Distinct field-induced ferroquadrupolar states for two different magnetic-field directions in DyNiAl

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00543936" target="_blank" >RIV/68378271:_____/21:00543936 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevB.103.195151" target="_blank" >https://doi.org/10.1103/PhysRevB.103.195151</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.103.195151" target="_blank" >10.1103/PhysRevB.103.195151</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Distinct field-induced ferroquadrupolar states for two different magnetic-field directions in DyNiAl

Popis výsledku v původním jazyce

The hexagonal compound DyNiAl undergoes ferromagnetic and antiferromagnetic-type magnetic phase transitions at TC = 30 K and T1 = 15 K, respectively. To investigate the 4f-electronic state and quadrupole interactions, we carried out ultrasonic measurements versus temperature and magnetic field. The transverse elastic moduli C44 and C66 show a prominent softening originating from an interlevel ferroquadrupolar-type interaction between the ground state and excited Kramers doublets. In magnetic fields applied along the [100] and [001] axes, we observed a field-induced phase transition. Because the quadrupole interaction is enhanced in high magnetic fields according to our calculations, we suggest a magnetic-field-induced ferroquadrupolar ordering of the electric quadrupoles Oxz and Oyz for fields applied along [100] and [001], respectively, with different quadrupolar order parameters depending on the field direction.

Název v anglickém jazyce

Distinct field-induced ferroquadrupolar states for two different magnetic-field directions in DyNiAl

Popis výsledku anglicky

The hexagonal compound DyNiAl undergoes ferromagnetic and antiferromagnetic-type magnetic phase transitions at TC = 30 K and T1 = 15 K, respectively. To investigate the 4f-electronic state and quadrupole interactions, we carried out ultrasonic measurements versus temperature and magnetic field. The transverse elastic moduli C44 and C66 show a prominent softening originating from an interlevel ferroquadrupolar-type interaction between the ground state and excited Kramers doublets. In magnetic fields applied along the [100] and [001] axes, we observed a field-induced phase transition. Because the quadrupole interaction is enhanced in high magnetic fields according to our calculations, we suggest a magnetic-field-induced ferroquadrupolar ordering of the electric quadrupoles Oxz and Oyz for fields applied along [100] and [001], respectively, with different quadrupolar order parameters depending on the field direction.

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

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

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

103

Číslo periodika v rámci svazku

19

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

195151

Kód UT WoS článku

000655901600002

EID výsledku v databázi Scopus

2-s2.0-85107114393