Strong correlation effects and new phase transition at high pressure-low temperature in La0.5Ba0.5FeO3

被引：14
作者：
Zhang, Shile [1 ]
Tan, Shun [1 ,2 ]
Pi, Li [1 ,2 ]
Zhang, Yuheng [1 ]
机构：
[1] Univ Sci & Technol China, High Magnet Field Lab, Hefei 23026, Peoples R China
[2] Univ Sci & Technol China, Hefei Natl Labo Phys Sci Microscale, Hefei 23026, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2010年 / 322卷 / 21期
关键词：
Charge disproportionation; Pressure effect; Spin state transition; OXYGEN-DEFICIENT PEROVSKITE; CHARGE DISPROPORTIONATION; MAGNETIC-PROPERTIES; MOSSBAUER; CAFEO3; STATES; FE-57; ORDER;
D O I：
10.1016/j.jmmm.2010.06.031
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The physical properties of La0.5Ba0.5FeO3 perovskite have been investigated. The resistivity and magnetism change at around the charge disproportionation temperature. The ferromagnetic cluster-glass state appears when T < 115 K. Under 5 kbar pressure a new phase transition at 5.5 K is found in the magnetization measurement. The transition temperature increases with the increase of the applied pressure. It is suggested that this transition is induced by the spin state transition from to with the pressure increase. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：3381 / 3384
页数：4
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