Electronic structure, optical and magnetic properties of Co$_{2}$FeGe Heusler alloy films
N. V. Uvarov,Yu. V. Kudryavtsev,A. F. Kravets,A.Ya. Vovk,R. P. Borges,Maria Helena Godinho,Vladislav Korenivski +6 more
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TLDR
In this paper, the optical properties of a half-metallic full-Heusler Co$2}$FeGe alloy were investigated experimentally and theoretically, and first-principles calculations of the electronic structure and the dielectric tensor were performed using the full-potential linearized-augmented-plane-wave method in the generalized gradient (GGA) and GGA+U approximations.Abstract:
Optical properties of ferromagnetic half-metallic full-Heusler Co$_{2}$FeGe alloy are investigated experimentally and theoretically. Co$_{2}$FeGe thin films were obtained by DC magnetron sputtering and show the saturation magnetization at $T$=10 K of $m\approx$5.6 $\mu_{B}$/f.u., close to the value predicted by the Slater-Pauling rule. First-principles calculations of the electronic structure and the dielectric tensor are performed using the full-potential linearized-augmented-plane-wave method in the generalized gradient (GGA) and GGA+U approximations. The measured interband optical conductivity spectrum for the alloy exhibits a strong absorption band in the 1 - 4 eV energy range with pronounced fine structure, which agrees well with the calculated half-metallic spectrum of the system, suggesting a near perfect spin-polarization in the material.read more
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Electronic and magnetic properties of the Co2-based Heusler compounds under pressure: first-principles and Monte Carlo studies
Mikhail A. Zagrebin,Mikhail A. Zagrebin,Vladimir V. Sokolovskiy,Vladimir V. Sokolovskiy,Vasiliy D. Buchelnikov +4 more
TL;DR: In this article, structural, magnetic and electronic properties of stoichiometric Co2 YZ Heusler alloys have been studied by means of ab initio calculations and Monte Carlo simulations.
Journal ArticleDOI
Large magnetocrystalline anisotropy in tetragonally distorted Heuslers: a systematic study
Yu-ichiro Matsushita,Yu-ichiro Matsushita,Galia Madjarova,Galia Madjarova,J. K. Dewhurst,Sam Shallcross,Claudia Felser,Sangeeta Sharma,Sangeeta Sharma,E. K. U. Gross +9 more
TL;DR: In this article, the authors explore the possibility of large magnetocrystalline anisotropy energies in Heusler compounds that are unstable with respect to a tetragonal distortion.
Journal ArticleDOI
Study of electronic, magnetic, optical and elastic properties of Cu2MnAl a gapless full Heusler compound
D. P. Rai,Raj Kumar Thapa +1 more
TL;DR: The full potential linearized augmented plane wave method with the generalized gradient approximation (FPLAPW-GGA) has been used to understand the electronic, magnetic, optical and elastic properties of Cu2MnAl a full-Heusler compound as mentioned in this paper.
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Theoretical investigation of the structural, magnetic and band structure characteristics of Co2FeGe1−xSix (x = 0, 0.5, 1) full-Heusler alloys
S. Amari,F. Dahmane,S. Bin Omran,Bendouma Doumi,I. E. Yahiaoui,Abdelkader Tadjer,Rabah Khenata +6 more
TL;DR: In this paper, the structural, magnetic and electronic properties of the Co2FeGe1−x 1.5Si0.5, 1) Heusler compounds have been calculated using the full-potential linearized augmented plane-wave method within the spin density functional theory within the generalized gradient approximation of Perdew-Burke-Ernzerhof.
Journal ArticleDOI
Effect of Disorder on Electronic, Magnetic, and Optical Properties of Co2CrZ Heusler Alloys (Z = Al, Ga, Si, Ge)
TL;DR: In this article, the effect of disorder on electronic, magnetic, and optical properties of Co2CrZ (Z = Al, Si, Ga, Ge) Heusler alloy using density functional theory is presented.
References
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