Structural, Optical and Magnetic Properties of Mn-doped CdS Diluted Magnetic Semiconductor Nanoparticles

2012 ◽  
Vol 25 (6) ◽  
pp. 2009-2014 ◽  
Author(s):  
S. Salimian ◽  
S. Farjami Shayesteh
Keyword(s):  
Magnetic Properties ◽  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Semiconductor Nanoparticles ◽  
Optical And Magnetic Properties ◽  
Diluted Magnetic ◽  
Mn Doped

Electronic structure and magnetic properties of diluted magnetic semiconductor K and Mn co-doped BaCd2As2 from first-principles calculations

2014 ◽  
Vol 28 (14) ◽  
pp. 1450111 ◽  
Author(s):  
L. Hua ◽  
Q. L. Zhu
Keyword(s):  
Magnetic Properties ◽  
Electronic Structure ◽  
Density Functional ◽  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Antiferromagnetic Coupling ◽  
Generalized Gradient ◽  
Diluted Magnetic ◽  
Mn Doped ◽  
Co Doped

In this paper, we have investigated the electronic structure and magnetic properties of K and Mn co-doped BaCd 2 As 2 using density functional theory within the generalized gradient approximation ( GGA ) + U schemes. Calculations show that the ground state magnetic structure of Mn -doped BaCd 2 As 2 is antiferromagnetic while K and Mn co-doped BaCd 2 As 2 is ferromagnetic. Electronic structures indicate that the superexchange mechanism leads to the antiferromagnetic coupling between Mn atoms in Mn -doped BaCd 2 As 2 while the hole-mediated Zener's p–d exchange mechanism leads to the ferromagnetic coupling between Mn atoms in K and Mn co-doped BaCd 2 As 2.

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