Research on order phase and second-entering-type spin glass behavior of La0.3 Ca0.7 Mn1-x Vx O3 system

被引：4
|
作者：
Liu Ning [1 ,2 ]
Yan Guo-Qing [2 ]
Mao Qiang [2 ]
Wang Gui-Ying [2 ]
Guo Huan-Yin [1 ]
机构：
[1] Anhui Sci & Technol Univ, Coll Sci, Fengyang 233100, Peoples R China
[2] Suzhou Coll, Anhui Key Lab Spin Electron & Nanomat, Cultivating Base, Suzhou 234000, Peoples R China
来源：
ACTA PHYSICA SINICA | 2010年 / 59卷 / 08期
基金：
中国国家自然科学基金;
关键词：
charge ordering; spin order; phase separation; second-entering-type spin glass behavior; MAGNETOTRANSPORT PROPERTIES; MAGNETIC-PROPERTIES; CHARGE ORDER; MN-SITE;
D O I：
10.7498/aps.59.5759
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The influence of V doping at Mn site on charge order and spin order of La-0.3 Ca-0.7 MnO3 system has been studied by the measurement of magnetization-temperature (M-T) curves, resistivity-temperature (rho-T) curves and electron spin resonance (ESR) spectra of samples La0.3 Ca-0.7 Mn1-x V-x O-3 (x = 0. 05, 0. 10, 0. 134, 0. 20). The results show that, when 0. 05 <= 3 <= 0. 134, charge ordering (CO) phase exists in the system, and the spin order of the system exhibits the serial changes of paramagnetism (PM) - charge ordering (CO) - antiferromagnetism (AFM) with the decrease of temperature. When x = 0. 20, the charge ordering melts, and the system exhibits second-entering-type spin glass behavior.
引用
收藏
页码：5759 / 5765
页数：7
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