Fermi Level shifting, Charge Transfer and Induced Magnetic Coupling at La0.7Ca0.3MnO3/LaNiO3 Interface

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	Fermi Level shifting, Charge Transfer and Induced Magnetic Coupling at La0.7Ca0.3MnO3/LaNiO3 Interface
	X. K.; Wang Ning, Z. J.; Zhang, Z. D.
	2015
发表期刊	Scientific Reports
ISSN	2045-2322
卷号	5
摘要	A large magnetic coupling has been observed at the La0.7Ca0.3MnO3/LaNiO3 (LCMO/LNO) interface. The x-ray photoelectron spectroscopy (XPS) study results show that Fermi level continuously shifted across the LCMO/LNO interface in the interface region. In addition, the charge transfer between Mn and Ni ions of the type Mn3+ - Ni3+ -> Mn4+ - Ni2+ with the oxygen vacancies are observed in the interface region. The intrinsic interfacial charge transfer can give rise to itinerant electrons, which results in a "shoulder feature" observed at the low binding energy in the Mn 2p core level spectra. Meanwhile, the orbital reconstruction can be mapped according to the Fermi level position and the charge transfer mode. It can be considered that the ferromagnetic interaction between Ni2+ and Mn4+ gives rise to magnetic regions that pin the ferromagnetic LCMO and cause magnetic coupling at the LCMO/LNO interface.
部门归属	[ning, xingkun ; wang, zhanjie ; zhang, zhidong] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. ; wang, zj (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china. ; wangzj@imr.ac.cn
关键词	Ray Photoelectron-spectroscopy Films Superconductivity Superlattices Coexistence Deposition Manganese Oxides
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73893
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. K.,Wang Ning, Z. J.,Zhang, Z. D.. Fermi Level shifting, Charge Transfer and Induced Magnetic Coupling at La0.7Ca0.3MnO3/LaNiO3 Interface[J]. Scientific Reports,2015,5.
APA	X. K.,Wang Ning, Z. J.,&Zhang, Z. D..(2015).Fermi Level shifting, Charge Transfer and Induced Magnetic Coupling at La0.7Ca0.3MnO3/LaNiO3 Interface.Scientific Reports,5.
MLA	X. K.,et al."Fermi Level shifting, Charge Transfer and Induced Magnetic Coupling at La0.7Ca0.3MnO3/LaNiO3 Interface".Scientific Reports 5(2015).