Exchange coupling-induced uniaxial anisotropy in La0.7Sr0.3MnO3 thin films
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- 作者：Liang Wu ; Jing Ma ; Ji Ma ; Yujun Zhang ; Ya Gao ; Qinghua Zhang ; Ming Liu…
- 关键词：La0.7Sr0.3MnO3 ; Dead layer ; Magnetic anisotropy ; Double ; shifted magnetization
- 刊名：Chinese Science Bulletin
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：61
- 期：2
- 页码：157-162
- 全文大小：2,951 KB
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Jing Ma (1)
Ji Ma (1)
Yujun Zhang (1)
Ya Gao (1)
Qinghua Zhang (1)
Ming Liu (2)
Ce-Wen Nan (1)
1. State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
2. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Xi’an Jiaotong University, Xi’an, 710049, China - 刊物主题：Science, general; Life Sciences, general; Physics, general; Chemistry/Food Science, general; Earth Sciences, general; Engineering, general;
- 出版者：Springer Berlin Heidelberg
- ISSN：1861-9541
文摘
Establishing a deeper understanding of the anisotropy in manganites is useful for tailoring their magnetic properties for device applications. Here we showed that ferromagnetic La0.7Sr0.3MnO3 (LSMO) thin films, epitaxially grown on SrTiO3 (STO) substrates, exhibited unexpected double-shifted magnetization curves originating from the competition between common biaxial and emergent uniaxial anisotropies. This emergent uniaxial anisotropy could be induced by exchange coupling between the ferromagnetic LSMO and an antiferromagnetic LSMO dead layer at the LSMO/STO interface, which could be manipulated by the degree of oxygen deficiency. Keywords La0.7Sr0.3MnO3 Dead layer Magnetic anisotropy Double-shifted magnetization