Open AccessSubstituted (Nd,Pr)2Fe14B alloys: structural features and magnetic properties
Author(s) -
Г. А. Политова,
И. С. Терешина,
T. P. Kaminskaya,
A. A. Viryus,
M. Paukov,
A.A. Lukin,
A.V. Andreev
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1236/1/012016
Subject(s) - magnetic refrigeration , curie temperature , materials science , condensed matter physics , phase diagram , magnetic shape memory alloy , magnetic field , phase transition , thermodynamics , phase (matter) , ferromagnetism , magnetization , chemistry , magnetic domain , physics , organic chemistry , quantum mechanics
In this work the magnetic properties of (Nd,Pr) 2 Fe 14 B alloys have been investigated in a wide range of temperatures (4.2 – 700 K) and magnetic fields (up to 14 T). The features of the structure were studied using two methods: SEM and AFM/MFM. Magnetic phase transition diagram was constructed. In the region of magnetic phase transitions (Curie and spin- reorientation transition temperatures) the value of the magnetocaloric effect was determined as an entropy change. The constancy of the magnetocaloric effect value for (Nd,Pr) 2 Fe 14 B alloys has been established.