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research article
Light scattering from the critical modes of the Verwey transition in magnetite
November 6, 2018
We present inelastic light scattering data on a single crystal of magnetite (Fe3O4) across the Verwey transition. We identify anomalies of the lattice vibrations that originate from strong coupling to electronic excitations. We reveal spectroscopic signatures of diffusive modes in the electronic contribution to the Raman response function. We thereby provide information on the critical dynamics and the hierarchy of the structural and electronic modes in the mechanism of the Verwey transition.
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Type
research article
Web of Science ID
WOS:000449386900001
Authors
Publication date
2018-11-06
Publisher
Published in
Volume
98
Issue
18
Article Number
184301
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
December 13, 2018