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Correlations Between Optical Transmission and Magnetic Properties of Doped and Undoped GaMnN

  • Amr M. Mahros (a1), M. O. Luen (a2), A. Emara (a3), E. A. Berkman (a4), F. E. Arkun (a5), X. Zhang (a1), J. Muth (a6), N. A. El-Masry (a7) and S. M. Bedair (a8)...

Abstract

Ferromagnetism (FM) in GaMnN was found to be related to the position of the Fermi level relative to the Mn deep-level band. The location of the Fermi level can be altered by doping GaMnN with Si (n-type) and Mg (p-type) dopants, resulting in a ferromagnetic to paramagnetic transformation. We have found that this manipulation of the Fermi level also can affect the optical properties of GaMnN, GaMnN: Mg and GaMnN: Si. The major optical absorption bands were found either to be enhanced or diminished depending on the level and nature of the doping elements. Therefore, a correlation between optical properties and saturation magnetization of GaMnN can be established.

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Keywords

Correlations Between Optical Transmission and Magnetic Properties of Doped and Undoped GaMnN

  • Amr M. Mahros (a1), M. O. Luen (a2), A. Emara (a3), E. A. Berkman (a4), F. E. Arkun (a5), X. Zhang (a1), J. Muth (a6), N. A. El-Masry (a7) and S. M. Bedair (a8)...

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