High-energy photoemission on Fe3O4: Small polaron physics and the Verwey transition (original) (raw)
, M. Sing, M. Tsunekawa, H. Fujiwara, S. Kasai, A. Sekiyama, S. Suga, T. Muro, V. A. M. Brabers and R. Claessen
Published 25 May 2005 • 2005 EDP Sciences
Europhysics Letters,Volume 70,Number 6Citation D. Schrupp et al 2005 EPL 70 789DOI 10.1209/epl/i2005-10045-y
Article metrics
1274 Total downloads
0 Video abstract views
Dates
- Received 14 February 2005
- Accepted 22 April 2005
- Published 25 May 2005
0295-5075/70/6/789
Abstract
We have studied the electronic structure and charge ordering (Verwey) transition of magnetite (Fe3O4) by soft X-ray photoemission. Due to the enhanced probing depth and the use of different surface preparations we are able to distinguish surface and volume effects in the spectra. The pseudogap behavior of the intrinsic spectra and its temperature dependence give evidence for the existence of strongly bound small polarons consistent with both dc and optical conductivity. Together with other recent structural and theoretical results our findings support a picture in which the Verwey transition contains elements of a cooperative Jahn-Teller effect, stabilized by local Coulomb interaction.
Export citation and abstractBibTeXRIS
Access this article
The computer you are using is not registered by an institution with a subscription to this article. Please choose one of the options below.
Rent from
Make a recommendation
To gain access to this content, please complete the Recommendation Form and we will follow up with your librarian or Institution on your behalf.
For corporate researchers we can also follow up directly with your R&D manager, or the information management contact at your company. Institutional subscribers have access to the current volume, plus a 10-year back file (where available).