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Updated: Jul 31, 2025

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
Published on: January 21, 2016
Investigation of the inverse magnetocaloric effect with the fraction method
S Yuce1, E Kavak2, O Yildirim3
1Department of Physics, Science and Literature Faculty, Ondokuz Mayis University, Kurupelit 55139, Samsun, Turkey.
Abstract:
In this study, we examine Ni49Nb1Mn36In14(nom. at.%) magnetic shape memory alloy (MSMA) to illustrate the inverse magnetocaloric effect (MCE) using the fraction method. The magnetic entropy change,ΔSmag, was calculated with both, the fraction method and the thermomagnetic Maxwell relation. Our results demonstrate that there exists a large magnetization difference between field-cooling and field-heating histories in Ni49Nb1Mn36In14(nom. at.%) MSMA, which can be attributed to the pinning of lattice entropy and magnetic entropy, as it is well-known that the temperature and applied magnetic fields have an opposing effect on the total entropy change. In addition, we describe the inverse MCE and the contradictory roles on the total entropy change between the two stimuli via the fraction method.
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