Spin-disorder resistivity of random fcc-NiFe alloys

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10382458" target="_blank" >RIV/00216208:11320/18:10382458 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/18:00498408 RIV/68081723:_____/18:00498408
Result on the web
<a href="https://doi.org/10.1103/PhysRevB.98.134442" target="_blank" >https://doi.org/10.1103/PhysRevB.98.134442</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.98.134442" target="_blank" >10.1103/PhysRevB.98.134442</a>

Result language
angličtina
Original language name
Spin-disorder resistivity of random fcc-NiFe alloys
Original language description
The spin-disorder resistivity (SDR) of a disordered fcc-(Ni1-x, Fe-x) alloy is determined from first principles. We identify the SDR at and above the critical temperature with the residual resistivity of the corresponding paramagnetic state evaluated in the framework of the disordered local moment (DLM) model. The underlying electronic structure is determined by means of the tight-binding linear muffin-tin orbital method, which employs the coherent potential approximation (CPA) to describe both the DLM state and the chemical disorder in alloys. An extension of the DLM fixed-spin moment method for two independent magnetic moments is used and combined with the paramagnetic lattice gas entropy to determine local moments by minimizing the corresponding free energy. The effect of phonon scattering is included through the mapping of static atomic displacements into a multicomponent random alloy which is then treated in the CPA. Finally, the Kubo-Greenwood-CPA approach is employed to estimate the SDR. We also address the problem of the validity of the Matthiessen rule at the Curie point. Good agreement of calculated and measured SDR is obtained over the whole studied concentration range; the results point to the importance of nonzero Ni magnetic moments in the limit of pure nickel.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/GA18-07172S" target="_blank" >GA18-07172S: Topical problems in theory of manipulation of spin polarization in bulk and layered systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)