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Title: Molecular-beam epitaxy growth and magnetic properties of BeTe with Cr doping
Authors: Viloane, K.
Sreenivasan, M.G.
Teo, K.L. 
Liew, T.
Chong, T.C.
Issue Date: 2006
Source: Viloane, K., Sreenivasan, M.G., Teo, K.L., Liew, T., Chong, T.C. (2006). Molecular-beam epitaxy growth and magnetic properties of BeTe with Cr doping. Journal of Applied Physics 99 (8) : -. ScholarBank@NUS Repository.
Abstract: We report the growth and magnetic properties of BeTe with Cr doping grown on GaAs(001) substrate at Te-rich condition by solid-source molecular-beam epitaxy. Ferromagnetisms were observed for films with high Cr concentration, x. The Curie temperatures TC for x=0.13 and x=0.17 are 175±5 K, while the TC for x=0.27 is 250±5 K. Structural properties were studied by in situ reflection high-energy electron diffraction, atomic force microscopy, and x-ray diffraction. Be1-x Mnx Te and Cr1-δ Te films were also grown and compared with the Be(Cr)Te films. We show that the ferromagnetic ordering of Be(Cr)Te films can be attributed to precipitations of NiAs Cr1-δ Te. © 2006 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.2168434
Appears in Collections:Staff Publications

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