FE-57 MOSSBAUER STUDY OF SRFEO3 UNDER ULTRA-HIGH PRESSURE

被引：16

作者：

NASU, S ^{[1
]}

ABE, T ^{[1
]}

YAMAMOTO, K ^{[1
]}

ENDO, S ^{[1
]}

TAKANO, M ^{[1
]}

TAKEDA, Y ^{[1
]}

机构：

[1] OSAKA UNIV,EXTREME MAT RES CTR,TOYONAKA,OSAKA 560,JAPAN

来源：

HYPERFINE INTERACTIONS | 1991年 / 67卷 / 1-4期

关键词：

D O I：

10.1007/BF02398196

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Fe-57 Mossbauer absorption spectra under ultra-high pressure up to 53 GPa have been measured using a diamond anvil cell for SrFeO2.97 which is one of the typical Fe4+ oxides having a cubic perovskite structure. External high pressure up to 53 GPa makes no indication of structural transformation and does not show any change in valence state of iron, however the Neel temperature of 131 K at 0 GP increases to 300 K and the Fe-57 magnetic hyperfine field decreases from 32.9 T at 0 GPa and 6.5 K to 23.3 T at 53 GPa and 300 K.

引用

页码：529 / 532

页数：4

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