Paper Title:
Magnetotransport in Ferromagnetic (Ga,Mn)N Epitaxial Films
  Abstract

We present the ferromagnetism and magnetotransport properties in the (Ga,Mn)N epitaxial films with very low Mn concentrations grown by plasma-enhanced molecular beam epitaxy (PEMBE). The (Ga,Mn)N epitaxial films were found to exhibit ferromagnetic ordering with Curie temperature of 700 K. All the films exhibit n-type characteristics. The negative magnetoresistance was observed below 150 K, and found to gradually increase with decreasing temperature. The ferromagnetism in the (Ga,Mn)N is due to the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between the localized Mn moments mediated by the electron gas.

  Info
Periodical
Materials Science Forum (Volumes 449-452)
Edited by
S.-G. Kang and T. Kobayashi
Pages
1041-1044
DOI
10.4028/www.scientific.net/MSF.449-452.1041
Citation
M.H. Ham, M. C. Jeong, W.Y. Lee, J. M. Myoung, J.M. Lee, J.Y. Chang, S.H. Han, "Magnetotransport in Ferromagnetic (Ga,Mn)N Epitaxial Films ", Materials Science Forum, Vols. 449-452, pp. 1041-1044, 2004
Online since
March 2004
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$32.00
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