Spin-glass state and magnetic-field-induced phenomena in distorted Eu0.58Sr0.42MnO3 perovskite

被引：85
作者：
Sundaresan, A
Maignan, A
Raveau, B
机构：
[1] Laboratoire CRISMAT, ISMRA, 14050 Caen Cedex
来源：
PHYSICAL REVIEW B | 1997年 / 55卷 / 09期
关键词：
D O I：
10.1103/PhysRevB.55.5596
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetic and magnetoresistance measurements were carried out on a distorted perovskite, Eu0.58Sr0.42MnO3. In the absence of applied magnetic field, this compound is an insulator down to 5 K. Results of the ac- and de-susceptibility measurements suggest a spin-glass ground state. An applied field of 7 T drives the insulator ground state to a ferromagnetic metallic state below T-C= 120 K. For a range of intermediate fields, the compound undergoes insulator-metal-insulator transitions which resemble those of 1:1 Mn3+/Mn4+ charge-ordered compounds. A temperature-field phase diagram is established which depicts different magnetic and electronic states.
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页码：5596 / 5599
页数：4
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