Abstract
Energy difference between the ferromagnetic and antiferromagnetic collinear orderings has been calculated for the uniform and dimer Mn-pair geometries in order to find the ground state distribution of the Mn atoms in InAs host. We find the preference of the dimer ferromagnetic configuration of Mn dopants and an importance of optimizing the atomic site positions. The frequency-dependent optical and magneto-optical properties, namely the dielectric tensor (on-and off-diagonal components), the electron energy loss spectra, and the transversal Kerr effect (TKE), are calculated. Calculated TKE resonance in In1-xMnxAs (x=0.0625) is found to be in good agreement with corresponding experimental magneto-optical spectra. The origin of the large TKE is discussed.
Highlights
Diluted magnetic semiconductors (DMS) are considered as promising materials for spintronics
In this paper we study electronic and magneto-optical properties of InAs:Mn DMSregarding its possible application in spintronics
We found that the FM order is the most stable magnetic state (Table 1, the2-nd column).An interesting feature of density of states (DOS) is a narrow unoccupied part of the valence band, which is placed just above the Fermi level
Summary
Diluted magnetic semiconductors (DMS) are considered as promising materials for spintronics. Density-functional calculations presented here are performed within the supercell (2x2x2 cubic zinc blende unit cell), corresponding to 64 atoms.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
