Frustrated magnetic structure of Y-substituted CePdAl studied by powder neutron diffraction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10105759" target="_blank" >RIV/00216208:11320/11:10105759 - isvavai.cz</a>

Výsledek na webu

<a href="http://iopscience.iop.org/1742-6596/303/1/012115" target="_blank" >http://iopscience.iop.org/1742-6596/303/1/012115</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/303/1/012115" target="_blank" >10.1088/1742-6596/303/1/012115</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Frustrated magnetic structure of Y-substituted CePdAl studied by powder neutron diffraction

Popis výsledku v původním jazyce

CePdAl is a heavy-fermion antiferromagnet with TN = 2:7 K, crystallizing in the ZrNiAl-type structure. The magnetic structure is described by the propagation vector k= (1/2, 0, ), = 0.35, with the cerium magnetic moments aligned along the c-axis. One third of magnetic moments remains disordered due to the geometrical frustration. Specific heat measurements on substituted Ce1xYxPdAl compounds revealed strong reduction of TN with Y substitution and the antiferromagnetic order vanishes around x = 0:2. To investigate the microscopic details of the changes in the magnetic structure evoked by nonmagnetic ion substitution, we have performed an experiment on the powder neutron diffractometer E6 at HZB on the samples with x = 0:02; 0:06 and 0:1. Measurements showed the magnitude reduction of the ordered cerium moments with Y substitution while the propagation vector and other magnetic structure characteristics remain unchanged.

Název v anglickém jazyce

Frustrated magnetic structure of Y-substituted CePdAl studied by powder neutron diffraction

Popis výsledku anglicky

CePdAl is a heavy-fermion antiferromagnet with TN = 2:7 K, crystallizing in the ZrNiAl-type structure. The magnetic structure is described by the propagation vector k= (1/2, 0, ), = 0.35, with the cerium magnetic moments aligned along the c-axis. One third of magnetic moments remains disordered due to the geometrical frustration. Specific heat measurements on substituted Ce1xYxPdAl compounds revealed strong reduction of TN with Y substitution and the antiferromagnetic order vanishes around x = 0:2. To investigate the microscopic details of the changes in the magnetic structure evoked by nonmagnetic ion substitution, we have performed an experiment on the powder neutron diffractometer E6 at HZB on the samples with x = 0:02; 0:06 and 0:1. Measurements showed the magnitude reduction of the ordered cerium moments with Y substitution while the propagation vector and other magnetic structure characteristics remain unchanged.

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>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Journal of Physics: Conference Series

ISSN

1742-6588

e-ISSN

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Svazek periodika

303

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

4

Strana od-do

1-4

Kód UT WoS článku

000299084800115

EID výsledku v databázi Scopus

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