POSSIBLE INDICATION OF FERMI-SURFACE OF YBA2CU3O7 BY POSITRON-ANNIHILATION

被引：13

作者：

HOFFMANN, L

SADOWSKI, W

SHUKLA, A

ADAM, G

BARBIELLINI, B

PETER, M

机构：

[1] Département de la matière Condensée, Université de Genève, CH-1211 Genève 4

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1991年 / 52卷 / 11-12期

关键词：

POSITRON ANNIHILATION SPECTROSCOPY; SUPERCONDUCTIVITY; FERMI SURFACE;

D O I：

10.1016/0022-3697(91)90139-Q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present angular correlation of positron annihilation radiation measurements, performed at three temperatures (20K, 100K and 300K respectively), on a twined metallic YBa2Cu3O7 single crystal. Both in extended and reduced momentum space, a structure appears at high temperature, compatible with the one dimensional Fermi surface of the Cu-O chains.

引用

页码：1551 / 1556

页数：6

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