Specific-heat study of Ce(Cu,Al)(4) compounds

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10139982" target="_blank" >RIV/00216208:11320/13:10139982 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jmmm.2013.04.043" target="_blank" >http://dx.doi.org/10.1016/j.jmmm.2013.04.043</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jmmm.2013.04.043" target="_blank" >10.1016/j.jmmm.2013.04.043</a>

Result language
angličtina
Original language name
Specific-heat study of Ce(Cu,Al)(4) compounds
Original language description
The CeCuxAl4-x, compounds crystallize in the tetragonal BaNiSn3-type structure for x between 0.7 and 1.1. The unit cell volume as well as the c/a ratio decreases with increasing x. All compounds order magnetically with the ordering temperature decreasingwith increasing the Cu content x. The specific heat in the ordered state follows the same type of behavior for all concentrations, suggesting similar type of magnons. The change of the specific heat in applied magnetic field, on the other hand, indicates transition between antiferromagnetic order in CeCuAl3 to ferromagnetic order in CeCu0.75Al3.25. The magnetic entropy at the ordering temperature is reduced below R In 2 due to the Kondo effect. Specific heat of corresponding LaCuxAl4-x compounds was measured to analyze properly the magnetic specific heat in the paramagnetic region. The crystal field energy schemes were estimated and compared with neutron scattering data.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
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

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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