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Get Free AccessThe interface reconstruction in perovskite heterostructures caused by interfacial octahedral tilt/rotation and its effects on the spin, charge, and orbital degrees of freedom is a very attractive topic for correlated oxides. Here, we present a systematic investigation on tensely strained (110)-LaCoO3/La2/3Sr1/3MnO3/LaCoO3 trilayers, focusing on orbital reconstruction and accompanied effects. The most remarkable finding is the reordering of the energy levels of Mn-3d orbitals at the interface: the low-lying orbital becomes dx2-y2 for sandwiched La2/3Sr1/3MnO3 rather than d3z2-r2 as expected for a bare La2/3Sr1/3MnO3 film. Interlayer charge transfer via dx2-y2 orbitals is further detected as a driving force of orbital reconstruction. Due to spin–orbit coupling, the charge/orbital reconstruction produces a chain effect on the spin degree of freedom of the La2/3Sr1/3MnO3 layer, resulting in a dramatic spin reorientation by 90° in a film plane. The present work demonstrates how to tune macroscopic properties of correlated oxides via mutual coupling between different degrees of freedom.
Furong Han, Xiaobing Chen, Jine Zhang, Jing Zhang, Jinghua Song, Hui Zhang, Hongrui Zhang, Xi Yan, Qinghua Zhang, Lin Gu, Yuansha Chen, Fengxia Hu, Baogen Shen, Jirong Sun (2020). Spin reorientation at (110)-La2/3Sr1/3MnO3/LaCoO3 interfaces by orbital/charge reconstruction. , 8(2), DOI: https://doi.org/10.1063/1.5141005.
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Type
Article
Year
2020
Authors
14
Datasets
0
Total Files
0
Language
en
DOI
https://doi.org/10.1063/1.5141005
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