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Fe ion doping effects on structure, magnetic and transport properties of La0.7Ca0.3Mn1-xFexO3 (0 ≤ x ≤ 0.10) thin films on Si substrates
被引:2
|作者:
Xue, Fen
[1
,2
]
Chen, Ying
[2
]
Cheng, Jinrong
[1
]
Wang, Genshui
[2
]
Lian, Jianyun
[2
]
Xiao, Ling
[2
]
Zhu, Mingkang
[2
]
Guo, Xin
[2
]
Wen, Zhiyu
[3
]
Dong, Xianlin
[2
]
机构:
[1] Shanghai Univ, Sch Mat Sci & Engn, 99 Shangda Rd, Shanghai 200444, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Devices, 1295 Ding Xi Rd, Shanghai 200050, Peoples R China
[3] Chongqing Univ, Key Discipline Lab New Micro Nano Device & Syst T, 174 Shazheng Rd, Chongqing 400030, Peoples R China
关键词:
Thin films;
Magnetic materials;
Manganite;
Curie temperature;
Magnetoresistance;
MAGNETORESISTANCE;
PEROVSKITES;
D O I:
10.1016/j.matlet.2016.05.128
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
The La0.7Ca0.3Mn1-xFexO3 (LCMFO: 0 <= x <= 0.10) thin films were synthesized by chemical solution deposition process on Si substrates. The structure, magnetic and transport properties have been investigated systematically. With the increase of Fe ion doping concentration, from x=0 to x=0.10, no apparent structural change was observed. While, the magnetization and Curie temperature were reduced dramatically, from 168 emu/cm(3) and 231 K for x=0-18 emu/cm(3) and 81 K for x=0.10, indicating that Fe ion suppressed the double-exchange mechanism and enhanced the anti-ferromagnetic ordering. Meanwhile, the resistance was very sensitive to Fe ion doping and an enhanced magnetoresistance (-94%) was observed in the sample of x=0.05. (C) 2016 Elsevier B.V. All rights reserved.
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页码:148 / 151
页数:4
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