Ab-initio study for the correlation effect on the magneto-optical properties of Co-based full Heusler alloys

2011 ◽  
Vol 519 (23) ◽  
pp. 8419-8422 ◽  
Author(s):  
Miyoung Kim ◽  
Hanjo Lim ◽  
Jae Il Lee
JETP Letters ◽  
2020 ◽  
Vol 112 (5) ◽  
pp. 290-298
Author(s):  
A. Zitouni ◽  
G. Remil ◽  
B. Bouadjemi ◽  
W. Benstaali ◽  
T. Lantri ◽  
...  

2019 ◽  
Vol 32 (8) ◽  
pp. 2479-2488 ◽  
Author(s):  
Ahmad Asadi Mohammad Abadi ◽  
Ghasem Forozani ◽  
Seyyed Mahdy Baizaee ◽  
Abdolrasoul Gharaati

Vacuum ◽  
2021 ◽  
pp. 110418
Author(s):  
Yutong Li ◽  
Jingchuan Zhu ◽  
Ramesh Paudel ◽  
Jingtao Huang ◽  
Fei Zhou

2009 ◽  
Vol 635 ◽  
pp. 3-12 ◽  
Author(s):  
Peter Entel ◽  
Markus E. Gruner ◽  
Antje Dannenberg ◽  
Mario Siewert ◽  
Sanjeev K. Nayak ◽  
...  

Ferromagnetic Heusler alloys like Ni-Mn-Z (Z = Al, Ga, In, Sn, Sb), which undergo a martensitic phase transformation, are on the edge of being used in technological applications involving actuator and magnetocaloric devices. The other class of ferromagnetic full Heusler alloys like Co-Mn-Z (Z = Al, Si, Ga, Ge, Sn) not undergoing a structural phase transition, are half-metals (in contrast to the Ni-based systems) with high spin polarization at the Fermi level and are of potential importance for future spintronics devices. On the basis of recent ab initio calculations, we highlight the main differences between the two classes of Heusler based materials.


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.


2021 ◽  
Vol 328 ◽  
pp. 114238
Author(s):  
S. Mesbah ◽  
M. Houari ◽  
F.Z. Boufadi ◽  
B. Bouadjemi ◽  
T. Lantri ◽  
...  

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