Elastic softening due to the quadrupole interaction between the singlets in the crystal field of HoNiAl

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00572289" target="_blank" >RIV/68378271:_____/23:00572289 - isvavai.cz</a>

Výsledek na webu

<a href="https://journals.jps.jp/doi/10.7566/JPSCP.38.011105" target="_blank" >https://journals.jps.jp/doi/10.7566/JPSCP.38.011105</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.7566/JPSCP.38.011105" target="_blank" >10.7566/JPSCP.38.011105</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Elastic softening due to the quadrupole interaction between the singlets in the crystal field of HoNiAl

Popis výsledku v původním jazyce

The rare earth compound HoNiAl shows ferromagnetic and antiferromagnetic-type phase transitions at TC = 13 K and T1 = 5 K, respectively. To investigate the successive phase transitions and a quadrupole interaction, we measured the elastic modulus C66 in HoNiAl by means of ultrasonic spectroscopy. The transverse modulus C66 shows an elastic softening below 60 K. The softening continues down to TC, and then an elastic hardening and softening are observed at TC and T1, respectively, reflecting the magnetic phase transitions. The softening above TC is well reproduced by a Curie-Weiss-type equation, indicating that the softening originates from a quadrupole interaction between the singlets in the crystal electric field. A negative quadrupole-quadrupole coupling constant is obtained from a theoretical fitting, suggesting an antiferroquadrupolar-type interaction between Oxy-quadrupoles.

Název v anglickém jazyce

Elastic softening due to the quadrupole interaction between the singlets in the crystal field of HoNiAl

Popis výsledku anglicky

The rare earth compound HoNiAl shows ferromagnetic and antiferromagnetic-type phase transitions at TC = 13 K and T1 = 5 K, respectively. To investigate the successive phase transitions and a quadrupole interaction, we measured the elastic modulus C66 in HoNiAl by means of ultrasonic spectroscopy. The transverse modulus C66 shows an elastic softening below 60 K. The softening continues down to TC, and then an elastic hardening and softening are observed at TC and T1, respectively, reflecting the magnetic phase transitions. The softening above TC is well reproduced by a Curie-Weiss-type equation, indicating that the softening originates from a quadrupole interaction between the singlets in the crystal electric field. A negative quadrupole-quadrupole coupling constant is obtained from a theoretical fitting, suggesting an antiferroquadrupolar-type interaction between Oxy-quadrupoles.

Druh

D - Stať ve sborníku

CEP obor

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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

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

JPS Conference Proceedings

ISBN

978-4-89027-151-1

ISSN

2435-3892

e-ISSN

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Počet stran výsledku

5

Strana od-do

011105

Název nakladatele

Physical Society of Japan

Místo vydání

Tokyo

Místo konání akce

Sapporo

Datum konání akce

18. 8. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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