Large Tunability of Physical Properties of Manganite Thin Films by Epitaxial Strain  

作　　者：魏文刚 王辉 张凯 刘皓 寇运芳 陈金杰 杜恺 朱银燕 侯登录 武汝前 殷立峰 沈健 

机构地区：[1]State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433 [2]College of Physics Science and Information Engineering, Hebei Normal University, Shijiazhuang 050024 [3]Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093

出　　处：《Chinese Physics Letters》2015年第8期161-164,共4页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Program of China under Grant Nos 2011CB921800,2013CB932901 and 2014CB921104;the National Natural Science Foundation of China(91121002 and 11274071);Shanghai Municipal Natural Science Foundation(14JC1400500);the Fund of 1000 Talent Program

摘　　要：Physical properties of strongly correlated manganites are known to depend sensitively on lattice parameters. We show that in thin film form, the magnetic and transport properties of manganites can be tuned in a wide range using epitaxial strain. Specifically, by systematically varying the strain from negative to positive, we have observed 65%, -33%, 650%, and -17% changes for the saturation magnetization field Hs, saturation magnetization Ms, resistivity, and metal-insulator transition temperature. We explain these results with density functional theory calculations.Physical properties of strongly correlated manganites are known to depend sensitively on lattice parameters. We show that in thin film form, the magnetic and transport properties of manganites can be tuned in a wide range using epitaxial strain. Specifically, by systematically varying the strain from negative to positive, we have observed 65%, -33%, 650%, and -17% changes for the saturation magnetization field Hs, saturation magnetization Ms, resistivity, and metal-insulator transition temperature. We explain these results with density functional theory calculations.

分 类 号：O484.4[理学—固体物理]