Large field-induced irreversibility in Ni-Mn based Heusler shape-memory alloys: A pulsed magnetic field study

Nayak AK, Mejia CS, D'Souza SW, Chadov S, Skourski Y, Felser C, Nicklas M (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Physical Review B - Condensed Matter and Materials Physics American Physical Society (APS)

Book Volume: 90

Article Number: 220408

Journal Issue: 22

DOI: 10.1103/PhysRevB.90.220408

Abstract

We present a pulsed magnetic field study on the magnetic and magnetostriction properties of Ni-Mn-Z (Z=In, Sn, and Sb) based Heusler shape-memory alloys. These materials generally display a field-induced magnetostructural transition that could lead to an irreversible phase transition, when measured near the martensitic transition temperature. Here, we show that independently of the transition temperature, the critical field for the phase transition sensitively depends on the main-group element in the sample. Irrespective of their compositions, all samples display a magnetization of around 2μB/f.u. in the martensite phase and about 6μB/f.u. in the cubic austenite phase. Our magnetic and magnetostriction measurements at low temperatures exhibit a partial or complete arrest of the high-field austenite phase below the reverse martensitic transition. This results in a large irreversibility with a hysteresis width as high as 24 T. We introduce a theoretical model to discuss the experimental results.

Involved external institutions

Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids DE Germany (DE) Helmholtz-Zentrum Dresden-Rossendorf (HZDR) DE Germany (DE)

How to cite

APA:

Nayak, A.K., Mejia, C.S., D'Souza, S.W., Chadov, S., Skourski, Y., Felser, C., & Nicklas, M. (2014). Large field-induced irreversibility in Ni-Mn based Heusler shape-memory alloys: A pulsed magnetic field study. Physical Review B - Condensed Matter and Materials Physics, 90(22). https://doi.org/10.1103/PhysRevB.90.220408

MLA:

Nayak, A. K., et al. "Large field-induced irreversibility in Ni-Mn based Heusler shape-memory alloys: A pulsed magnetic field study." Physical Review B - Condensed Matter and Materials Physics 90.22 (2014).

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