124 K SUPERCONDUCTIVITY IN CU-BA-CA-CU-O

被引：9

作者：

GAO, L ^{[1
]}

DU, ZL ^{[1
]}

CAO, Y ^{[1
]}

RUSAKOVA, I ^{[1
]}

SUN, YY ^{[1
]}

XUE, YY ^{[1
]}

CHU, CW ^{[1
]}

机构：

[1] UNIV HOUSTON,DEPT PHYS,HOUSTON,TX 77204

来源：

MODERN PHYSICS LETTERS B | 1995年 / 9卷 / 21期

关键词：

D O I：

10.1142/S021798499500139X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A superconducting phase with a transition temperature up to 124 K has been detected in multiphase samples of Cu-Ba-Ca-Cu-O synthesized under pressures between 5.5 and 6 GPa and at temperatures between 820 and 870 degrees C. The 124 K transition is attributed to a phase closely related to CuBa2Can-1CunOy, which is known to be superconducting only below 117 K, with a possible subtle change in the local atomic arrangement or stoichiometry. Structure details and the optimal synthesis conditions of the 124 K phase have yet to be determined.

引用

页码：1397 / 1406

页数：10

共 7 条

[1] THE SUPERCONDUCTING COPPER/CARBONATE CUPRATES - AN ELECTRON-MICROSCOPY STUDY [J].

ALARIOFRANCO, MA ;

BORDET, P ;

CAPPONI, JJ ;

CHAILLOUT, C ;

CHENAVAS, J ;

FOURNIER, T ;

MAREZIO, M ;

SOULETIE, B ;

SULPICE, A ;

THOLENCE, JL ;

COLLIEX, C ;

ARGOUD, R ;

BALDONEDO, JL ;

GORIUS, MF ;

PERROUX, M .

PHYSICA C, 1994, 231 (1-2) :103-108

[2] NEW HIGH-TC SUPERCONDUCTOR FAMILIES OF AG1-XCUXBA2CAN-1CUNO2N+3-Y AND CUBA2CAN-1CUNO2N+4-Y WITH TC-GREATER-THAN-116-K [J].

IHARA, H ;

TOKIWA, K ;

IYO, A ;

HIRABAYASHI, M ;

TERADA, N ;

TOKUMOTO, M ;

SONG, YS .

PHYSICA C, 1994, 235 :981-982

[3] NEW HIGH-T(C) SUPERCONDUCTOR AG1-XCUXBA2CAN-1CUNO2N+3-DELTA FAMILY WITH T(C)GREATER-THAN-117-K [J].

IHARA, H ;

TOKIWA, K ;

OZAWA, H ;

HIRABAYASHI, M ;

MATUHATA, H ;

NEGISHI, A ;

SONG, YS .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1994, 33 (3A) :L300-L303

[4] NEW OXYCARBONATE SUPERCONDUCTORS (CU0.5C0.5)BA2CAN-1CUNO2N+3 (N=3,4) PREPARED AT HIGH-PRESSURE [J].

KAWASHIMA, T ;

MATSUI, Y ;

TAKAYAMAMUROMACHI, E .

PHYSICA C, 1994, 224 (1-2) :69-74

[5] A NEW SERIES OF OXYCARBONATE SUPERCONDUCTORS (CU0.5C0.5)2BA3CAN-1CUNO2N+5(N=4,5) PREPARED AT HIGH-PRESSURE [J].

KAWASHIMA, T ;

MATSUI, Y ;

TAKAYAMAMUROMACHI, E .

PHYSICA C, 1994, 227 (1-2) :95-101

[6]

WALKER D, 1990, AM MINERAL, V75, P1020

[7] NOVEL HOMOLOGOUS SERIES OF SUPERCONDUCTING COPPER OXIDES, CU-12(N-1)N [J].

WU, XJ ;

ADACHI, S ;

JIN, CQ ;

YAMAUCHI, H ;

TANAKA, S .

PHYSICA C, 1994, 223 (3-4) :243-248

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