Superparamagnetism Found in Diluted Magnetic Semiconductor Nanowires: Mn-Doped CdSe

2008 ◽  
Vol 112 (46) ◽  
pp. 17964-17968 ◽  
Author(s):  
Chih-Chang Chen ◽  
Yung-Jung Hsu ◽  
Yi-Feng Lin ◽  
Shih-Yuan Lu
2014 ◽  
Vol 28 (14) ◽  
pp. 1450111 ◽  
Author(s):  
L. Hua ◽  
Q. L. Zhu

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.


1999 ◽  
Vol 75 (21) ◽  
pp. 3366-3368 ◽  
Author(s):  
T. Fukumura ◽  
Zhengwu Jin ◽  
A. Ohtomo ◽  
H. Koinuma ◽  
M. Kawasaki

2005 ◽  
Vol 54 (6) ◽  
pp. 2934
Author(s):  
Kuang An-Long ◽  
Liu Xing-Chong ◽  
Lu Zhong-Lin ◽  
Ren Shang-Kun ◽  
Liu Cun-Ye ◽  
...  

2010 ◽  
Vol 49 (15) ◽  
pp. 2777-2781 ◽  
Author(s):  
Zhen Li ◽  
Lina Cheng ◽  
Qiao Sun ◽  
Zhonghua Zhu ◽  
Mark J. Riley ◽  
...  

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