Magnetite: Phonon modes and the Verwey transition
L. DegiorgiLaboratorium für Festkörperphysik, Eidgenössische Technische Hochschule Zürich, 8093 Zürich, SwitzerlandI. Blatter-MörkeLaboratorium für Festkörperphysik, Eidgenössische Technische Hochschule Zürich, 8093 Zürich, SwitzerlandP. WächterLaboratorium für Festkörperphysik, Eidgenössische Technische Hochschule Zürich, 8093 Zürich, Switzerland
1987en
ABI
Abstract
Reflectivity and Raman measurements of magnetite at 300, 130, 80, and 6 K are presented. The four infrared-active phonon modes and the five Raman modes exhibit fine structures below the Verwey transition (120 K), which are clearly detected for what may be the first time. A phenomenological analysis of the phonon spectrum at 130 K is performed.
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