Volume 73, Number 1, January 2006
|Page(s)||97 - 103|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||07 December 2005|
Vanishing 3d orbital moments in single-crystalline magnetite
Max-Planck-Institut für Metallforschung - Heisenbergstrasse 3 70569 Stuttgart, Germany
Accepted: 2 November 2005
We show detailed magnetic absorption spectroscopy results of an in situ cleaved high-quality single crystal of magnetite. In addition the experimental setup was carefully optimized to reduce drift, self-absorption, and offset phenomena as far as possible. In strong contradiction to recently published data, our observed orbital moments are nearly vanishing and the spin moments are quite close to the integer values proposed by theory. This very important issue supports the half-metallic full-spin-polarized picture of magnetite.
PACS: 75.47.-m – Magnetotransport phenomena; materials for magnetotransport / 78.70.Dm – X-ray absorption spectra / 71.30.+h – Metal-insulator transitions and other electronic transitions
© EDP Sciences, 2005
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