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Title

Light scattering from the critical modes of the Verwey transition in magnetite

Authors
Borroni, S.
Piekarz, P.
Oleś, A. M.
Lorenzana, J.
Carbone, F.
Published in Physical review. B, Condensed matter and materials physics. 2018, vol. 98, no. 18
Abstract 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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Research groups Groupe Kuzmenko
Groupe Van der Marel
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BORRONI, S. et al. Light scattering from the critical modes of the Verwey transition in magnetite. In: Physical Review. B, Condensed Matter, 2018, vol. 98, n° 18. doi: 10.1103/PhysRevB.98.184301 https://archive-ouverte.unige.ch/unige:110543

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Deposited on : 2018-11-07

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