Magnetic and magnetocaloric properties of single Crystal (Nd0.5Pr0.5)2Fe14B
Magnetic and magnetocaloric properties of single Crystal (Nd0.5Pr0.5)2Fe14B
Politova, G. A.; Tereshina, I. S.; Gorbunov, D. I.; Paukov, M. A.; Andreev, A. V.; Grechishkin, R. M.; Rogacki, K.
Abstract
In this work the magnetic and magnetocaloric properties of a (Nd0.5Pr0.5)2Fe14B single crystal have been investigated in a wide range of temperatures and magnetic fields. Magnetic phase transition temperatures (spin-reorientation transition (SRT) at TSR = 73 K and Curie point at Tc = 570 K) were determined together with the values of saturation magnetization Ms and magnetocrystalline anisotropy constants K1 and K2. In the vicinity of a spin-reorientation magnetic phase transition, the value of the magnetocaloric effect was determined as an isothermal magnetic entropy change (DSM). The universal curve of ΔS´(ʘ) around TSR under various magnetic field changes has been constructed by using a phenomenological procedure. It is found that this approach is applicable to materials with a second-order spin-reorientation phase transition.
Involved research facilities
- High Magnetic Field Laboratory (HLD)
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Journal of Alloys and Compounds 751(2018), 283-288
DOI: 10.1016/j.jallcom.2018.04.120
Cited 14 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-27500