STRUCTURAL AND PHYSICAL-PROPERTIES OF THE NEW SUPERCONDUCTOR HG0.5PB0.5SR4-XBAXCU2(CO3)O-7-DELTA

被引：14

作者：

HUVE, M

VANTENDELOO, G

HERVIEU, M

MAIGNAN, A

RAVEAU, B

机构：

[1] UNIV ANTWERP,RUCA,EMAT,B-2020 ANTWERP,BELGIUM

[2] UNIV CAEN,ISMRA,CRISMAT,F-14050 CAEN,FRANCE

来源：

PHYSICA C | 1994年 / 231卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(94)90138-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new series of superconducting compounds Hg1-yPbySr4-xBaxCu2(CO3)O-7 has been synthesized. The critical temperature reaches a maximum of 68 K for x = 2; for the x = 1 and y = 0.5 compound, which is mainly studied here, the optimized T-c is around 55 K. All Pb containing compounds exhibit a modulation along the [110] direction, to be attributed to an ordering between (Pb-Hg)O-delta and carbonate groups. This ordering is highly variable depending, among others, on the local CO3 content and gives rise to different commensurate and incommensurate superstructures.

引用

页码：15 / 20

页数：6

共 11 条

[1] A 62-K SUPERCONDUCTOR WITH AN ORIGINAL STRUCTURE - SR4-XBAXTLCU2CO3O7 [J].

GOUTENOIRE, F ;

HERVIEU, M ;

MAIGNAN, A ;

MICHEL, C ;

MARTIN, C ;

RAVEAU, B .

PHYSICA C, 1993, 210 (3-4) :359-366

[2] HIGH-RESOLUTION ELECTRON-MICROSCOPY STUDY OF THE HIGH-TC SUPERCONDUCTOR TL0.5PB0.5SR4CU2CO3O7 [J].

HERVIEU, M ;

MICHEL, C ;

HUVE, M ;

MARTIN, C ;

MAIGNAN, A ;

RAVEAU, B .

MICROSCOPY MICROANALYSIS MICROSTRUCTURES, 1993, 4 (01) :41-50

[3] A 70-K SUPERCONDUCTOR - THE OXYCARBONATE TL0.5PB0.5SR4CU2(CO3)O7 [J].

HUVE, M ;

MICHEL, C ;

MAIGNAN, A ;

HERVIEU, M ;

MARTIN, C ;

RAVEAU, B .

PHYSICA C, 1993, 205 (3-4) :219-224

[4]

HUVE M, IN PRESS

[5] SYNTHESIS AND SUPERCONDUCTIVITY OF OXYCARBONATES OF THE TL-1201 PHASE [J].

KIKUCHI, M ;

OHSHIMA, E ;

OHNISHI, N ;

MURAOKA, Y ;

NAKAJIMA, S ;

AOYAGI, E ;

OGAWA, M ;

AKIMITSU, J ;

OKU, T ;

HIRAGA, K ;

SYONO, Y .

PHYSICA C, 1994, 219 (1-2) :200-204

[6] A 55 K SUPERCONDUCTING COPPER OXYCARBONATE - TL1-XBIXSR4CU2CO3O7 [J].

MAIGNAN, A ;

HUVE, M ;

MICHEL, C ;

HERVIEU, M ;

MARTIN, C ;

RAVEAU, B .

PHYSICA C, 1993, 208 (1-2) :149-154

[7] LEAD-MERCURY-BASED SUPERCONDUCTORS - THE 1212-CUPRATE PB0.7HG0.3SR2+XCA0.7ND0.3-XCU2O7-DELTA AND THE NEW OXYCARBONATE PB0.7HG0.3SR4CU2CO3O7 [J].

MARTIN, C ;

HERVIEU, M ;

HUVE, M ;

MICHEL, C ;

MAIGNAN, A ;

VANTENDELOO, G ;

RAVEAU, B .

PHYSICA C, 1994, 222 (1-2) :19-26

[8] INCOMMENSURATE AND COMMENSURATE SUPERSTRUCTURES IN THE OXYCARBONATE SUPERCONDUCTOR TLSR4-XBAXCU2(CO3)O-Y(X-APPROXIMATE-TO-2) [J].

MATSUI, Y ;

OGAWA, M ;

UEHARA, M ;

NAKATA, H ;

AKIMITSU, J .

PHYSICA C, 1993, 217 (3-4) :287-293

[9] THE BISMUTH OXYCARBONATE BI2SR4CU2CO3O8 - A NEW SUPERCONDUCTOR WITH A TC(ONSET) OF 30-K [J].

PELLOQUIN, D ;

CALDES, M ;

MAIGNAN, A ;

MICHEL, C ;

HERVIEU, M ;

RAVEAU, B .

PHYSICA C, 1993, 208 (1-2) :121-129

[10] THE BISMUTH OXYCARBONATE BI2SR6-XCU3O10(CO3)2 - A NEW 40-K SUPERCONDUCTOR, 2ND MEMBER OF THE SERIES (BI2SR2CUO6)N(SR2CUO2CO3)N' [J].

PELLOQUIN, D ;

MAIGNAN, A ;

CALDES, M ;

HERVIEU, M ;

MICHEL, C ;

RAVEAU, B .

PHYSICA C, 1993, 212 (1-2) :199-205

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