Magnetic and magnetocaloric properties of Pr2-xNdxFe17 ribbons

Authors

Bishnu Dahal, South Dakota State University
Parashu Kharel, South Dakota State UniversityFollow
Thomas Ott, South Dakota State University
Wenyong Zhang, University of Nebraska - Lincoln
Shah R. Valloppilly, University of Nebraska - LincolnFollow
Ralph Skomski, University of Nebraska-LincolnFollow
David J. Sellmyer, University of Nebraska - LincolnFollow

ORCID IDs

Bishnu Dahal

Shah Valloppilly

Document Type

Article

Date of this Version

2019

Citation

AIP Advances 9, 035211 (2019)

Comments

© 2019 Author(s).

doi: 10.1063/1.5080105

Abstract

The structural, magnetic and magnetocaloric properties of Fe deficient Pr_2-xNd_xFe₁₇ (x = 0.5, 0.7) alloys prepared by arc-melting and melt- spinning have been investigated. The room temperature x-ray diffraction patterns show that the samples are nearly single-phase and crystallize in the rhombohedral Th₂Zn₁₇-type crystal structure. The Curie temperatures determined from the thermomagnetic curves are 302 K and 307 K for Pr_1.5Nd_0.5Fe₁₇ and Pr_1.3Nd_0.7Fe₁₇, respectively. The peak magnetic entropy change and the relative cooling power at field change of 50 kOe are 3.01 J/kgK and 345 J/kg for Pr_1.5Nd_0.5Fe₁₇, and 4.31 J/kgK and 487 J/kg for Pr_1.3Nd_0.7Fe₁₇, respectively. The absence of magnetic and thermal hysteresis with relatively high cooling efficiency suggests that the alloys have potential for magnetic refrigeration.