Mossbauer spectroscopic study of pressure-induced magnetisation in wiistite (FeO)

被引:30
作者
Kantor, IY [1 ]
McCammon, CA [1 ]
Dubrovinsky, LS [1 ]
机构
[1] Univ Bayreuth, Bayer Geoinst, D-95440 Bayreuth, Germany
基金
俄罗斯基础研究基金会;
关键词
Mossbauer spectroscopy; wustite (FeO); neel transition; diamond anvil cell; high pressure;
D O I
10.1016/j.jallcom.2003.11.159
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A room temperature high pressure in situ Mossbauer study of wustite Fe0.94O was carried out in a diamond anvil cell under hydrostatic conditions at pressures up to 13.5(1) GPa. At room temperature magnetic ordering (Neel transition) occurs at 5.0(5) GPa, which differs significantly from the pressure reported in the literature (ca. 15 GPa) for the phase transformation from the sodium chloride structure (B1) to a rhombohedral structure. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:5 / 8
页数:4
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