Magnetic behavior of Fe and Tm in Zn-Fe-Sc-Tm icosahedral quasicrystals

被引：2

作者：

Kashimoto, Shiro ^{[1
]}

Masuda, Chihiro ^{[1
]}

Ishimasa, Tsutomu ^{[1
]}

机构：

[1] Hokkaido Univ, Grad Sch Engn, Div Appl Phys, Kita Ku, Sapporo, Hokkaido 0608628, Japan

来源：

ZEITSCHRIFT FUR KRISTALLOGRAPHIE | 2009年 / 224卷 / 1-2期

关键词：

Icosahedral quasicrystals; Zn-Fe-Sc-Tm alloy; Curie-Weiss paramagnetism; Spin glass; HO;

D O I：

10.1524/zkri.2009.1111

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The magnetic properties of p-type Zn77Fe7Sc16-xTmx (x = 0, 1, 2, 4 and 6) icosahedral quasicrystals have been investigated. The magnetic susceptibility of these samples obeys Curie-Weiss paramagnetism in 72-300 K. The estimated Curie constants indicated that 3d Fe magnetic moments also exist besides 4f Tm in these quasicrystals. In the lower temperature region, spin glass-like behavior was observed for all samples with freezing temperature 7.0-9.5 K. For samples with higher concentration of Tm, namely x = 2, 4 and 6, the magnetic susceptibility increase as temperature decrease below the freezing temperature. This behavior indicates weak antiferromagnetic interaction between 4f Tm magnetic moments.

引用

页码：59 / 63

页数：5