Jump to main content
Jump to site search


Zero-thermal-hysteresis Magnetocaloric Effect Induced by Magnetic Transition at Morphotropic Phase Boundary in Heusler Ni50Mn36Sb14-xInx Alloys

Abstract

With the development of magnetic refrigerant technology, the magnetic substances owning large magnetocaloric effect (MCE) with nearly zero thermal hysteresis are desired. Although Ni-Mn based Heusler alloys have been found to produce large MCE and attracted increasing attention recently, the occurrence of thermal hysteresis accompanying MCE due to the nature of first-order phase transition limits its application in the magnetic refrigeration. Up to now, an effective theory or method to eliminate this thermal hysteresis is still lacking. Here we propose to utilize the feature of magnetic transition at morphotropic phase boundary (MPB) to eliminate the thermal hysteresis and thus design a MPB-involved phase diagram in Heusler alloys of Ni50Mn36Sb14-xInx (x=0-14). As theoretically expected, the magnetic transition at MPB really yields a MCE with a negligible thermal hysteresis (~ 0K) and the refrigerant capacity arrives at a maximum value of 108.2 J kg-1 at the composition of x=9. Our findings provide an effective way to design the large MCE materials with zero thermal hysteresis.

Back to tab navigation

Publication details

The article was received on 28 Apr 2018, accepted on 14 Jun 2018 and first published on 14 Jun 2018


Article type: Paper
DOI: 10.1039/C8CP02720J
Citation: Phys. Chem. Chem. Phys., 2018, Accepted Manuscript
  •   Request permissions

    Zero-thermal-hysteresis Magnetocaloric Effect Induced by Magnetic Transition at Morphotropic Phase Boundary in Heusler Ni50Mn36Sb14-xInx Alloys

    Y. zhang, J. Wang, X. Ke, T. Chang, F. Tian, C. Zhou, S. Yang, M. Fang, K. Cao, Y. Chen, Z. Sun, W. Guan, X. Song and X. Ren, Phys. Chem. Chem. Phys., 2018, Accepted Manuscript , DOI: 10.1039/C8CP02720J

Search articles by author

Spotlight

Advertisements