V. I. Val'kov, I. F. Gribanov, B. M. Todris, A. V. Golovchan, V. I. Mitsiuk, “Features of formation of the magnetocaloric phenomena in Mn$_{1-t}$Ti$_{t}$As and Mn$_{1-x}$Cr$_{x}$NiGe systems”, Fizika Tverdogo Tela, 2018, Volume 60, Issue 6,Pages 1113

This article is cited in 3 papers

International conference ''Phase transitions, critical and nonlinear phenomena in condensed matter'', Makhachkala, September 6-9, 2017
Magnetism

Features of formation of the magnetocaloric phenomena in Mn$_{1-t}$Ti$_{t}$As and Mn$_{1-x}$Cr$_{x}$NiGe systems

V. I. Val'kov^a, I. F. Gribanov^a, B. M. Todris^a, A. V. Golovchan^ab, V. I. Mitsiuk^c

^a O O Galkin Donetsk Institute for Physics and Engineering, National Academy of Sciences of Ukraine
^b Donetsk National University
^c Scientific-Practical Materials Research Centre of NAS of Belarus, Minsk, Belarus

Abstract: The magnetocaloric properties of the systems exhibiting magnetic (paramagnetism (PM)–ferromagnetism (FM)) and structural (hexagonal lattice–orthorhombic lattice) transitions separated (overlapped) in temperature are analyzed in terms of a model of interacting parameters of magnetic and structural orders. It is shown that the magnetocaloric characteristics of the system can increase or decrease during overlapping of the structural ($P 6_3/mmc$ – $P_nma$) and magnetic (PM–FM) transitions in the dependence of the character of combination of the low-symmetric orthorhombic ($P_nma$) and high-symmetric hexagonal ($P 6_3/mmc$) phases with a ferromagnetic order.

DOI: 10.21883/FTT.2018.06.45985.13M