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Stability, Electronic and Magnetic Properties of Rare Earth (Eu, Tm) Implanted InGaN

  • S. BelhachiEmail author
Original Paper
  • 45 Downloads

Abstract

The electronic structure and magnetic behavior of InGaN:RE (RE = Eu, Tm) have been studied by using scalar relativistic full-potential linear augmented-plane-wave plus local orbital (FPLAPW + lo) calculations with LSDA+U approximation. Band structure and density of states are analyzed. It appears that the In-site is the preferred site for doping InGaN alloy with rares earth (Eu, Tm) from the formation energy. Our study reveals that these materials are semiconductors with a direct band gap of 1.2345 eV and 1.3657 eV for InGaN:Eu and InGaN:Tm respectively. The total energy of the FM phase is lower than the AFM total energy; this confirms the fact that the ground state at zero temperature is ferromagnetic. A small-induced magnetic moment on other nonmagnetic atoms (Ga, In, and N) and the total magnetic moment of these compounds is mainly due to RE-4f states.

Keywords

InGaN alloy Europium Thulium DMS Direct band gap 

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Laboratoire de Modélisation et Simulation en Sciences des MatériauxUniversité Djillali Liabès de Sidi Bel-AbbèsSidi Bel AbbèsAlgeria

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