Evidence for the half-metallic ferromagnetic state of Fe3O4 by spin-resolved photoelectron
نویسندگان
چکیده
The spin-dependent electronic structure of thin epitaxial films of magnetite, Fe3O4(111), has been investigated at room temperature by means of spin-, energy-, and angle-resolved photoemission spectroscopy. Near the Fermi energy EF a spin polarization of 2(8065)% is found. The spin-resolved photoemission spectra for binding energies between 1.5 eV and EF show good agreement with spin-split band energies from densityfunctional calculations.
منابع مشابه
Spin-resolved photoelectron spectroscopy of Fe3O4---revisited
Recently Tobin et al (2007 J. Phys.: Condens. Matter 19 315218) reported on the spin-resolved photoemission study of Fe3O4(001) films, claiming magnetite being a case against half-metallicity. In the present communication we re-examine recent spin-resolved photoemission experiments on Fe3O4 and explain why their criticism is unfounded. The materials class of half-metallic ferromagnets comprisin...
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