COEXISTENCE OF SUPERCONDUCTIVITY AND ANTI-FERROMAGNETIC ORDER IN SMRH4B4

被引：116

作者：

HAMAKER, HC

WOOLF, LD

MACKAY, HB

FISK, Z

MAPLE, MB

机构：

[1] Institute for Pure, Applied Physical Sciences University of California, San Diego, La Jolla

来源：

SOLID STATE COMMUNICATIONS | 1979年 / 32卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0038-1098(79)90949-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The ternary rare earth compound SmRh4B4 has been studied by means of upper critical field, low temperature specific heat, and static magnetic susceptibility measurements. A lambda-type specific heat anomaly, a discontinuity in the slope of the upper critical field versus temperature curve, and a cusp-like feature in the magnetic susceptibility suggest that superconductivity and long-range antiferromagnetic order coexist in SmRh4B4 below 0.87 K. Machida's theory for antiferromagnetic superconductors provides a good description of the upper critical field data, while the magnetic susceptibility data can be represented as the sum of a Curie-Weiss term with microeff = 0.632 microB and θp = -1.93 K and a temperature independent Van Vleck contribution. © 1979.

引用

页码：289 / 294

页数：6