K. A. Korolev, A. P. Sivachenko, I. F. Gribanov, A. V. Golovchan, V. I. Kamenev, T. S. Sivachenko, A. V. Mashirov, V. I. Mitsiuk, E. P. Andreychenko, S. V. Taskaev, “Inverse magnetocaloric effect in the MnNi${}_{1-x}$Fe${}_x$Ge system”, Chelyab. Fiz.-Mat. Zh., 2020, Volume 5, Issue 4(2),Pages 569

This article is cited in 2 papers

Magnetocaloric Effect in Functional Materials

Inverse magnetocaloric effect in the MnNi${}_{1-x}$Fe${}_x$Ge system

K. A. Korolev^a, A. P. Sivachenko^a, I. F. Gribanov^a, A. V. Golovchan^a, V. I. Kamenev^a, T. S. Sivachenko^a, A. V. Mashirov^b, V. I. Mitsiuk^c, E. P. Andreychenko^d, S. V. Taskaev^ef

^a Donetsk Institute for Physics and Engineering named after A.A. Galkin, Donetsk, DPR
^b Kotelnikov Institute of Radio-Engineering and Electronics of RAS, Moscow, Russia
^c Scientific-Practical Materials Research Center of the National Academy of Sciences of Belarus, Minsk, Belarus
^d Donetsk National Technical University, Donetsk, DPR
^e Chelyabinsk State University, Chelyabinsk, Russia
^f South Ural State University (National Research University), Chelyabinsk, Russia

Abstract: The purpose of this work is to refine the experimental study of the magnetocaloric effect in MnNi${}_{1-x}$Fe${}_x$Ge single crystals. Single crystals of MnNi${}_{0.75}$Fe${}_{0.25}$Ge, MnNi${}_{0.8}$Fe$_{0.2}$Ge, MnNi${}_{0.9}$Fe${}_{0.1}$Ge were grown by the Bridgman method, and their magnetic and magnetocaloric properties were studied. It is shown that the magnitude of the inverse MCE strongly depends on the orientation of the single crystal. It is shown that in strong magnetic fields the inverse magnetocaloric effect on the AF-FM transition changes the sign with an increase in the magnetic field above 3 T.

Keywords: magnetocaloric effect, half-Heusler alloys.

UDC: 669.017

Received: 17.09.2020
Revised: 31.10.2020

DOI: 10.47475/2500-0101-2020-15416