Experimental study of magnetocaloric effect in the two-level quantum system KTm(MoO4)(2)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10379298" target="_blank" >RIV/00216208:11320/18:10379298 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.physb.2017.09.083" target="_blank" >https://doi.org/10.1016/j.physb.2017.09.083</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physb.2017.09.083" target="_blank" >10.1016/j.physb.2017.09.083</a>

Result language
angličtina
Original language name
Experimental study of magnetocaloric effect in the two-level quantum system KTm(MoO4)(2)
Original language description
KTm(MoO4)(2) belongs to the family of binary alkaline rare-earth molybdates. This compound can be considered to be an almost ideal quantum two-level system at low temperatures. Magnetocaloric properties of KTm(MoO4)(2) single crystals were investigated using specific heat and magnetization measurement in the magnetic field applied along the easy axis. Large conventional magnetocaloric effect (-Delta S-M approximate to 10.3 J/(kg K)) was observed in the magnetic field of 5 T in a relatively wide temperature interval. The isothermal magnetic entropy change of about 8 J/(kgK) has been achieved already for the magnetic field of 2 T. Temperature dependence of the isothermal entropy change under different magnetic fields is in good agreement with theoretical predictions for a quantum two-level system with Delta approximate to 2.82 cm(-1). Investigation of magnetocaloric properties of KTm(MoO4)(2) suggests that the studied system can be considered as a good material for magnetic cooling at low temperatures.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/LM2011025" target="_blank" >LM2011025: MLTL - Magnetism and Low Temperature Laboratories - operation and development of national research infrastructure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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