Magnetic field dependent evolution of band structure in La1-xCaxMnO3 (x=0.18 and 0.30)

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	Magnetic field dependent evolution of band structure in La1-xCaxMnO3 (x=0.18 and 0.30)
	T. F. Zhou; G. Li; T. Qian; X. G. Li
	2006
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	89 期号:22
摘要	Probing of the evolution of electronic structure in magnetic field is a key issue for the design and realization of manganite-based devices. Here, the shift of the maximum (or minimum) position in unusual magnetoresistance (MR) versus V curves of the heterojunctions composed of La1-xCaxMnO3 (LCMO, x=0.18 and 0.3) and 0.5 wt % Nb-doped SrTiO3 (SNTO) was used to investigate the change of band gaps of LCMO with magnetic field. Negative and positive MRs which depend on temperature, bias current (or voltage), and Ca concentration observed in these heterojunctions are directly determined by the band structure at the LCMO-SNTO interface. (c) 2006 American Institute of Physics.
部门归属	univ sci & technol china, dept phys, hefei natl lab phys sci microscale, hefei 230026, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;li, xg (reprint author), univ sci & technol china, dept phys, hefei natl lab phys sci microscale, hefei 230026, peoples r china;lixg@ustc.edu.cn
关键词	Room-temperature Magnetoresistance
URL	查看原文
WOS记录号	WOS:000242538500064
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34768
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	T. F. Zhou,G. Li,T. Qian,et al. Magnetic field dependent evolution of band structure in La1-xCaxMnO3 (x=0.18 and 0.30)[J]. Applied Physics Letters,2006,89(22).
APA	T. F. Zhou,G. Li,T. Qian,&X. G. Li.(2006).Magnetic field dependent evolution of band structure in La1-xCaxMnO3 (x=0.18 and 0.30).Applied Physics Letters,89(22).
MLA	T. F. Zhou,et al."Magnetic field dependent evolution of band structure in La1-xCaxMnO3 (x=0.18 and 0.30)".Applied Physics Letters 89.22(2006).