Electronic Transport and Magnetic Properties in Y0.125Ca0.875MnO3 Manganite

被引：2
|
作者：
Chen, Zhenping [1 ]
Su, Yuling [1 ,2 ]
Li, Yuefeng [2 ]
Liu, Dewei [1 ]
Wang, Chunmei [1 ]
Zhang, Jincang [1 ,2 ]
机构：
[1] Zhengzhou Univ Light Ind, Dept Phys, Zhengzhou 450002, Peoples R China
[2] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2009年 / 45卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Electric transport; ferromagnetic spin-glass; magnetic properties; rare-earth-like manganite; SPIN-GLASS;
D O I：
10.1109/TMAG.2009.2018917
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A rare-earth-like manganite Y0.125Ca0.875MnO3 was systemically studied by the structure, electric and magnetic measurement. The results show that there exists a considerable magnetoresistance effect in this system. And two transitions are found on electrical transport corresponding to conventional metal-insulator (M-I) transition and Kondo-like behavior. From the magnetization in the zerofield-cooled (ZFC) and field-cooled (FC), a large irreversibility was observed with a cusp at 108 K about considered as spin-glass freezing temperature. Below 108 K, a coexistence of ferromagnetic spin-glass and ferromagnetic ordering phase appears, which indicates a long-range ferromagnetic behavior in spin-glass state. These suggest an intrinsic ferromagnetic spin-glass state in the Y0.125Ca0.875MnO3 system at low temperatures and may be suppressed with applied higher field of about 8.0 Tesla.
引用
收藏
页码：2616 / 2619
页数：4
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