Open AccessОсобенности формирования магнитокалорических явлений в системах Mn-=SUB=-1-t-=/SUB=-Ti-=SUB=-t-=/SUB=-As и Mn-=SUB=-1-x-=/SUB=-Cr-=SUB=-x-=/SUB=-NiGe
Author(s) -
V. I. Val’kov,
I. F. Gribanov,
B. M. Todris,
A. V. Golovchan,
В.И. Митюк
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.06.45985.13m
Subject(s) - magnetic refrigeration , orthorhombic crystal system , ferromagnetism , hexagonal crystal system , paramagnetism , condensed matter physics , materials science , lattice (music) , crystallography , crystal structure , magnetization , chemistry , physics , magnetic field , quantum mechanics , acoustics
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.