Issue
EPL
Volume 84, Number 5, December 2008
Article Number 57012
Number of page(s) 3
Section Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties
DOI http://dx.doi.org/10.1209/0295-5075/84/57012
Published online 16 December 2008
EPL, 84 (2008) 57012
DOI: 10.1209/0295-5075/84/57012

Ferromagnetism in (Mn,Li) co-doped CdSe

Z. Nabi and R. Ahuja

Condensed Matter Theory Group, Department of Physics, Uppsala University - Box 530, S-751 21, Uppsala, Sweden, EU

zakia.nabi@fysik.uu.se

received 23 June 2008; accepted in final form 30 October 2008; published December 2008
published online 16 December 2008

Abstract
Ab initio calculations based on the density functional theory are reported for the Mn-doped CdSe for 5.5% and 12.5% Mn on a Cd sublattice. It is found that Mn-doped CdSe is antiferromagnetic. An essential ingredient to stabilize the ferromagnetism in bulk Cd1-xMnxSe can be realized by the co-doping of Li. We demonstrate that CdSe co-doped with Mn and Li has a stable ferromagnetic ground state and we show that the electronic structure of Cd1-2xMnxLixSe has a nearly metallic character.

PACS
75.50.Pp - Magnetic semiconductors.
71.20.-b - Electron density of states and band structure of crystalline solids.
71.15.Nc - Total energy and cohesive energy calculations.

© EPLA 2008