Stability, Electronic and Magnetic Properties of Rare Earth (Eu, Tm) Implanted InGaN
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.
- OSTI ID:
- 22922956
- Journal Information:
- Journal of Superconductivity and Novel Magnetism, Journal Name: Journal of Superconductivity and Novel Magnetism Journal Issue: 8 Vol. 32; ISSN 1557-1939
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATOMIC FORCE MICROSCOPY
DENSITY OF STATES
ELECTRONIC STRUCTURE
EUROPIUM IONS
FORMATION HEAT
GALLIUM COMPOUNDS
GROUND STATES
INDIUM COMPOUNDS
ION IMPLANTATION
KEV RANGE 01-10
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
NITROGEN COMPOUNDS
RELATIVISTIC RANGE
SEMICONDUCTOR MATERIALS
THULIUM IONS
WAVE PROPAGATION