Ferromagnetism and matrix-dependent charge transfer in strained LaMnO3-LaCoO3 superlattices

Interfacial magnetism at transition-metal oxide interfaces is of tremendous interest. The emergence of ferromagnetism and a matrix-dependent charge transfer between Co and Mn ions in the interdiffusion region of compressively strained LaMnO3–LaCoO3 superlattices (SLs) were studied. The SLs exhibit c...

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محفوظ في:
التفاصيل البيبلوغرافية
المؤلفون الرئيسيون: Wu, Liang, Chen, Mingfeng, Li, Changjian, Zhou, Jun, Shen, Lei, Wang, Yujia, Zhong, Zhicheng, Feng, Ming, Zhang, Yujun, Han, Kun, Venkatesan, T. Venky, Pennycook, Stephen J., Yu, Pu, Ma, Jing, Wang, Renshaw Xiao, Nan, Ce-Wen
مؤلفون آخرون: School of Electrical and Electronic Engineering
التنسيق: مقال
اللغة:English
منشور في: 2019
الموضوعات:
الوصول للمادة أونلاين:https://hdl.handle.net/10356/107480
http://hdl.handle.net/10220/49044
الوسوم: إضافة وسم
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المؤسسة: Nanyang Technological University
اللغة: English
الوصف
الملخص:Interfacial magnetism at transition-metal oxide interfaces is of tremendous interest. The emergence of ferromagnetism and a matrix-dependent charge transfer between Co and Mn ions in the interdiffusion region of compressively strained LaMnO3–LaCoO3 superlattices (SLs) were studied. The SLs exhibit considerable ferromagnetism, which is negligible in both constituents. This is explained by the matrix-dependent charge transfer between Co and Mn ions. That is, the valence state of diffused Co ions into LaMnO3 shifts from 3+ to 2+ by adopting one electron from Mn3+, inducing the same amount of Mn4+, while the Mn ions that diffuses into LaCoO3 remains Mn3+.