Structural, magnetic and magnetocaloric properties of HoNi2 and ErNi2 compounds ordered at low temperatures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00501227" target="_blank" >RIV/68378271:_____/18:00501227 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jallcom.2017.11.194" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2017.11.194</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2017.11.194" target="_blank" >10.1016/j.jallcom.2017.11.194</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structural, magnetic and magnetocaloric properties of HoNi2 and ErNi2 compounds ordered at low temperatures

Popis výsledku v původním jazyce

In this work we report on the structural, magnetic and magnetocaloric properties of polycrystalline HoNi2 and ErNi2 Laves-phase compounds. Powder X-ray diffraction studies at room temperature show that the compounds crystallize in the cubic C15 structure. The magnetic measurements reveal that the second-order magnetic phase transition from ferromagnetic to paramagnetic state appears at TC equal 13.5 K for HoNi2 and 6.5 K for ErNi2. Using direct measurements over a wide field range (up to 11 T), along with indirect methods, we have found low and high field regularities of the magnetocaloric effect characterized by the adiabatic temperature change, ΔTad, and the isothermal magnetic entropy change, ΔSmag. The magnetocaloric properties near the phase transition are discussed in the framework of the Landau theory for the second-order phase transitions.

Název v anglickém jazyce

Structural, magnetic and magnetocaloric properties of HoNi2 and ErNi2 compounds ordered at low temperatures

Popis výsledku anglicky

In this work we report on the structural, magnetic and magnetocaloric properties of polycrystalline HoNi2 and ErNi2 Laves-phase compounds. Powder X-ray diffraction studies at room temperature show that the compounds crystallize in the cubic C15 structure. The magnetic measurements reveal that the second-order magnetic phase transition from ferromagnetic to paramagnetic state appears at TC equal 13.5 K for HoNi2 and 6.5 K for ErNi2. Using direct measurements over a wide field range (up to 11 T), along with indirect methods, we have found low and high field regularities of the magnetocaloric effect characterized by the adiabatic temperature change, ΔTad, and the isothermal magnetic entropy change, ΔSmag. The magnetocaloric properties near the phase transition are discussed in the framework of the Landau theory for the second-order phase transitions.

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

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

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

—

Svazek periodika

735

Číslo periodika v rámci svazku

Feb

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

1088-1095

Kód UT WoS článku

000418518600128

EID výsledku v databázi Scopus

2-s2.0-85036453077