Electronic Structure, Elastic, Magnetic, and Optical Properties of Fe2MnZ (Z = Si, Ge, and Sn) Full Heusler Alloys: First-Principle Calculations
| Autor: | Rakesh Jain, Vivek Kumar Jain, N. Lakshmi, Aarti R. Chandra |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Spintronics Condensed matter physics Spin polarization Magnetic moment Electronic structure Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Lattice constant Lattice (order) 0103 physical sciences First principle 010306 general physics Anisotropy |
| Zdroj: | Journal of Superconductivity and Novel Magnetism. 32:739-749 |
| ISSN: | 1557-1947 1557-1939 |
| DOI: | 10.1007/s10948-018-4751-3 |
| Popis: | Investigations of the electronic structure, elastic, magnetic, and optical properties of Fe2MnZ (Z = Si, Ge, and Sn) full Heusler alloys show mechanical stability with cubic symmetry in all three alloys. They are elastically anisotropic and Fe2MnSi is ductile whereas Fe2MnGe and Fe2MnSn are brittle in nature. The value of total magnetic moment is 3 ${\upmu }_{\mathrm {B}}$ for Fe2MnSi and Fe2MnGe at their equilibrium lattice constants and follows the Slater–Pauling curve. Fe2MnSn possess the largest magnetic moment among the three with a value of 5.73 ${\upmu }_{\mathrm {B}}$ at equilibrium lattice constant. Fe2MnSi shows half-metallic nature with 100% spin polarization for a wide range of lattice parameters and is useful for spintronics devices. Good optical properties over wide photon energies point to the possible use of these alloys as radiation shielding materials, optical filters, and photo-electronic devices. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink