INCOMMENSURATE MODULATED STRUCTURE IN YSR2CU2.5B0.5OY

被引：28

作者：

LI, JQ ^{[1
]}

ZHU, WJ ^{[1
]}

ZHAO, ZX ^{[1
]}

YIN, DL ^{[1
]}

机构：

[1] BEIJING UNIV,DEPT PHYS,BEIJING,PEOPLES R CHINA

来源：

SOLID STATE COMMUNICATIONS | 1993年 / 85卷 / 09期

关键词：

Barium - Ceramic materials - Copper oxides - Doping (additives) - Electron diffraction - Strontium - Superconductivity - Yttrium compounds;

D O I：

10.1016/0038-1098(93)90662-7

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The structural features of Y(Ba,Sr)2Cu2.5B0.5Oy materials were studied by means of electron diffraction and high resolution electron microscopy. A new incommensurate modulated structure has been found in the YSr2Cu2.5B0.5Oy compound. The average structure of YSr2Cu2.5B0.5Oy is orthorhombic with cell parameters a=0.383nm. b=0.381nm and c=1.096nm. The modulation is located in the (100) plane with the wave vector q=c*/2 + b*/4.81. Ba doping at the Sr sites induces superconductivity in this system. and causes the change of this modulation.

引用

页码：739 / 741

页数：3

共 5 条

[1] NEW FAMILY OF SUPERCONDUCTING COPPER OXIDES - BI CUPRATES OF TYPE-1212 [J].

EHMANN, A ;

KEMMLERSACK, S ;

LOSCH, S ;

SCHLICHENMAIER, M ;

WISCHERT, W ;

ZOLLER, P ;

NISSEL, T ;

HUEBENER, RP .

PHYSICA C, 1992, 198 (1-2) :1-6

[2]

Li J., UNPUB

[3] HIGH-PRESSURE SYNTHESIS OF PEROVSKITE-DERIVED COMPOUNDS IN THE SR-Y-CU-O SYSTEM [J].

ONO, A .

PHYSICA C, 1992, 198 (3-4) :287-292

[4] HIGH-PRESSURE STUDY ON MO-STABILIZED SR-BASED 123 COMPOUNDS YSR2CU2.8MO0.2OY AND TBSR2CU2.7MO0.3OY [J].

XIONG, Q ;

WANG, YQ ;

CHU, JW ;

SUN, YY ;

MATSUISHI, K ;

FENG, HH ;

HOR, PH ;

CHU, CW .

PHYSICA C, 1992, 198 (1-2) :70-74

[5]

ZHU WJ, UNPUB PHYS C

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