Electronic, structural, and magnetic properties of the half-metallic ferromagnetic quaternary Heusler compounds CoFeMnZ(Z=Al, Ga, Si, Ge)

2011 ◽  
Vol 84 (22) ◽  
Author(s):  
Vajiheh Alijani ◽  
Siham Ouardi ◽  
Gerhard H. Fecher ◽  
Jürgen Winterlik ◽  
S. Shahab Naghavi ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Heusler Compounds ◽  
Half Metallic ◽  
Structural And Magnetic Properties

Effects of Ga substitution on the structural and magnetic properties of half metallic Fe2MnSi Heusler compound

2015 ◽  
Vol 117 (1) ◽  
pp. 013902 ◽  
Author(s):  
S. S. Pedro ◽  
R. J. Caraballo Vivas ◽  
V. M. Andrade ◽  
C. Cruz ◽  
L. S. Paixão ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Half Metallic ◽  
Heusler Compound ◽  
Structural And Magnetic Properties ◽  
Ga Substitution

Origin of the half-metallic band-gap in newly designed quaternary Heusler compounds ZrVTiZ (Z = Al, Ga)

RSC Advances ◽  
2016 ◽  
Vol 6 (62) ◽  
pp. 57041-57047 ◽  
Author(s):  
Xiaotian Wang ◽  
Zhenxiang Cheng ◽  
Jianli Wang ◽  
Liying Wang ◽  
Zheyin Yu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Band Gap ◽  
First Principles ◽  
Electronic Structures ◽  
Heusler Compounds ◽  
First Principles Calculations ◽  
Half Metallic ◽  
Work First

In this work, first-principles calculations have been used to investigate the electronic structures, magnetic properties, and half-metallic nature of the newly designed quaternary Heusler compounds ZrVTiAl and ZrVTiGa.

ELECTRONIC STRUCTURE AND MAGNETIC PROPERTIES OF Co2YZ(Y = Cr, Z = Al, Ga) TYPE HEUSLER COMPOUNDS: A FIRST PRINCIPLE STUDY

2012 ◽  
Vol 26 (08) ◽  
pp. 1250071 ◽  
Author(s):  
D. P. RAI ◽  
A. SHANKAR ◽  
SANDEEP ◽  
M. P. GHIMIRE ◽  
R. K. THAPA
Keyword(s):  
Magnetic Properties ◽  
Electronic Structure ◽  
Magnetic Moments ◽  
Full Potential ◽  
Local Spin Density Approximation ◽  
Heusler Compounds ◽  
Generalized Gradient ◽  
Half Metallic ◽  
Augmented Plane Wave ◽  
3D Elements

The structural optimization was followed by the calculation of electronic structure and magnetic properties on Co 2 CrAl and Co 2 CrGa . The structure optimization was based on generalized gradient approximation (GGA). The calculation of electronic structure was based on full potential linear augmented plane wave (FPLAPW) method within local spin density approximation (LSDA). We studied the electronic structure and magnetic properties. Results of density of states (DOS) and band structures shows that Co 2 CrAl and Co 2 CrGa are half-metallic ferromagnets (HMFS). The calculated magnetic moments of Co 2 CrAl and Co 2 CrGa are 2.915 and 3.075 μ B , respectively. We have calculated the onsite d–d coulomb and exchange interaction (U) For 3d elements like Co and Cr . The strongly localized d states were treated with LSDA+U method.

scholarly journals First-principles study of structural, electronic and magnetic properties of Co-based quaternary Heusler compounds: CoFeCrAl, CoFeTiAs, CoFeCrGa and CoMnVAs

BIBECHANA ◽  
2017 ◽  
Vol 15 ◽  
pp. 50-59 ◽  
Author(s):  
Bikram Pandey ◽  
Ram Babu Ray ◽  
Gopi Chandra Kaphle
Keyword(s):  
Magnetic Properties ◽  
Density Functional ◽  
Electronic Band Structure ◽  
Tight Binding ◽  
Lattice Parameter ◽  
Total Density ◽  
Heusler Compounds ◽  
Electronic Band ◽  
Half Metallic ◽  
Electronic And Magnetic Properties

We study the Structural, Electronic and Magnetic properties of Co-based LiMgPdSn-types of quaternary Heusler compounds (CoFeCrAl, CoFeTiAs, CoFeCrGa, and CoMnVAS) using Density Functional Theory (DFT) implemented on Tight Binding Linear Muffin-Tin Orbital within Atomic Sphere Approximation(TB-LMTO-ASA) Code. The optimized value of lattice parameter for CoFeCrAl, CoFeTiAs, CoFeCrGa and CoMnVAs are found to be 5.61A˚, 5.76 A˚, 5.61A˚ and 5.71A˚ respectively. From the calculation of electronic band structure and spin polarized total density of states (DOS), we found that CoFeCrAl and CoFeCrGa are spin-gapless semiconductor with half-metallic gap of 0.82eV and 0.25eV respectively. CoFeTiAs half-metals (Nearly spin-gapless semiconductor) with half-metallic gap 0.38 eV and CoMnVAs is found to be nearly gapless half-metal. Magnetic moment of these compounds almost obey the Slater-Pauling rules. All these compounds  expected to have high curie temperature which makes them significant for spintroincs/magnetoelectroincs applications.BIBECHANA 15 (2018) 50-59 

Microstructures and Magnetic Property of Bulk and Thin Film Co2MnGe Heusler Compound

2004 ◽  
Vol 449-452 ◽  
pp. 1029-1032
Author(s):  
Koichi Tsuchiya ◽  
Takehiro Washio ◽  
Tatsuya Hashimoto ◽  
Kohji Miyanaka ◽  
Minoru Umemoto
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Magnetic Properties ◽  
Magnetic Property ◽  
Electronic Devices ◽  
Bulk Sample ◽  
Heusler Compounds ◽  
Electronic Band ◽  
Half Metallic ◽  
Heusler Compound

Half metallic ferromagnets are candidate materials for novel electronic devices, which can control the spin character of the conducting electrons. Electronic band calculation predicted that Co2MnGe Heusler compounds may has the half metallic band structure. In the present study, structure and magnetic properties have been investigated of the Co2MnGe for bulk and thin films. In the bulk sample, plate defects have been found.

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