Temperature-induced changes in the magnetism of Laves phase rare-earth-iron intermetallics by ab initio calculations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00562539" target="_blank" >RIV/68378271:_____/22:00562539 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/49777513:23640/22:43967712

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevB.106.144416" target="_blank" >https://doi.org/10.1103/PhysRevB.106.144416</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.106.144416" target="_blank" >10.1103/PhysRevB.106.144416</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Temperature-induced changes in the magnetism of Laves phase rare-earth-iron intermetallics by ab initio calculations

Popis výsledku v původním jazyce

Laves RFe2 compounds, where R is a rare earth, exhibit technologically relevant properties associated with the interplay between their lattice geometry and magnetism. We apply ab initio calculations to explore how magnetic properties of Fe in RFe2 systems vary with temperature. We found that the ratio between the orbital magnetic moment μorb and the spin magnetic moment μspin increases with increasing temperature for YFe2, GdFe2, TbFe2, DyFe2, and HoFe2. This increase is significant and it should be experimentally observable by means of x-ray magnetic circular dichroism. We conjecture that the predicted increase of the μorb/μspin ratio with temperature is linked to the reduction of hybridization between same-spin-channel states of atoms with fluctuating magnetic moments and to the associated increase of their atomic-like character.

Název v anglickém jazyce

Temperature-induced changes in the magnetism of Laves phase rare-earth-iron intermetallics by ab initio calculations

Popis výsledku anglicky

Laves RFe2 compounds, where R is a rare earth, exhibit technologically relevant properties associated with the interplay between their lattice geometry and magnetism. We apply ab initio calculations to explore how magnetic properties of Fe in RFe2 systems vary with temperature. We found that the ratio between the orbital magnetic moment μorb and the spin magnetic moment μspin increases with increasing temperature for YFe2, GdFe2, TbFe2, DyFe2, and HoFe2. This increase is significant and it should be experimentally observable by means of x-ray magnetic circular dichroism. We conjecture that the predicted increase of the μorb/μspin ratio with temperature is linked to the reduction of hybridization between same-spin-channel states of atoms with fluctuating magnetic moments and to the associated increase of their atomic-like character.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Physical Review B

ISSN

2469-9950

e-ISSN

2469-9969

Svazek periodika

106

Číslo periodika v rámci svazku

14

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

144416

Kód UT WoS článku

000877981400005

EID výsledku v databázi Scopus

2-s2.0-85140646375