Physics of polymorphic transitions in CeRuSn

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10126220" target="_blank" >RIV/00216208:11320/12:10126220 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/12:10126220

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevB.86.054108" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.86.054108</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.86.054108" target="_blank" >10.1103/PhysRevB.86.054108</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Physics of polymorphic transitions in CeRuSn

Popis výsledku v původním jazyce

We report a detailed study of the polymorphic transitions in ternary stannide CeRuSn on high quality single crystals through a combination of x-ray diffraction experiments conducted at 300, 275, and 120 K, and measurements of the thermal expansion, magnetization, and resistivity, along main crystallographic axes. In addition, the transition was followed as a function of pressure up to 0.8 GPa. The present x-ray diffraction data show that the room temperature polymorph consists of the lattice doubled along the c axis with respect to the CeCoAl-type structure consistent with previous reports. Upon cooling, the compound undergoes two successive transitions, first to a quintuple (similar to 290 K) and than to a triple CeCoAl superstructure at similar to 225 K. The transitions are accompanied by a tremendous volume change due to a strong shrinking of the lattice along the c axis, which is clearly observed in thermal expansion. We advance arguments that the volume collapse originates from an

Název v anglickém jazyce

Physics of polymorphic transitions in CeRuSn

Popis výsledku anglicky

We report a detailed study of the polymorphic transitions in ternary stannide CeRuSn on high quality single crystals through a combination of x-ray diffraction experiments conducted at 300, 275, and 120 K, and measurements of the thermal expansion, magnetization, and resistivity, along main crystallographic axes. In addition, the transition was followed as a function of pressure up to 0.8 GPa. The present x-ray diffraction data show that the room temperature polymorph consists of the lattice doubled along the c axis with respect to the CeCoAl-type structure consistent with previous reports. Upon cooling, the compound undergoes two successive transitions, first to a quintuple (similar to 290 K) and than to a triple CeCoAl superstructure at similar to 225 K. The transitions are accompanied by a tremendous volume change due to a strong shrinking of the lattice along the c axis, which is clearly observed in thermal expansion. We advance arguments that the volume collapse originates from an

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GA202%2F09%2F1027" target="_blank" >GA202/09/1027: Exotické kvantové stavy v intermetalikách s 4f- a 5f-elektrony</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Physical Review B - Condensed Matter and Materials Physics

ISSN

1098-0121

e-ISSN

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Svazek periodika

86

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

000307441200001

EID výsledku v databázi Scopus

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