Towards a full Heusler alloy showing room temperature half-metallicity at the surface

arxiv: cond-mat/0609504 · v1 · pith:TATUOHOHnew · submitted 2006-09-20 · ❄️ cond-mat.mtrl-sci

Towards a full Heusler alloy showing room temperature half-metallicity at the surface

M. Cinchetti , J.-P. W\"ustenberg , M. S\'anchez Albaneda , F. Steeb , A. Conca , M. Jourdan , M. Aeschlimann This is my paper

classification ❄️ cond-mat.mtrl-sci

keywords surfaceroomspintemperaturealloyfullheuslerpolarization

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In this article we investigate the surface spin polarization in a 100 nm Co2Cr0.6Fe0.4Al (CCFA) film grown ex situ epitaxially on MgO(100) with a 10 nm Fe buffer layer by means of spin resolved photoemission. We show that a careful in situ preparation of the sample surface leads to values for the room temperature spin polarization up to 45% at the Fermi level. To our knowledge, this is the highest value measured so far at the surface region of a full Heusler alloy at room temperature.

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Towards a full Heusler alloy showing room temperature half-metallicity at the surface

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