Correlation between the structure and thermomagnetic properties of pseudo-binary (Tb,Er)Ni2 solid solutions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00553360" target="_blank" >RIV/68378271:_____/21:00553360 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/21:10428400

Výsledek na webu

<a href="https://doi.org/10.1016/j.jallcom.2020.157870" target="_blank" >https://doi.org/10.1016/j.jallcom.2020.157870</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2020.157870" target="_blank" >10.1016/j.jallcom.2020.157870</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Correlation between the structure and thermomagnetic properties of pseudo-binary (Tb,Er)Ni2 solid solutions

Popis výsledku v původním jazyce

Magnetic and thermodynamic properties of the polycrystalline pseudo-binary Tb1-xErxNi2 (x = 0.25, 0.5, and 0.75) solid solutions are studied in accordance with the erbium substitution for terbium, which causes changing of the crystal structure. The Tb1-xErxNi2 solid solutions at room temperature were found to have the C15 Laves-phase superstructure rather than the C15 structure typical of the parent compounds, TbNi2 and ErNi2. The substitution of Er for Tb in Tb1-xErxNi2 decreases the ordering temperature, which corresponds to the second-order ferromagnet to paramagnet magnetic phase transition. The maximum magnetic entropy change of the Tb0·75Er0·25Ni2, Tb0·5Er0·5Ni2 and for Tb0·25Er0·75Ni2 compositions reaches 6.6 (12.7), 6.9 (13.8) and 7.5 (14.9) J/kgK for a magnetic field change of 2 (5) T, respectively. These pseudo-binary solid solutions show promise as materials for magnetic refrigerators operating within a specific low-temperature range.

Název v anglickém jazyce

Correlation between the structure and thermomagnetic properties of pseudo-binary (Tb,Er)Ni2 solid solutions

Popis výsledku anglicky

Magnetic and thermodynamic properties of the polycrystalline pseudo-binary Tb1-xErxNi2 (x = 0.25, 0.5, and 0.75) solid solutions are studied in accordance with the erbium substitution for terbium, which causes changing of the crystal structure. The Tb1-xErxNi2 solid solutions at room temperature were found to have the C15 Laves-phase superstructure rather than the C15 structure typical of the parent compounds, TbNi2 and ErNi2. The substitution of Er for Tb in Tb1-xErxNi2 decreases the ordering temperature, which corresponds to the second-order ferromagnet to paramagnet magnetic phase transition. The maximum magnetic entropy change of the Tb0·75Er0·25Ni2, Tb0·5Er0·5Ni2 and for Tb0·25Er0·75Ni2 compositions reaches 6.6 (12.7), 6.9 (13.8) and 7.5 (14.9) J/kgK for a magnetic field change of 2 (5) T, respectively. These pseudo-binary solid solutions show promise as materials for magnetic refrigerators operating within a specific low-temperature range.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/EF15_003%2F0000485" target="_blank" >EF15_003/0000485: Centrum nanomateriálů pro pokročilé aplikace</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

1873-4669

Svazek periodika

859

Číslo periodika v rámci svazku

Apr.

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

157870

Kód UT WoS článku

000614114500114

EID výsledku v databázi Scopus

2-s2.0-85097087704