Magnetic properties of the superconducting and nonsuperconducting spin ladders (Sr,Ca)14Cu24O41

被引：4
|
作者：
Szymczak, R
Szymczak, H
Leonyuk, L
Babonas, GJ
机构：
[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland
[2] Moscow State Univ, Moscow, Russia
[3] Lithuania Acad Sci, Inst Semicond Phys, LT-2600 Vilnius, Lithuania
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1998年 / 177卷
关键词：
susceptibility; -; paramagnetic; low-dimensional systems; magnetic excitations; superconductivity; high-T-c;
D O I：
10.1016/S0304-8853(97)00301-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetic measurements have been performed on the S = 1/2 quasi-one dimensional system of(Sr,Ca)(14)Cu24O41, which has both simple chains and two-legged ladders of copper ions. The total susceptibility of studied compounds has been shown to be anisotropic with anisotropy coming mainly from the Curie-Weiss term. The chains have a spin gap in the excitation spectrum, which originates from a dimerized state. Substantial doping of the system leads to super conductivity with a high critical temperature. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：711 / 712
页数：2
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