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Advances in Condensed Matter Physics
Volume 2017, Article ID 2683789, 6 pages
Research Article

Phase Transitions and Magnetocaloric Properties in MnCo1−xZrxGe Compounds

1Department of Physics, Southern Illinois University, Carbondale, IL 62901, USA
2Department of Physics & Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA

Correspondence should be addressed to Anil Aryal; ude.uis@linalayra

Received 6 March 2017; Revised 6 May 2017; Accepted 15 May 2017; Published 13 June 2017

Academic Editor: Oleg Derzhko

Copyright © 2017 Anil Aryal et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The structural, magnetic, and magnetocaloric properties of () have been studied through X-ray diffraction, differential scanning calorimetry, and magnetization measurements. Results indicate that the partial substitution of Zr for Co in decreases the martensitic transition temperature (). For = 0.02, was found to coincide with the ferromagnetic transition temperature () resulting in a first-order magnetostructural transition (MST). A further increase in zirconium concentration ( = 0.04) showed a single transition at . The MST from the paramagnetic to ferromagnetic state results in magnetic entropy changes () of 7.2 J/kgK for = 5 T at 274 K for = 0.02. The corresponding value of the relative cooling power (RCP) was found to be 266 J/kg for = 5 T. The observed large value of MCE and RCP makes this system a promising material for magnetic cooling applications.