The effect of defects on the electronic and magnetic properties of the Co2VSn full Heusler alloy: Ab-initio calculations

2013 ◽  
Vol 33 ◽  
pp. 33-37 ◽  
Author(s):  
N.T. Mahmoud ◽  
J.M. Khalifeh ◽  
B.A. Hamad ◽  
A.A. Mousa
RSC Advances ◽  
2020 ◽  
Vol 10 (73) ◽  
pp. 44633-44640
Author(s):  
D. P. Rai ◽  
Lalrinkima ◽  
Lalhriatzuala ◽  
L. A. Fomin ◽  
I. V. Malikov ◽  
...  

We report the electronic and magnetic properties along with the Curie temperature (TC) of the inverse full Heusler alloy (HA) Fe2CoAl obtained using the first-principles computational method.


2013 ◽  
Vol 26 (12) ◽  
pp. 3469-3474 ◽  
Author(s):  
A. Rkhioui ◽  
R. Masrour ◽  
E. K. Hlil ◽  
L. Bahmad ◽  
M. Hamedoun ◽  
...  

2013 ◽  
Vol 27 (30) ◽  
pp. 1350219 ◽  
Author(s):  
S. BAHLOULI ◽  
Z. AARIZOU ◽  
M. ELCHIKH

In this paper, we present ab initio calculations within density functional theory (DFT) to investigate structure, electronic and magnetic properties of Ru 2 CrZ ( Z = Si , Ge and Sn ) full-Heusler alloys. We have used the developed full-potential linearized muffin tin orbitals (FP-LMTO) based on the local spin density approximation (LSDA) with the PLane Wave expansion (PLW). In particular, we found that these Ruthenium-based Heusler alloys have the antiferromagnetic (AFM) type II as ground state. Then, we studied and discussed the magnetic properties belonging to our different magnetic structures: AFM type II, AFM type I and ferromagnetic (FM) phase. We also found that Ru 2 CrSi and Ru 2 CrGe exhibit a semiconducting behavior whereas Ru 2 CrSn has a semimetallic-like behavior as it is experimentally found. We made an estimation of Néel temperatures (T N ) in the framework of the mean-field theory and used the energy differences approach to deduce the relevant short-range nearest-neighbor (J1) and next-nearest-neighbor (J2) interactions. The calculated T N are somewhat overestimated to the available experimental ones.


2018 ◽  
Vol 32 (31) ◽  
pp. 1850348
Author(s):  
Xiao-Qin Feng ◽  
Hong-Xia Lu ◽  
Jian-Ming Jia ◽  
Chang-Shun Wang

Systematic ab initio calculations reveal that the electronic and magnetic properties are modified by superlattices of zigzag and armchair Boron nitride nanosheet (BNNS). Superlattices are constructed by partially hydrogenated B and N atoms of BNNS. The results show that only no more than half N atoms hydrogenated superlattices are antiferromagnetic. The electronic properties of zigzag BN nanosheet superlattices depend on the degree of hydrogenation of N atoms sensitively. As a result, changing the degree of hydrogenation of N atoms results in the transition from semiconductor to metal.


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