Controllable magnetization and resistivity jumps of manganite thin films on BaTiO3 substrate

Wengang Wei; Jinjie Chen; Kai Zhang; Yunfang Kou; Kai Du; Yinyan Zhu; Wenbin Wang; Xiaolong Li; Xingmin Zhang; Xingyu Gao; Lei Zhang; Mingliang Tian; Denglu Hou; Lifeng Yin; Jian Shen

doi:10.1063/1.4936245

AIP Advances (Nov 2015)

Controllable magnetization and resistivity jumps of manganite thin films on BaTiO3 substrate

Wengang Wei,
Jinjie Chen,
Kai Zhang,
Yunfang Kou,
Kai Du,
Yinyan Zhu,
Wenbin Wang,
Xiaolong Li,
Xingmin Zhang,
Xingyu Gao,
Lei Zhang,
Mingliang Tian,
Denglu Hou,
Lifeng Yin,
Jian Shen

Affiliations

Wengang Wei: State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
Jinjie Chen: State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
Kai Zhang: State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
Yunfang Kou: State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
Kai Du: State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
Yinyan Zhu: State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
Wenbin Wang: State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
Xiaolong Li: Shanghai Synchrotron Radiation Facility (SSRF), Shanghai 201204, China
Xingmin Zhang: Shanghai Synchrotron Radiation Facility (SSRF), Shanghai 201204, China
Xingyu Gao: Shanghai Synchrotron Radiation Facility (SSRF), Shanghai 201204, China
Lei Zhang: High Magnetic Field Laboratory, Chinese Academy of Science, Hefei 230031, China
Mingliang Tian: High Magnetic Field Laboratory, Chinese Academy of Science, Hefei 230031, China
Denglu Hou: College of Physics Science and Information Engineering, Hebei Normal University, Shijiazhuang 050024, China
Lifeng Yin: State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
Jian Shen: State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China

DOI: https://doi.org/10.1063/1.4936245
Journal volume & issue: Vol. 5, no. 11
pp. 117135 – 117135-7

Abstract

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Manganites thin films grown on ferroelectric BaTiO3 (BTO) exhibit dramatic jumps for both magnetization and resistivity upon cooling in accordance with the temperature-dependent structural transitions of the BTO substrate. Both upward and downward jumps have been reported at the same temperature point where BTO undergoes a structural transition from monoclinic to rhombohedral. Using La5/8Ca3/8MnO3/BaTiO3 as protype system, we solve the puzzle by showing that the direction of the jumps can be controlled by applying an electric field during post growth cooling which determines the orientation of the c-axis of the BTO substrate at room temperature. This offers a convenient way to control the magnetic and transport behavior of manganites films using electric field.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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