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Ferromagnetism in carbon-doped Mn5Si3 films

Gajdzik, Martin; Sürgers, Christoph ORCID iD icon; Kelemen, Marc Tibor; Löhneysen, Hilbert von


The effect of carbon doping on the structural and magnetic properties of Mn5Si3Cx films is investigated for different substrate temperatures TS and concentrations x. Samples with x≈0.75 prepared at TS=650–750 K exhibit ferromagnetic order with enhanced ordering temperatures TC well above room temperature in contrast to the undoped antiferromagnetic Mn5Si3 compound. Structural analysis shows that C is incorporated interstitially in the hexagonal Mn5Si3-type structure with a lattice expansion with respect to the undoped compound. The enhanced ferromagnetic order is presumably not simply due to a change of the interatomic Mn–Mn distances but due to a change of the electronic structure and/or exchange interactions. © 2000 American Institute of Physics.

Zugehörige Institution(en) am KIT Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2000
Sprache Deutsch
Identifikator ISSN: 0021-8979
KITopen-ID: 30282000
Erschienen in Journal of applied physics
Verlag American Institute of Physics (AIP)
Band 87
Heft 9
Seiten 6013-6015
Nachgewiesen in Web of Science
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