Prospects for Room Temperature Magnetic Semiconductors and their Applications
No Thumbnail Available
Date
2018-08-05
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Addis Ababa University
Abstract
This project is a review of prospects for room temperature magnetic semiconductors
and their applications. We also studied general properties of semiconductors related to
and found that their conductivity increases as temperature increase. Moreover, diluted
magnetic semiconductors (DMS) are understood as a class of magnetic semiconductor in
which a fraction of the cations are substitutionally replaced by magnetic ions. Finally, by
using Heisenberg model of magnetic interaction we demonstrated the dispersion relation
of magnons, average number of magnons, density of state for three dimension or bulk
system and found that magnons dispersion is a ected by magnetic spins from the magnetic
dopant, the increase of density of state with energy, variation of number of magnons with
temperature and lattice constant of the host material.
Description
Keywords
Prospects, Room Temperature, Magnetic Semiconductors, Applications