A 94-K HG-BASED SUPERCONDUCTOR WITH A 1212 STRUCTURE HG0.5BI0.5SR2CA1-XRXCU2O6+DELTA (R = ND, Y, PR)

被引：63

作者：

PELLOQUIN, D ^{[1
]}

HERVIEU, M ^{[1
]}

MICHEL, C ^{[1
]}

VANTENDELOO, G ^{[1
]}

MAIGNAN, A ^{[1
]}

RAVEAU, B ^{[1
]}

机构：

[1] UNIV CAEN,F-14050 CAEN,FRANCE

来源：

PHYSICA C | 1993年 / 216卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(93)90069-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new mercury-bismuth-based cuprate, Hg0.5Bi0.5Sr2Ca1-xNdxCu2O6+delta has been synthesized for x ranging from 0.35 to 1. The high-resolution electron microscopy and the X-ray diffraction analyses give evidence for a 1212-type structure, without any ordering between Hg and Bi. For 0.35 less-than-or-equal-to x less-than-or-equal-to 0.5, the samples are superconducting with a T(conset) of 94 K and a diamagnetic volume fraction of 32%. Annealings at low temperatures under different atmospheres do not modify the superconducting behavior. Substitutions of Pr and Y for Nd allow isotypic oxides to be synthesized with similar superconducting properties.

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页码：257 / 263

页数：7

相关论文

共 21 条

[1] NEW MERCURY-BASED SUPERCONDUCTORS WITH THE 1201 STRUCTURE HG0.4PR0.6SR2-XPRXCUO4+DELTA AND HG0.3PB0.7SR2-XLAXCUO4+DELTA [J].

GOUTENIRE, F ;

DANIEL, P ;

HERVIEU, M ;

VANTENDELOO, G ;

MICHEL, C ;

MAIGNAN, A ;

RAVEAU, B .

PHYSICA C, 1993, 216 (3-4) :243-249

[2] SUPERCONDUCTIVITY UP TO 90-K IN A NEW FAMILY OF THE (PB,HG)SR2(CA,Y)CU2O7 SYSTEM [J].

HU, SF ;

JEFFERSON, DA ;

LIU, RS ;

EDWARDS, PP .

JOURNAL OF SOLID STATE CHEMISTRY, 1993, 103 (01) :280-286

[3] BULK SUPERCONDUCTIVITY OF THE (TL0.5BI0.5)(CA1-XYX)SR2CU2OY SYSTEM [J].

HUANG, YT ;

LIU, RS ;

WANG, WN ;

WU, PT .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1989, 28 (09) :L1514-L1517

[4] INFLUENCE OF THE SIZE OF ALKALINE-EARTH CATIONS ON THE STRUCTURAL DISTORTION AND TRANSPORT-PROPERTIES OF THE SEMICONDUCTING 1212-TYPE CUPRATES TLBA2-XSRXLNCU2O7 [J].

HUVE, M ;

MARTIN, C ;

MICHEL, C ;

MAIGNAN, A ;

HERVIEU, M ;

RAVEAU, B .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1993, 54 (02) :145-152

[5]

HUVEM, 1993, J PHYS CHEM SOLIDS, V54, P145

[6] TL0.5PB0.5SR2CUO5 - A NONSUPERCONDUCTOR DESPITE AN OPTIMUM HOLE CONCENTRATION IN THE CU-O SHEETS [J].

KWEI, GH ;

SHI, JB ;

KU, HC .

PHYSICA C, 1991, 174 (1-3) :180-186

[7] PHASE-RELATIONS IN THE COMPOSITION (PB1-YCUY)SR2(LN1-XCAX)CU2O7 AND THE CRYSTAL-STRUCTURE OF LA8-XSRXCU8-YO20 [J].

LEE, JY ;

KIM, JS ;

SWINNEA, JS ;

STEINFINK, H .

JOURNAL OF SOLID STATE CHEMISTRY, 1990, 84 (02) :335-341

[8] STRUCTURAL-CHANGES ACCOMPANYING OXYGEN INCORPORATION IN (PB0.65CU0.35)SR2(Y0.7CA0.3)CU2O7+DELTA [J].

MAEDA, T ;

SAKUYAMA, K ;

IZUMI, F ;

YAMAUCHI, H ;

ASANO, H ;

TANAKA, S .

PHYSICA C, 1991, 175 (3-4) :393-400

[9] A NEW 1212 MERCURY-BASED 90-K SUPERCONDUCTOR - Y0.6CA0.4BA2[HG1-XMX]O6+Y [J].

MAIGNAN, A ;

VANTENDELOO, G ;

HERVIEU, M ;

MICHEL, C ;

RAVEAU, B .

PHYSICA C, 1993, 212 (1-2) :239-244

[10] SUPERCONDUCTIVITY UP TO 110-K IN THE 1212-HG BASED CUPRATE ND1-XCAXBA2HG1-X'CU2+X'O6+Y [J].

MAIGNAN, A ;

MICHEL, C ;

VANTENDELOO, G ;

HERVIEU, M ;

RAYEAU, B .

PHYSICA C, 1993, 216 (1-2) :1-5