Electronic structure and magnetic properties of epitaxial FeRh(001) ultra-thin films on W(100)

Details Electronic structure and magnetic properties of epitaxial FeRh(001) ultra-thin films on W(100) Electronic structure and magnetic properties of epitaxial FeRh(001) ultra-thin films on W(100)

2011-04-27

arxiv.org/abs/1104.5258v1

published - Phys. Rev. B 82, 224410 (2010)

Physics

Condensed Matter

Materials Science

7 pages, 5 figures

Scientific paper

10.1103/PhysRevB.82.224410

Epitaxial FeRh(100) films (CsCl structure, $\sim 10\ ML\ $ thick), prepared {\it in-situ} on a W(100) single crystal substrate, have been investigated via valence band and core level photoemission. The presence of the temperature-induced, first-order, antiferromagnetic to ferromagnetic (AF$\rightarrow$ FM) transition in these films has been verified via linear dichroism in photoemission from the Fe 3$p$ levels. Core level spectra indicate a large moment on the Fe atom, practically unchanged in the FM and AF phases. Judging from the valence band spectra, the metamagnetic transition takes place without substantial modification of the electronic structure. In the FM phase, the spin-resolved spectra compare satisfactorily to the calculated spin-polarized bulk band structure.

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