| Numéro |
J. Phys. IV France
Volume 07, Numéro C1, Mars 1997
7th INTERNATIONAL CONFERENCE ON FERRITES
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|---|---|---|
| Page(s) | C1-585 - C1-586 | |
| DOI | https://doi.org/10.1051/jp4:19971240 | |
7th INTERNATIONAL CONFERENCE ON FERRITES
J. Phys. IV France 07 (1997) C1-585-C1-586
DOI: 10.1051/jp4:19971240
1 Department of Physics, Faculty of Science, Kyushu University, Fukuoka 812-81, Japan
2 Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-11, Japan
3 Institute for Solid State Physics, University of Tokyo, Minato, Tokyo 106, Japan
4 College of Integrated Arts and Sciences, University of Osaka Prefecture, Sakai, Osaka 593, Japan
© EDP Sciences 1997
J. Phys. IV France 07 (1997) C1-585-C1-586
DOI: 10.1051/jp4:19971240
Diffuse Neutron Scattering of the High Temperature Phase of Fe3O4
K. Siratori1, Y. Ishii2, Y. Morii2, S. Funahashi3 and A. Yanase41 Department of Physics, Faculty of Science, Kyushu University, Fukuoka 812-81, Japan
2 Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-11, Japan
3 Institute for Solid State Physics, University of Tokyo, Minato, Tokyo 106, Japan
4 College of Integrated Arts and Sciences, University of Osaka Prefecture, Sakai, Osaka 593, Japan
Abstract
Diffuse neutron scattering is observed for the high temperature phase of magnetite, Fe3O4, in an extended range in the (001) and (011) plane of the Brillouin zone. Contours of scattered intensity shows a characteristic pattern, discs in the (100) plane around the Γ points, spheres around the X points, etc. The intensity of this diffuse scattering increases with decreasing temperature down to the Verwey point and is attributed to the lattice distortion induced by charge fluctuation in the B site, or polarons.
Symmetry and the polarization of the atomic displacement are discussed on the observation.
© EDP Sciences 1997