Correlating interfacial octahedral rotations with magnetism in (LaMnO3+delta)(N)/(SrTiO3)(N) superlattices
Zhai, XF; Cheng, L; Liu, Y; Schlepuetz, CM; Dong, S; Li, H; Zhang, XQ; Chu, SQ; Zheng, LR; Zhang, J; Zhao, AD; Hong, H; Bhattacharya, A; Eckstein, JN; Zeng, CG;储胜启; Zheng LR(郑黎荣); Zhang J(张静)
刊名NATURE COMMUNICATIONS
2014
卷号5页码:4283
学科分类Science & Technology - Other Topics
DOI10.1038/ncomms5283
英文摘要Lattice distortion due to oxygen octahedral rotations have a significant role in mediating the magnetism in oxides, and recently attracts a lot of interests in the study of complex oxides interface. However, the direct experimental evidence for the interrelation between octahedral rotation and magnetism at interface is scarce. Here we demonstrate that interfacial octahedral rotation are closely linked to the strongly modified ferromagnetism in (LaMnO3+delta)(N)/(SrTiO3)(N) superlattices. The maximized ferromagnetic moment in the N = 6 superlattice is accompanied by a metastable structure (space group Imcm) featuring minimal octahedral rotations (a(-) a(-) c(-), alpha similar to 4.2 degrees, gamma similar to 0.5 degrees). Quenched ferromagnetism for N<4 superlattices is correlated to a substantially enhanced c axis octahedral rotation (a(-) a(-) c(-), alpha similar to 3.8 degrees, gamma similar to 8 degrees for N = 2). Monte-Carlo simulation based on double-exchange model qualitatively reproduces the experimental observation, confirming the correlation between octahedral rotation and magnetism. Our study demonstrates that engineering superlattices with controllable interfacial structures can be a feasible new route in realizing functional magnetic materials.
收录类别SCI
WOS记录号WOS:000340617100002
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被引频次:36[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225204
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
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GB/T 7714
Zhai, XF,Cheng, L,Liu, Y,et al. Correlating interfacial octahedral rotations with magnetism in (LaMnO3+delta)(N)/(SrTiO3)(N) superlattices[J]. NATURE COMMUNICATIONS,2014,5:4283.
APA Zhai, XF.,Cheng, L.,Liu, Y.,Schlepuetz, CM.,Dong, S.,...&张静.(2014).Correlating interfacial octahedral rotations with magnetism in (LaMnO3+delta)(N)/(SrTiO3)(N) superlattices.NATURE COMMUNICATIONS,5,4283.
MLA Zhai, XF,et al."Correlating interfacial octahedral rotations with magnetism in (LaMnO3+delta)(N)/(SrTiO3)(N) superlattices".NATURE COMMUNICATIONS 5(2014):4283.
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