Pressure effect on the elastic constants of magnetite

被引：9

作者：

Isida, S

Suzuki, M

Todo, S

Mori, N

Siratori, K

机构：

[1] UNIV ELECTROCOMMUN, DIV NAT SCI, CHOFU, TOKYO 182, JAPAN

[2] UNIV TOKYO, INST SOLID STATE PHYS, MINATO KU, TOKYO 106, JAPAN

[3] KYUSHU UNIV, FAC SCI, HIGASHI KU, FUKUOKA 812, JAPAN

来源：

PHYSICA B-CONDENSED MATTER | 1996年 / 219-20卷

关键词：

D O I：

10.1016/0921-4526(95)00837-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In order to investigate the low temperature transition of magnetite (Fe3O4) around T-v similar to 123 K, the longitudinal sound velocity has been measured above T-v under hydrostatic pressures Lip to 12 kbar. We observed that the sound velocity nu([110]) shows no pressure dependence, while the elastic constant C-11, which is calculated from nu([100]), has a large softening with increasing pressure below 250 K. The amount of softening of C-11 by applying pressure seems to obey the Curie-Weiss law with theta approximate to 120 K except near T-v.

引用

页码：638 / 640

页数：3

共 6 条

[1] DIFFUSE ELECTRON-SCATTERING FROM MAGNETITE ABOVE VERWEY TRANSITION-TEMPERATURE [J].