Charge-Orbital Ordering and Verwey Transition in Magnetite Measured by Resonant Soft X-Ray Scattering

Abstract

References (28)

Citing Articles

Download: PDF (335 kB) or Buy this Article (US$25) (Use Article Pack)

D. J. Huang,^1,2 H.-J. Lin,¹ J. Okamoto,¹ K. S. Chao,² H.-T. Jeng,³ G. Y. Guo,^4,1 C.-H. Hsu,¹ C.-M. Huang,¹ D. C. Ling,⁵ W. B. Wu,² C. S. Yang,¹ and C. T. Chen^1,4
¹National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
²Department of Electrophysics, National Chiao-Tung University, Hsinchu 30010, Taiwan
³Physics Division, National Center for Theoretical Sciences, Hinchu 30013, Taiwan
⁴Department of Physics, National Taiwan University, Taipei 10617, Taiwan
⁵Department of Physics, Tamkang University, Taipei 25137, Taiwan

Received 24 June 2005; published 9 March 2006

Wereport experimental evidence for the charge-orbital ordering in magnetite belowthe Verwey transition temperature T_V. Measurements of O K-edge resonantx-ray scattering on magnetite reveal that the O 2p statesin the vicinity of the Fermi level exhibit a charge-orbitalordering along the c axis with a spatial periodicity ofthe doubled lattice parameter of the undistorted cubic phase. Sucha charge-orbital ordering vanishes abruptly above T_V and exhibits athermal hysteresis, correlating closely with the Verwey transition in magnetite.

URL:	http://link.aps.org/doi/10.1103/PhysRevLett.96.096401
DOI:	10.1103/PhysRevLett.96.096401
PACS:	71.30.+h; 61.10.-i; 71.28.+d 71.30.+h Metal–insulator transitions and other electronic transitions 61.10.-i X-ray diffraction and scattering 71.28.+d Narrow-band systems; intermediate-valence solids YEAR: 2006
KEYWORDS:	metal-insulator transition, Fermi level, X-ray scattering, iron compounds

REFERENCES (28)

View in Separate Window/Tab

For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.

M. Imada, A. Fujimori, and Y. Tokura, Rev. Mod. Phys. 70, 1039 (1998).
P. Novak, H. Stepankova, J. Englich, J. Kohout, and V. A. M. Brabers, Phys. Rev. B 61, 1256 (2000).
J. Garcia, G. Subias, M. G. Proietti, H. Renevier, Y. Joly, J. L. Hodeau, J. Blasco, M. C. Sanchez, and J. F. Berar, Phys. Rev. Lett. 85, 578 (2000).
J. Garcia, G. Subias, M. G. Proietti, J. Blasco, H. Renevier, J. L. Hodeau, and Y. Joly, Phys. Rev. B 63, 054110 (2001).
G. Subias, J. Garcia, J. Blasco, M. Grazia Proietti, H. Renevier, and M. C. Sanchez, Phys. Rev. Lett. 93, 156408 (2004).
J. P. Wright, J. P. Attfield, and P. G. Radaelli, Phys. Rev. Lett. 87, 266401 (2001).
J. P. Wright, J. P. Attfield, and P. G. Radaelli, Phys. Rev. B 66, 214422 (2002).
I. Leonov, A. N. Yaresko, V. N. Antonov, M. A. Korotin, and V. I. Anisimov, Phys. Rev. Lett. 93, 146404 (2004).
H. T. Jeng, G. Y. Guo, and D. J. Huang, Phys. Rev. Lett. 93, 156403 (2004).
S. B. Wilkins, P. D. Spencer, P. D. Hatton, S. P. Collins, M. D. Roper, D. Prabhakaran, and A. T. Boothroyd, Phys. Rev. Lett. 91, 167205 (2003).
K. J. Thomas, J. P. Hill, S. Grenier, Y.-J. Kim, P. Abbamonte, L. Venema, A. Rusydi, Y. Tomioka, Y. Tokura, D. F. McMorrow, G. Sawatzky, and M. van Veenendaal, Phys. Rev. Lett. 92, 237204 (2004).
M. Takahashi, M. Usuda, and J. Igarashi, Phys. Rev. B 67, 064425 (2003).
N. Binggeli and M. Altarelli, Phys. Rev. B 70, 085117 (2004).
A. Chainani, T. Yokoya, T. Morimoto, T. Takahashi, and S. Todo, Phys. Rev. B 51, 17 976 (1995).
S. K. Park, T. Ishikawa, and Y. Tokura, Phys. Rev. B 58, 3717 (1998).