標題: Charge-orbital ordering and verwey transition in magnetite measured by resonant soft X-ray scattering
作者: Huang, DJ
Lin, HJ
Okamoto, J
Chao, KS
Jeng, HT
Guo, GY
Hsu, CH
Huang, CM
Ling, DC
Wu, WB
Yang, CS
Chen, CT
電子物理學系
Department of Electrophysics
公開日期: 10-Mar-2006
摘要: We report experimental evidence for the charge-orbital ordering in magnetite below the Verwey transition temperature T-V. Measurements of O K-edge resonant x-ray scattering on magnetite reveal that the O 2p states in the vicinity of the Fermi level exhibit a charge-orbital ordering along the c axis with a spatial periodicity of the doubled lattice parameter of the undistorted cubic phase. Such a charge-orbital ordering vanishes abruptly above T-V and exhibits a thermal hysteresis, correlating closely with the Verwey transition in magnetite.
URI: http://dx.doi.org/10.1103/PhysRevLett.96.096401
http://hdl.handle.net/11536/12492
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.96.096401
期刊: PHYSICAL REVIEW LETTERS
Volume: 96
Issue: 9
起始頁: 0
結束頁: 0
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