Ferromagnetism above room temperature in Mn-Si-C alloy films

  • Mn-Si-C alloy films are prepared by e-beam coevaporation onto a Si substrate held at 600 °C. Ferromagnetism is observed below T = (360 +/- 5) K with SQUID magnetometry and magneto-optical Kerr effect. This is the highest Curie temperature T yet observed for a Mn-based alloy. Although the composition determined by Auger depth profiling varies appreciably for different films, their T is the same indicating that ferromagnetism is caused by an alloy of well-defined composition independent of precipitations.

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Metadaten
Author:M. Gajdzik, C. Sürgers, M. Kelemen, Burkard Hillebrands, H. von Löhneysen
URN:urn:nbn:de:hbz:386-kluedo-8917
Document Type:Article
Language of publication:English
Year of Completion:1999
Year of first Publication:1999
Publishing Institution:Technische Universität Kaiserslautern
Date of the Publication (Server):2000/04/03
Tag:Curie temperature; Ferromagnetism; Mn-Si-C alloy films; SQUID magnetometry; magneto-optical Kerr effect
Faculties / Organisational entities:Kaiserslautern - Fachbereich Physik
DDC-Cassification:5 Naturwissenschaften und Mathematik / 530 Physik
Licence (German):Standard gemäß KLUEDO-Leitlinien vor dem 27.05.2011