Charge-orbital ordering and verwey transition in magnetite measured by resonant soft X-ray scattering

被引：93

作者：

Huang, DJ ^{[1
]}

Lin, HJ

Okamoto, J

Chao, KS

Jeng, HT

Guo, GY

Hsu, CH

Huang, CM

Ling, DC

Wu, WB

Yang, CS

Chen, CT

机构：

[1] Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan

[2] Natl Chiao Tung Univ, Dept Electrophys, Hsinchu 30010, Taiwan

[3] Natl Ctr Theoret Sci, Div Phys, Hinchu 30013, Taiwan

[4] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan

[5] Tamkang Univ, Dept Phys, Tamsui 25137, Taiwan

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.96.096401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

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.

引用

页数：4

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