A NEW SERIES OF HIGH T-C SUPERCONDUCTORS ALSR2CAN-1CUNO2N+3 (N=4, T-C=110 K N=5, T-C=83 K) PREPARED AT HIGH-PRESSURE

被引：36

作者：

ISOBE, M ^{[1
]}

KAWASHIMA, T ^{[1
]}

KOSUDA, K ^{[1
]}

MATSUI, Y ^{[1
]}

TAKAYAMAMUROMACHI, E ^{[1
]}

机构：

[1] NATL INST RES INORGAN MAT,TSUKUBA,IBARAKI 305,JAPAN

来源：

PHYSICA C | 1994年 / 234卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(94)90063-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new series of high-T-c superconductors AlSr2Can-1CunO2n+3 (Al-12(n-1)n) was prepared at high pressure of 5.5 GPa and 1250 degrees C, whose members are the first superconductors including Al as a main component. Two members with n=4, 5 were obtained in bulk and the former showed superconducting transition at 110 K while the latter at 83 K. They had tetragonal cells with a=3.839(1), c=17.72(1) Angstrom for n=4 and a=3.845(1), c=20.87(1) Angstrom for n=5. HRTEM observations indicated that they are essentially isomorphous with the T1 (or Hg)-based superconductors, T1 (Hg)-1234 and 1245, respectively. Significant intergrowths of phases with different n values up to n=8 were observed in A1-1245.

引用

页码：120 / 126

页数：7

共 12 条

[1] NEW FAMILY OF SUPERCONDUCTING COPPER OXIDES - GASR2LN1-XCAXCU2O7 [J].

DABROWSKI, B ;

RADAELLI, P ;

HINKS, DG ;

MITCHELL, AW ;

VAUGHEY, JT ;

GROENKE, DA ;

POEPPELMEIER, KR .

PHYSICA C, 1992, 193 (1-2) :63-67

[2] PREPARATION AND PROPERTIES OF YSR2CU3-XMXOY (M = LI, AL, TI, V, CR, FE, CO, GA, GE, MO, W AND RE) [J].

DEN, T ;

KOBAYASHI, T .

PHYSICA C, 1992, 196 (1-2) :141-152

[3]

HOWARD SA, 1989, MODERN POWDER DIFFRA, V20, pCH8

[4] NEUTRON POWDER DIFFRACTION STUDY OF THE CRYSTAL-STRUCTURE OF YSR2COCU2O7 AND Y1-XCAXSR2COCU2O7 [J].

HUANG, Q ;

CAVA, RJ ;

SANTORO, A ;

KRAJEWSKI, JJ ;

PECK, WF .

PHYSICA C, 1992, 193 (1-2) :196-206

[5] HIGH-PRESSURE SYNTHESIS OF Y1-XCAXSR2GACU2O7-PLUS-OR-MINUS-DELTA (0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-1.0) [J].

ISOBE, M ;

MATSUI, Y ;

TAKAYAMAMUROMACHI, E .

PHYSICA C, 1994, 222 (3-4) :310-316

[6] 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

[7] 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

[8]

ROTH G, 1991, J PHYS I, V1, P721, DOI 10.1051/jp1:1991165

[9] SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF YSR2CU3-XMXO7+/-Y(M=FE,TI,AL,CO,GA,PB-0.5-LESS-THAN-X-LESS-THAN-1), AND THE NONEXISTENCE OF THE PARENT PHASE YSR2CU3O7 [J].

SLATER, PR ;

GREAVES, C .

PHYSICA C, 1991, 180 (5-6) :299-306

[10] Stabilization of Strontium Analogues of Barium Yttrium Cuprate Perovskites via Chemical Substitution [J].

Sunshine, S. A. ;

Schneemeyer, L. F. ;

Siegrist, T. ;

Douglass, D. C. ;

Waszczak, J., V ;

Cava, R. J. ;

Gyorgy, E. M. ;

Murphy, D. W. .

CHEMISTRY OF MATERIALS, 1989, 1 (03) :331-335

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