Baric Transformation of the Character of the Magnetic Order and Magnetocaloric Properties in the Mn1-xCrxNiGe System

被引：0
|
作者：
Valkov, V. I. [1 ]
Golovchan, A. V. [1 ]
Gribanov, I. F. [1 ]
Andreychenko, E. P. [1 ]
Kovalev, O. Y. [1 ]
Mitsiuk, V. I. [2 ]
Mashirov, A. V. [3 ]
机构：
[1] Galkin Donetsk Inst Phys & Engn, Doneck 283048, Russia
[2] Natl Acad Sci Belarus, Res & Prod Ctr Mat Sci, Minsk 220072, BELARUS
[3] Russian Acad Sci, Kotelnikov Inst Radio Engn & Elect IRE, Moscow 125009, Russia
来源：
PHYSICS OF METALS AND METALLOGRAPHY | 2023年 / 124卷 / 11期
关键词：
magnetostructural phase transition; magnetocaloric effect; parameters of magnetic and structural orders; PHASE-TRANSITIONS;
D O I：
10.1134/S0031918X23601981
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The isobaric temperature dependences of the magnetization and the magnetocaloric characteristics of alloys of the Mn1 - xCrxNiGe system are studied in a constant magnetic field up to 10 kOe in the range of hydrostatic pressures up to 12 kbar. It has been established that, with increasing pressure, the implementation of helimagnetic ordering undergoes qualitative changes from the smooth hysteresis-free second-order phase transition to the first-order phase transitions accompanied by the appearance of a temperature hysteresis and an increase in the magnetocaloric effect. Based on the exchange-structural model, an explanation is given for the mechanism of baric transformation of magnetic and magnetocaloric properties.
引用
收藏
页码：1092 / 1098
页数：7
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