Magnetocaloric Effect in Ni50Mn36Sb14–xZx (Z = Al, Ge; x = 0, 2) Heusler Alloys
- Authors: Emelyanova S.M.1, Bebenin N.G.1, Dyakina V.P.1, Chistyakov V.V.1, Dyachkova T.V.2, Tyutyunnik A.P.2, Wang R.L.3, Yang C.P.3, Sauerzopf F.4, Marchenkov V.V.1,5
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Affiliations:
- Institute of Metal Physics
- Institute of Solid State Chemistry
- Hubei University
- Atominstitut, TU Wien
- Ural Federal University
- Issue: Vol 119, No 2 (2018)
- Pages: 121-126
- Section: Electrical and Magnetic Properties
- URL: https://journals.rcsi.science/0031-918X/article/view/167390
- DOI: https://doi.org/10.1134/S0031918X18020047
- ID: 167390
Cite item
Abstract
The temperature dependences of the electrical resistivity and magnetization of the Ni50Mn36Sb14–xZx (Z = Al, Ge; x = 0; 2) alloys have been used to determine the characteristic phase transition temperatures. The isothermal entropy change ΔS was determined using Maxwell’s equation and the field dependences of magnetization. The partial substitution of Ge for Sb has been shown to result in a slight increase in ΔS and a shift in the ΔS maximum to the low-temperature range. The substitution of Al for Sb leads to a decrease in the effect and shift in the ΔS maximum to the high-temperature range. It has been found that the maximum magnetocaloric effect has been observed for the Ni50Mn36Sb12Ge2 composition and is equal to ΔS = 1.3 J/(kg K) in a field change of 10 kOe.
About the authors
S. M. Emelyanova
Institute of Metal Physics
Author for correspondence.
Email: emelyanova@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620137
N. G. Bebenin
Institute of Metal Physics
Email: emelyanova@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620137
V. P. Dyakina
Institute of Metal Physics
Email: emelyanova@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620137
V. V. Chistyakov
Institute of Metal Physics
Email: emelyanova@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620137
T. V. Dyachkova
Institute of Solid State Chemistry
Email: emelyanova@imp.uran.ru
Russian Federation, ul. Pervomaiskaya 91, Ekaterinburg, 620990
A. P. Tyutyunnik
Institute of Solid State Chemistry
Email: emelyanova@imp.uran.ru
Russian Federation, ul. Pervomaiskaya 91, Ekaterinburg, 620990
R. L. Wang
Hubei University
Email: emelyanova@imp.uran.ru
China, Wuhan, 430062
C. P. Yang
Hubei University
Email: emelyanova@imp.uran.ru
China, Wuhan, 430062
F. Sauerzopf
Atominstitut, TU Wien
Email: emelyanova@imp.uran.ru
Austria, Vienna, 1020
V. V. Marchenkov
Institute of Metal Physics; Ural Federal University
Email: emelyanova@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620137; ul. Mira 19, Yekaterinburg, 620002