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Magnetic properties of low temperature grown Si:Ce thin films on [001] Si substrate by molecular beam epitaxy

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4 Author(s)
Terao, T. ; Graduate Sch. of Eng., Osaka Prefecture Univ., Japan ; Yoshimizu, Y. ; Nishimura, Y. ; Fujimura, N.

A diluted magnetic semiconductor, Si:Ce thin films with the Ce concentration below 4.3 at%, were prepared by solid source molecular beam epitaxy. The lattice constant of the Si:Ce film increases with increasing the Ce concentration, while it decreases above Ce 0.2 at%. Magnetization measured at 4.2 K for the samples with the Ce concentration up to 0.2 at% also increases with increasing the Ce concentration up to 0.2 at%. The amount of substituted Ce in Si is considered to play an important role for the magnetic properties.

Published in:

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Date of Conference:

4-8 April 2005