Magnetic properties of vanadium doped CdTe: Ab initio calculations

被引：47
作者：
Goumrhar, F. [1 ]
Bahmad, L. [2 ]
Mounkachi, O. [3 ]
Benyoussef, A. [2 ,3 ,4 ]
机构：
[1] Mohammed V Univ Rabat, Fac Sci, LPHE MS, Av Ibn Batouta,BP 1014, Rabat, Morocco
[2] Mohammed V Univ Rabat, Fac Sci, Lab Magnetism & High Energy Phys LMPHE URAC12, Av Ibn Batouta,BP 1014, Rabat, Morocco
[3] MAScIR Fondat, Mat & Nanomat Ctr, Rabat, Morocco
[4] Hassan II Acad Sci & Technol, Rabat, Morocco
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2017年 / 428卷
关键词：
CdTe; KKR-CPA; DMS; Ferromagnetism; Half-metal; Double exchange; FERROMAGNETISM; GAIN;
D O I：
10.1016/j.jmmm.2016.12.041
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, we are applying the ab initio calculations to study the magnetic properties of vanadium doped CdTe. This study is based on the Korringa-Kohn-Rostoker method (KKR) combined with the coherent potential approximation (CPA), within the local density approximation (LDA). This method is called KKR-CPALDA. We have calculated and plotted the density of states (DOS) in the energy diagram for different concentrations of dopants. We have also investigated the magnetic and half-metallic properties of this compound and shown the mechanism of exchange interaction. Moreover, we have estimated the Curie temperature Tc for different concentrations. Finally, we have shown how the crystal field and the exchange splittings vary as a function of the concentrations.
引用
收藏
页码：368 / 371
页数：4
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