Electrostatic Shaping of Magnetic Transition Regions in La0.7Sr0.3MnO3

被引：2

作者：

Lan, Qianqian ^{[1
,2
]}

Wang, Chuanshou ^{[3
]}

Jin, Lei ^{[1
]}

Schnedler, Michael ^{[1
]}

Freter, Lars ^{[1
]}

Fischer, Kurt ^{[4
]}

Caron, Jan ^{[1
]}

Wei, Xian-Kui ^{[1
]}

Denneulin, Thibaud ^{[1
]}

Kovacs, Andras ^{[1
]}

Ebert, Philipp ^{[1
]}

Zhong, Xiaoyan ^{[5
,6
,7
,8
]}

Dunin-Borkowski, Rafal E. ^{[1
]}

机构：

[1] Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electrons ER C, D-52425 Julich, Germany

[2] Tsinghua Univ, Natl Ctr Electron Microscopy Beijing, Sch Mat Sci & Engn, Key Lab Adv Mat MOE, Beijing 100084, Peoples R China

[3] Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China

[4] Tokuyama Coll, Natl Inst Technol, Dept Mech & Elect Engn, Shunan, Yamaguchi 7458585, Japan

[5] City Univ Hong Kong, TRACE EM Unit, Kowloon, Hong Kong 999077, Peoples R China

[6] City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, Hong Kong 999077, Peoples R China

[7] City Univ Hong Kong, Shenzhen Futian Res Inst, Shenzhen 518048, Peoples R China

[8] City Univ Hong Kong, Shenzhen Res Inst, Nanomfg Lab, Shenzhen 518057, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2022年 / 129卷 / 05期

基金：

欧洲研究理事会; 欧盟地平线“2020”;

关键词：

DOMAIN-WALL;

D O I：

10.1103/PhysRevLett.129.057201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a magnetic transition region in La0.7Sr0.3MnO3 with gradually changing magnitude of magnetization, but no rotation, stable at all temperatures below T-C. Spatially resolved magnetization, composition and Mn valence data reveal that the magnetic transition region is induced by a subtle Mn composition change, leading to charge transfer at the interface due to carrier diffusion and drift. The electrostatic shaping of the magnetic transition region is mediated by the Mn valence, which affects both magnetization by Mn3+-Me4+ double exchange interaction and free carrier concentration.

引用

页数：6

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