Effect of impurity on magnetic phase of spin-Peierls system; Magnetization of Cu1-xZnxGeO3

被引：21

作者：

Hase, M

Sasago, Y

Terasaki, I

Uchinokura, K

Kido, G

Hamamoto, T

机构：

[1] UNIV TOKYO, DEPT APPL PHYS, BUNKYO KU, TOKYO 113, JAPAN

[2] NATL RES INST MET, TSUKUBA, IBARAKI 305, JAPAN

[3] TOHOKU UNIV, INST MAT RES, AOBA KU, SENDAI, MIYAGI 980, JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1996年 / 65卷 / 01期

关键词：

spin-Peierls system; CuGeO3; magnetic phase; soliton; impurity effect; magnetization;

D O I：

10.1143/JPSJ.65.273

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetizations of spin-Peierls cuprates Cu1-xZnxGeO3 with x=0, 0.005, 0.010, and 0.020 were measured in order to investigate influence of impurities on a magnetic phase. A characteristic change of the magnetization related to a phase transition from dimerized to other phases was seen below a spin-Peierls-transition temperature. The magnetization above 16.0 T shows weak x and temperature dependences. a critical field associated with the phase transition decreases with increasing x. We derived a result that the effects of impurities on the magnetic phase are weaker than on the dimerized phase.

引用

页码：273 / 279

页数：7

共 45 条

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