Three-dimensional strain state and spacer thickness-dependent properties of epitaxial Pr_(0.7)Sr_(0.3)MnO_3/La_(0.5)Ca_(0.5)MnO_3/Pr_(0.7)Sr_(0.3)MnO_3 trilayer structure

Haiou Wang; Jie Zhang; Quanjie JiaFeng XuWeishi TanDexuan HuoJu Gao

首页> 外文期刊>Journal of Applied Physics >Three-dimensional strain state and spacer thickness-dependent properties of epitaxial Pr_(0.7)Sr_(0.3)MnO_3/La_(0.5)Ca_(0.5)MnO_3/Pr_(0.7)Sr_(0.3)MnO_3 trilayer structure

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Three-dimensional strain state and spacer thickness-dependent properties of epitaxial Pr_(0.7)Sr_(0.3)MnO_3/La_(0.5)Ca_(0.5)MnO_3/Pr_(0.7)Sr_(0.3)MnO_3 trilayer structure

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Epitaxial colossal magnetoresistive trilayer structures consisting of ferromagnetic metallic Pr_(0.7)Sr_(0.3)MnO_3 (PSMO) and antiferromagnetic insulator La_(0.5)Ca_(0.5)MnO_3 (LCMO) were fabricated on (001)-oriented single crystal MgO substrates using pulsed laser deposition technique. The evolution of three-dimensional strain states and electrical and magnetic transport properties of PSMO/LCMO/PSMO trilayers have been studied as a function of LCMO spacer thickness and lattice strain. When the thickness of LCMO spacer is 6 nm, lattice strain in the trilayer begins to be relaxed. Furthermore, trilayers with thickness of LCMO spacer up to 36 nm are not fully strain relaxation. The unit cell volume of the films is not conserved and exhibits the variation with LCMO layer thickness. Strain relaxation states are determined by bulk strain (ε_B) and Jahn-Teller (ε_(JT)) strain together. The electrical and magnetic transport properties, including metal-insulator transition temperatures T_(MI) and saturation magnetization M_S, also show systematic variations with respect to LCMO layer thickness.

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来源
《Journal of Applied Physics》 |2014年第23期|233911-1-233911-7|共7页
作者
Haiou Wang; Jie Zhang; Quanjie JiaFeng XuWeishi TanDexuan HuoJu Gao;
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作者单位

Institude of Material Physics, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, China;

Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039, China;

Department of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaKey Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, ChinaDepartment of Physics, The University of Hong Kong, Hong Kong, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种英语
中图分类应用物理学;
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Three-dimensional strain state and spacer thickness-dependent properties of epitaxial Pr_(0.7)Sr_(0.3)MnO_3/La_(0.5)Ca_(0.5)MnO_3/Pr_(0.7)Sr_(0.3)MnO_3 trilayer structure

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