Strong room temperature magnetism in highly resistive strained thin films of BiFe0.5Mn0.5O3

被引：40
|
作者：
Choi, E. -M. [1 ]
Patnaik, S. [1 ]
Weal, E. [1 ]
Sahonta, S. -L. [1 ]
Wang, H. [2 ]
Bi, Z. [2 ]
Xiong, J. [3 ]
Blamire, M. G. [1 ]
Jia, Q. X. [3 ]
MacManus-Driscoll, J. L. [1 ,3 ]
机构：
[1] Univ Cambridge, Dept Mat Sci, Cambridge CB2 3QZ, England
[2] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA
[3] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA
来源：
APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 01期
基金：
英国工程与自然科学研究理事会; 美国国家科学基金会;
关键词：
BIMNO3; PEROVSKITE; BIFEO3;
D O I：
10.1063/1.3540683
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report highly resistive strongly ferromagnetic strained thin (similar to 30 nm) films of BiFe0.5Mn0.5O3 (BFMO) grown on (001) SrTiO3 substrates using pulsed laser deposition. The films are tetragonal with high epitaxial quality and phase-purity. The magnetic moment and coercivity values at room temperature are 90 emu/cc (0.58 mu(B)/B-site ion) at H = 3 kOe and 274 Oe, respectively. The magnetic transition temperature is strongly enhanced up to similar to 600 K, which is similar to 500 K higher than for pure bulk BiMnO3. Strained BFMO is a potential room temperature spin filter material for magnetic tunnel devices. (c) 2011 American Institute of Physics. [doi: 10.1063/1.3540683]
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页数：3
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