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Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
Published on: October 5, 2013
Symmetry of orbital order in Fe3O4 studied by Fe L(2,3) resonant x-ray diffraction
A Tanaka1, C F Chang, M Buchholz
1Department of Quantum Matters, ADSM, Hiroshima University, Higashi-Hiroshima 739-8530, Japan.
Abstract:
We studied the symmetry of the Fe 3d wave function in magnetite below the Verwey temperature T(V) with resonant soft-x-ray diffraction. Although the lattice structure of the low-temperature phase of Fe(3)O(4) is well described by the pseudo-orthorhombic Pmca with a slight monoclinic P2/c distortion, we find that the 3d wave function does not reflect the Pmca symmetry, and its distortion toward monoclinic symmetry is by far larger than that of the lattice. The result supports a scenario in which the Verwey transition involves the ordering of t(2g) orbitals with complex-number coefficients.
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