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

页码：711 / 712

页数：2

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