SPIN-WAVE BEHAVIOR IN THE MAGNETIZATION OF AN AMORPHOUS FERROMAGNET GD67NI33

被引：7

作者：

NAKAI, I ^{[1
]}

FUKAGAWA, T ^{[1
]}

机构：

[1] OKAYAMA UNIV, FAC SCI, DEPT PHYS, OKAYAMA 700, JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1993年 / 62卷 / 07期

关键词：

AMORPHOUS GD67NI33 FERROMAGNET; MAGNETIZATION; CURIE-WEISS LAW; SPIN WAVE T(3/2) LAW; LOCALIZED ELECTRONS;

D O I：

10.1143/JPSJ.62.2456

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have made precise measurements of the magnetization on an amorphous ferromagnet Gd67Ni33 below 300 K in fields up to 5.27 T. The magnetization obeys the simple spin wave T3/2 law below about 90 K. The spin wave stiffness constant thus obtained is independent of magnetic fields and temperatures. The susceptibility follows the Curie-Weiss law above about 220 K. The amorphous Gd67Ni33 alloy is a typical example of Heisenberg ferromagnet such as amorphous Gd68Cu32 reported previously.

引用

页码：2456 / 2461

页数：6

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