the Madelung energy calculation for YBa2Cu4O8.

引用

页码：40 / 44

页数：5

共 15 条

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