Transport properties of iron at Earth’s core conditions: The effect of spin disorder

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00482166" target="_blank" >RIV/68378271:_____/17:00482166 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/17:10369517

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevB.96.024432" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.96.024432</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.96.024432" target="_blank" >10.1103/PhysRevB.96.024432</a>

Result language

angličtina

Original language name

Transport properties of iron at Earth’s core conditions: The effect of spin disorder

Original language description

We show, by considering bcc iron and an iron-rich iron-silicon alloy as a representative of the Earth’s core composition and applying first-principles modeling, that the spin disorder at the Earth’s core conditions not considered previously provides an essential contribution, of order 20 μΩ cm, to the electrical resistivity. This value is comparable in magnitude with the electron-phonon and with the recently estimated electron-electron scattering contributions. The origin of the spin-disorder resistivity (SDR) consists of the existence of fluctuating local moments that are stabilized at high temperatures by the magnetic entropy even at pressures at which the ground state of iron is nonmagnetic. We find that electron-phonon and SDR contributions are not additive at high temperatures. We thus observe a large violation of the Matthiessen rule.

Czech name

—

Czech description

—

Type

J_imp - 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/GA15-13436S" target="_blank" >GA15-13436S: Relativistic effects in the response of spin-polarized electrons to external fields</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review B

ISSN

2469-9950

e-ISSN

—

Volume of the periodical

96

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

5

Pages from-to

—

UT code for WoS article

000406034800006

EID of the result in the Scopus database

2-s2.0-85026418346