Orbital ordering in La0.5Sr1.5MnO4 studied by soft x-ray linear dichroism

標題:	Orbital ordering in La0.5Sr1.5MnO4 studied by soft x-ray linear dichroism
作者:	Huang, DJ Wu, WB Guo, GY Lin, HJ Hou, TY Chang, CF Chen, CT Fujimori, A Kimura, T Huang, HB Tanaka, A Jo, T 電子物理學系 Department of Electrophysics
公開日期:	27-二月-2004
摘要:	We found that the conventional model of orbital-ordering of 3x(2)-r(2)/3y(2)-r(2) type in the e(g) states of La0.5Sr1.5MnO4 is incompatible with measurements of linear dichroism in the Mn 2p-edge x-ray absorption, whereas these e(g) states exhibit predominantly cross-type orbital ordering of x(2)-z(2)/y(2)-z(2). LDA+U band-structure calculations reveal that such a cross-type orbital-ordering results from a combined effect of antiferromagnetic structure, Jahn-Teller distortion, and on-site Coulomb interactions.
URI:	http://dx.doi.org/10.1103/PhysRevLett.92.087202 http://hdl.handle.net/11536/27015
ISSN:	0031-9007
DOI:	10.1103/PhysRevLett.92.087202
期刊:	PHYSICAL REVIEW LETTERS
Volume:	92
Issue:	8
起始頁:	0
結束頁:	0
顯示於類別：	期刊論文

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