NEW HG BASED OXYCARBONATE SUPERCONDUCTOR HGBA2SR2CU2O6+DELTA(CO3)

被引：36

作者：

UEHARA, M

SAHODA, S

NAKATA, H

AKIMITSU, J

MATSUI, Y

机构：

[1] NAT INST RES INORGAN MAT,IBARAGIG 305,JAPAN

[2] AOYAMA GAKUIN UNIV,DEPT PHYS,SETAGAYA KU,TOKYO 157,JAPAN

来源：

PHYSICA C | 1994年 / 222卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(94)90110-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new Hg based oxycarbonate superconductor HgBa2Sr2Cu2O6+delta(CO3) has been found by resistivity and magnetization measurements. The superconductivity has been observed at 66 K by magnetization measurement. The electron-diffraction and HRTEM studies show that the crystal structure basically consisted of [HgBa2O2+delta] and [Sr2CO3] block layers and has a tetragonal unit cell, with a = 3.88 angstrom, c= 16,94 angstrom, with an orthorhombic superstructure, with A approximately 4.5 square-root a = 24.71 angstrom, B approximately square-root 2a = 5.49 angstrom, C = c = 16.94 angstrom, due to the three times periodic replacements of a CO3 block for HgO(delta) in the same c-planes or to a c/2 shift approximately at intervals of three tetragonal cells along the (110) direction. The crystal structure of this compound is described by the following combination: [(Hg0.5C0.5) (Ba,Sr)2O2.5+delta]+CuO2+[(Ba,Sr)2(C0.5Hg0.5)O2.5+delta+CuO2.

引用

页码：27 / 32

页数：6

共 16 条

[1] SUPERCONDUCTIVITY IN THE NEW COMPOUND (Y1-XCAX)0.95SR2.05CU2.4(CO3)0.6OY [J].

AKIMITSU, J ;

UEHARA, M ;

OGAWA, M ;

NAKATA, H ;

TOMIMOTO, K ;

MIYAZAKI, Y ;

YAMANE, H ;

HIRAI, T ;

KINOSHITA, K ;

MATSUI, Y .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1992, 201 (3-4) :320-324

[2] SYNTHESIS AND STRUCTURE OF SR1.5BA0.5CUO2(CO3) - AN OXYCARBONATE CONTAINING INFINITE CUO2 LAYERS [J].

ARMSTRONG, AR ;

EDWARDS, PP .

JOURNAL OF SOLID STATE CHEMISTRY, 1992, 98 (02) :432-436

[3] SYNTHESIS, STRUCTURE AND ELECTRICAL-PROPERTIES OF SR2CUO2(CO3), AN OXIDE CARBONATE RELATED TO PEROVSKITE [J].

BABU, TGN ;

FISH, DJ ;

GREAVES, C .

JOURNAL OF MATERIALS CHEMISTRY, 1991, 1 (04) :677-679

[4] SYNTHESIS AND CRYSTAL-STRUCTURE OF BASRCUO2+X-BULLET-CO3 [J].

CHAILLOUT, C ;

HUANG, Q ;

CAVA, RJ ;

CHENAVAS, J ;

SANTORO, A ;

BORDET, P ;

HODEAU, JL ;

KRAJEWSKI, JJ ;

LEVY, JP ;

MAREZIO, M ;

PECK, WF .

PHYSICA C, 1992, 195 (3-4) :335-344

[5] 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

[6] 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

[7] 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

[8] PREPARATION AND CRYSTAL-STRUCTURE OF SR2CUO2(CO3) [J].

MIYAZAKI, Y ;

YAMANE, H ;

KAJITANI, T ;

OKU, T ;

HIRAGA, K ;

MORII, Y ;

FUCHIZAKI, K ;

FUNAHASHI, S ;

HIRAI, T .

PHYSICA C, 1992, 191 (3-4) :434-440

[9] (C0.35CU0.65)SR2(Y0.73CE0.27)2CU2OX - A NEW SUPERCONDUCTOR CONTAINING CO3 [J].

MIYAZAKI, Y ;

YAMANE, H ;

KOBAYASHI, N ;

HIRAI, T ;

NAKATA, H ;

TOMIMOTO, K ;

AKIMITSU, J .

PHYSICA C, 1992, 202 (1-2) :162-166

[10] 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

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