Mg Defect Induced Ferromagnetic Ordering in Li-Doped MgO Nanostructures

Author(s):  
Neha Rani ◽  
Nidhi Sheoran ◽  
Rajni Shukla ◽  
S.K Singh
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Licheng Fu ◽  
Yilun Gu ◽  
Guoxiang Zhi ◽  
Haojie Zhang ◽  
Rufei Zhang ◽  
...  

AbstractWe report the effect of chemical pressure on the ferromagnetic ordering of the recently reported n-type diluted magnetic semiconductor Ba(Zn$$_{1-x}$$ 1 - x Co$$_{x}$$ x )$$_{2}$$ 2 As$$_{2}$$ 2 which has a maximum $$T_C$$ T C $$\sim$$ ∼ 45 K. Doping Sb into As-site and Sr into Ba-site induces negative and positive chemical pressure, respectively. While conserving the tetragonal crystal structure and n-type carriers, the unit cell volume shrink by $$\sim$$ ∼ 0.3$$\%$$ % with 15$$\%$$ % Sr doping, but drastically increase the ferromagnetic transition temperature by 18$$\%$$ % to 53 K. Our experiment unequivocally demonstrate that the parameters of Zn(Co)As$$_{4}$$ 4 tetrahedra play a vital role in the formation of ferromagnetic ordering in the Ba(Zn,Co)$$_{2}$$ 2 As$$_{2}$$ 2 DMS.


2017 ◽  
Vol 43 (8) ◽  
pp. 6013-6018 ◽  
Author(s):  
Jinhuan Jia ◽  
Yongfeng Li ◽  
Bin Yao ◽  
Zhanhui Ding ◽  
Ruijian Liu ◽  
...  

Author(s):  
D. Sanyal ◽  
Mahuya Chakrabarti ◽  
Vaishali Naik ◽  
Tapatee Kundu Roy ◽  
Debasis Bhowmick ◽  
...  

2004 ◽  
Vol 84 (5) ◽  
pp. 777-779 ◽  
Author(s):  
Y. P. Lee ◽  
S. Y. Park ◽  
V. G. Prokhorov ◽  
V. A. Komashko ◽  
V. L. Svetchnikov

Carbon ◽  
2018 ◽  
Vol 132 ◽  
pp. 691-697 ◽  
Author(s):  
Qian Feng ◽  
Yongping Zheng ◽  
Jiaxin Li ◽  
Liqin Jiang ◽  
Yuda Lin ◽  
...  

Nano Letters ◽  
2013 ◽  
Vol 13 (4) ◽  
pp. 1572-1577 ◽  
Author(s):  
Xuezhe Yu ◽  
Hailong Wang ◽  
Dong Pan ◽  
Jianhua Zhao ◽  
Jennifer Misuraca ◽  
...  

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