Rare- earth fourth-order multipole moment in cubic ErCo2 probed by linear dichroism in core-level photoemission

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00489935" target="_blank" >RIV/68378271:_____/18:00489935 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.7566/JPSJ.87.033710" target="_blank" >http://dx.doi.org/10.7566/JPSJ.87.033710</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.7566/JPSJ.87.033710" target="_blank" >10.7566/JPSJ.87.033710</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rare- earth fourth-order multipole moment in cubic ErCo2 probed by linear dichroism in core-level photoemission

Popis výsledku v původním jazyce

We developed a method to experimentally quantify the fourth-order multipole moment of the rare-earth 4f orbital. Linear dichroism (LD) in the Er 3d(5/2) core-level photoemission spectra of cubic ErCo2 was measured using bulk-sensitive hard X-ray photoemission spectroscopy. Theoretical calculation reproduced the observed LD, and the result showed that the observed result does not contradict the suggested Gamma(3)(8) ground state. Theoretical calculation further showed a linear relationship between the LD size and the size of the fourth-order multipole moment of the Er3+ ion, which is proportional to the expectation value < O-4(0) + 5O(4)(4)>, where O-n(m) are the Stevens operators. These analyses indicate that the LD in 3d photoemission spectra can be used to quantify the average fourth-order multipole moment of rare-earth atoms in a cubic crystal electric field.

Název v anglickém jazyce

Rare- earth fourth-order multipole moment in cubic ErCo2 probed by linear dichroism in core-level photoemission

Popis výsledku anglicky

We developed a method to experimentally quantify the fourth-order multipole moment of the rare-earth 4f orbital. Linear dichroism (LD) in the Er 3d(5/2) core-level photoemission spectra of cubic ErCo2 was measured using bulk-sensitive hard X-ray photoemission spectroscopy. Theoretical calculation reproduced the observed LD, and the result showed that the observed result does not contradict the suggested Gamma(3)(8) ground state. Theoretical calculation further showed a linear relationship between the LD size and the size of the fourth-order multipole moment of the Er3+ ion, which is proportional to the expectation value < O-4(0) + 5O(4)(4)>, where O-n(m) are the Stevens operators. These analyses indicate that the LD in 3d photoemission spectra can be used to quantify the average fourth-order multipole moment of rare-earth atoms in a cubic crystal electric field.

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

<a href="/cs/project/GA16-03593S" target="_blank" >GA16-03593S: Magnetismus f-elektronových intermetalik</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of the Physical Society of Japan

ISSN

0031-9015

e-ISSN

—

Svazek periodika

87

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

JP - Japonsko

Počet stran výsledku

5

Strana od-do

—

Kód UT WoS článku

000426732000006

EID výsledku v databázi Scopus

2-s2.0-85043226826