The evolution of spin-glass behavior in hexagonal Lu1-xCaxMnO3 single crystals

被引：4
|
作者：
Cheng, Pengyu [1 ]
Sun, Wei [1 ,3 ,4 ]
Fang, Yifei [2 ]
Kang, Baojuan [1 ]
Lv, Wenlai [1 ]
Xiao, Qiling [1 ]
Zhang, Jincang [1 ]
Chen, Fei [1 ]
机构：
[1] Shanghai Univ, Mat Genome Inst, Shanghai 200444, Peoples R China
[2] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China
[3] Fudan Univ, Dept Phys, State Key Lab Surface Phys, Lab Adv Mat, Shanghai 200433, Peoples R China
[4] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab High Power Laser Mat, Shanghai 201800, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2020年 / 46卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Perovskite; Rare earth manganite; Magnetic property; Spin-glass behavior; MAGNETOCALORIC BEHAVIOR; GRIFFITHS PHASE; MANGANITES; MAGNETISM; RMNO3; CA; HO; ER; LN;
D O I：
10.1016/j.ceramint.2020.03.145
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this research, we have successfully synthesized Lu1-xCaxMnO3 (x = 0.1, 0.3, and 0.5) single crystal samples with space group P6(3)cm, and studied their magnetic properties with multiple methods. On the basis of AC susceptibility and magnetic relaxation rate, we can reveal the evolution of spin-glass (SG) behavior, which occurs in Ca doping with x = 0.1 and x = 0.3 and disappears at x = 0.5. Such SG behavior is induced by the competition between super-exchange and double-exchange interactions among Mn ions and the magnetic transition occurs at about 100 K. This study would be helpful to study the magnetism in RMnO3 compounds and the SG behavior in multi-valence doping.
引用
收藏
页码：15958 / 15962
页数：5
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