scholarly journals Half-metallicity in new Heusler alloys Mn2ScZ (Z = Si, Ge, Sn)

RSC Advances ◽  
2020 ◽  
Vol 10 (13) ◽  
pp. 7661-7670 ◽  
Author(s):  
Mahesh Ram ◽  
Atul Saxena ◽  
Abeer E. Aly ◽  
Amit Shankar

Study of half-metallicity has been performed in a new series of Mn2ScZ (Z = Si, Ge and Sn) full Heusler alloys using density functional theory with the calculation and implementation of a Hubbard correction term (U).

RSC Advances ◽  
2019 ◽  
Vol 9 (52) ◽  
pp. 30462-30478 ◽  
Author(s):  
Kenji Nawa ◽  
Yoshio Miura

A density functional theory (DFT)+U method based on linear response (LR) theory was applied to investigate the electronic structures of Co-based full Heusler alloys of ternary Co2YSi and quaternary Co2(Y,Mn)Si.


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

2014 ◽  
Vol 1015 ◽  
pp. 377-380
Author(s):  
Tao Chen ◽  
Ying Chen ◽  
Yin Zhou ◽  
Hong Chen

Using the first-principles calculations within density functional theory (DFT), we investigated the electronic and magnetic properties of (100) surface of inverse Heusler alloy Mn2CoSb with five different terminations. Our work reveals that the surface Mn atom moves to vacuum while surface Co atom moves to slab. Moreover, duo to the reason that the surface atom lost half of the nearest atoms with respect to the bulk phase, resulting in the decrease of hybridization, the atom-resolved spin magnetic moments of surface atoms are enhanced. Further investigation on DOS and PDOS showed that half-metallicity was preserved only in SbSb-termination while was destroyed in MnCo-, MnSb-, MnMn-, and CoCo-termination due to the appearance of surface states.


Author(s):  
Lalrinkima ◽  
C. E. Ekuma ◽  
T. C. Chibueze ◽  
L. A. Fomin ◽  
I. V. Malikov ◽  
...  

The electronic, magnetic, structural, vibrational, and X-ray absorption spectroscopy of inverse full-Heusler Fe2IrSi alloy has been studied from density functional theory (DFT). The XA-phase with FM-configuration is the most stable one, structurally and thermodynamically.


2020 ◽  
Vol 32 (32) ◽  
pp. 325001
Author(s):  
Iltaf Muhammad ◽  
Jian-Min Zhang ◽  
Anwar Ali ◽  
Muhammad Mushtaq ◽  
Suleman Muhammad

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