Structural instability around Tc observed in Hg-1201 by neutron powder diffraction and EXAFS

被引：14

作者：

Bordet, P

Duc, F

Radaelli, PG

Lanzara, A

Saini, N

Bianconi, A

Antipov, EV

机构：

[1] ILL GRENOBLE,F-38042 GRENOBLE 9,FRANCE

[2] UNIV ROMA LA SAPIENZA,DIPARTIMENTO FIS,I-00185 ROME,ITALY

[3] MOSCOW MV LOMONOSOV STATE UNIV,DEPT CHEM,MOSCOW 119899,RUSSIA

[4] EUROPEAN SYNCHROTRON RADIAT FACIL,F-38043 GRENOBLE,FRANCE

来源：

PHYSICA C | 1997年 / 282卷

关键词：

D O I：

10.1016/S0921-4534(97)90649-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The structure of HgBa2CuO4+partial derivative is studied as function of temperature by neutron diffraction and Cu-Kedge EXAFS on the same powder sample with Tc=97K. Both techniques reveal the presence of an anomalous behaviour of the Cu-O in-plane bond length starting at approximate to 140K.

引用

页码：1081 / 1082

页数：2

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