Electronic and magnetic properties of α-FeGe₂ films embedded in vertical spin valve devices

URN to cite this document:: urn:nbn:de:bvb:355-epub-442545
DOI to cite this document:: 10.5283/epub.44254

Czubak, Dietmar ; Gaucher, Samuel ; Oppermann, Lars ; Herfort, Jens ; Zollner, Klaus ; Fabian, Jaroslav

; Grahn, Holger T. ; Ramsteiner, Manfred

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Date of publication of this fulltext: 03 Dec 2020 06:14

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Abstract

We studied metastable alpha-FeGe2, a layered tetragonal material, embedded as a spacer layer in spin valve structures with ferromagnetic Fe3Si and Co2FeSi electrodes. For both types of electrodes, spin valve operation is demonstrated with A metallic transport behavior of the alpha-FeGe2 spacer layer. The spin valve signals are found to increase with both temperature and spacer thickness, which is ...