scholarly journals Theoretical study of phase stability, electronic and magnetic properties of Rh2CrGe1-xAlx (x = 0, 0.25, 0.50, 0.75 and 1) Heusler alloys by FP-LAPW method

2020 ◽  
Vol 23 (1) ◽  
pp. 13701
Author(s):  
Kadjaoud ◽  
Mokhtari ◽  
Djoudi ◽  
Merabet ◽  
Benalia ◽  
...  
2016 ◽  
Vol 34 (4) ◽  
pp. 905-915 ◽  
Author(s):  
M. Rahmoune ◽  
A. Chahed ◽  
A. Amar ◽  
H. Rozale ◽  
A. Lakdja ◽  
...  

AbstractIn this work, first-principles calculations of the structural, electronic and magnetic properties of Heusler alloys CoMnYAl, CoMnYGa and CoMnYIn are presented. The full potential linearized augmented plane waves (FP-LAPW) method based on the density functional theory (DFT) has been applied. The structural results showed that CoMnYZ (Z = Al, Ga, In) compounds in the stable structure of type 1+FM were true half-metallic (HM) ferromagnets. The minority (half-metallic) band gaps were found to be 0.51 (0.158), 0.59 (0.294), and 0.54 (0.195) eV for Z = Al, Ga, and In, respectively. The characteristics of energy bands and origin of minority band gaps were also studied. In addition, the effect of volumetric and tetragonal strain on HM character was studied. We also investigated the structural, electronic and magnetic properties of the doped Heusler alloys CoMnYGa1−xAlx, CoMnYAl1−xInx and CoMnYGa1−xInx (x = 0, 0.25, 0.5, 0.75, 1). The composition dependence of the lattice parameters obeys Vegard’s law. All alloy compositions exhibit HM ferromagnetic behavior with a high Curie temperature (TC).


2021 ◽  
Vol 1849 (1) ◽  
pp. 012030
Author(s):  
P K Joshi ◽  
K Kumar ◽  
G Arora ◽  
D Mali ◽  
P K Jangid ◽  
...  

2019 ◽  
Vol 9 (5) ◽  
pp. 964 ◽  
Author(s):  
Haopeng Zhang ◽  
Wenbin Liu ◽  
Tingting Lin ◽  
Wenhong Wang ◽  
Guodong Liu

The structural stability and magnetic properties of the cubic and tetragonal phases of Mn3Z (Z = Ga, In, Tl, Ge, Sn, Pb) Heusler alloys are studied by using first-principles calculations. It is found that with the increasing of the atomic radius of Z atom, the more stable phase varies from the cubic to the tetragonal structure. With increasing tetragonal distortion, the magnetic moments of Mn (A/C and B) atoms change in a regular way, which can be traced back to the change of the relative distance and the covalent hybridization between the atoms.


2015 ◽  
Vol 394 ◽  
pp. 404-409 ◽  
Author(s):  
M. El Amine Monir ◽  
R. Khenata ◽  
H. Baltache ◽  
G. Murtaza ◽  
M.S. Abu-Jafar ◽  
...  

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