Szczegóły publikacji
Opis bibliograficzny
Electrical and magnetic properties, and FLAPW electronic band structure of magnetostrictive $Tb_{0.27}Dy_{0.73}(Fe_{0.7-x}Ni_{x}Co_{0.3})_{2}$ compounds / M. SZKLARSKA-ŁUKASIK, P. Guzdek, J. CHMIST, P. STOCH, J. PSZCZOŁA // Materials Science and Engineering. B, Advanced Functional Solid-State Materials ; ISSN 0921-5107. — 2015 — vol. 193, s. 76–82. — Bibliogr. s. 82, Abstr.
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Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 88112 |
|---|---|
| Data dodania do BaDAP | 2015-03-05 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.mseb.2014.11.013 |
| Rok publikacji | 2015 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Materials Science and Engineering, B, Advanced Functional Solid-State Materials |
Abstract
The structural and physical properties of nickel-diluted Tb0.27Dy0.73(Fe0.7-xNixCo0.3)(2) intermetallics were studied by X-ray diffraction, four-probe dc electrical measurements and standard strain gauge method. Xray analysis shows that all samples crystallize in a cubic Laves structure. The lattice parameter decreases linearly with the nickel content. Electrical resistivity was measured in a temperature range of 15-1100 K. The parameters involved in the dependence of resistivity on temperature and composition were determined. Residual, phonon and magnetic resistivity were separated from the electrical resistivity using both the Matthiessen and Bloch-Gruneisen formulas. The compounds' Curie temperatures, which decrease nonlinearly with x, were obtained from the magnetic resistivity curves. The maximum values of magnetostriction attained for the Tb0.27Dy0.73(Fe0.6Ni0.1Co0.3)(2) compound exceed about 851 ppm. Electronic 3d-band structure and magnetic moment calculations were performed using the Full-Potential Linearized Augmented Plane Waves method. The distribution function for the densities of 3d-states was used to characterise the transition metal subbands. (C) 2014 Elsevier B.V. All rights reserved.
