5f states in UGa2 probed by x-ray spectroscopies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00545206" target="_blank" >RIV/68378271:_____/21:00545206 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/21:10430409

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevB.104.045119" target="_blank" >https://doi.org/10.1103/PhysRevB.104.045119</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.104.045119" target="_blank" >10.1103/PhysRevB.104.045119</a>

Jazyk výsledku

angličtina

Název v původním jazyce

5f states in UGa2 probed by x-ray spectroscopies

Popis výsledku v původním jazyce

The ferromagnet UGa2 was investigated by x-ray absorption spectroscopy and x-ray magnetic circular dichroism (XMCD) experiments at the U–M4,5 and Ga–K edges. The position of the U–M4 white line, determined in the high-energy resolution fluorescence detection XAS, suggests that UGa2 is neither a localized 5f2 nor an itinerant system with 5f occupancy close 3. The analysis of the acquired M4,5 XANES and XMCD spectra indicates the 5f occupancy close to 2.5 and a large orbital magnetic moment of the uranium 5f states that is partly compensated by the antiparallel spin moment. Several methods based on density-functional theory were applied and the obtained results were compared with experimental observations. Only electronic structure methods taking appropriate care of orbital magnetism and related atomic multiplet effects can successfully describe all considered properties.

Název v anglickém jazyce

5f states in UGa2 probed by x-ray spectroscopies

Popis výsledku anglicky

The ferromagnet UGa2 was investigated by x-ray absorption spectroscopy and x-ray magnetic circular dichroism (XMCD) experiments at the U–M4,5 and Ga–K edges. The position of the U–M4 white line, determined in the high-energy resolution fluorescence detection XAS, suggests that UGa2 is neither a localized 5f2 nor an itinerant system with 5f occupancy close 3. The analysis of the acquired M4,5 XANES and XMCD spectra indicates the 5f occupancy close to 2.5 and a large orbital magnetic moment of the uranium 5f states that is partly compensated by the antiparallel spin moment. Several methods based on density-functional theory were applied and the obtained results were compared with experimental observations. Only electronic structure methods taking appropriate care of orbital magnetism and related atomic multiplet effects can successfully describe all considered properties.

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

2021

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

104

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

045119

Kód UT WoS článku

000672770300003

EID výsledku v databázi Scopus

2-s2.0-85109841601