Magnetic phase coexistence and metastability caused by the first-order magnetic phase transition in the Heusler compound Mn2PtGa

Nayak AK, Sahoo R, Mejia CS, Nicklas M, Felser C (2015)

Publication Type: Journal article

Publication year: 2015

Journal

Journal of Applied Physics AIP Publishing

Book Volume: 117

Article Number: 17D715

Journal Issue: 17

DOI: 10.1063/1.4916757

Abstract

The Heusler compound Mn2PtGa exhibits a first-order ferrimagnetic (FI) to antiferromagnetic (AFM) phase transition, in contrary to the conventional martensitic structural transition displayed by their close relatives, the Heusler shape-memory alloys. With the help of isofield and isothermal magnetization experiments as well as magnetic relaxation measurements, we exemplify the presence of a magnetic-phase coexistence and a metastable magnetic behavior below the FI-AFM phase transition. Field cooling across the FI-AFM transition leads to a nucleation of a supercooled FI phase below the transition temperature, where the fraction of the supercooled phase depends upon the strength of the cooling field.

Involved external institutions

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

How to cite

APA:

Nayak, A.K., Sahoo, R., Mejia, C.S., Nicklas, M., & Felser, C. (2015). Magnetic phase coexistence and metastability caused by the first-order magnetic phase transition in the Heusler compound Mn2PtGa. Journal of Applied Physics, 117(17). https://doi.org/10.1063/1.4916757

MLA:

Nayak, A. K., et al. "Magnetic phase coexistence and metastability caused by the first-order magnetic phase transition in the Heusler compound Mn2PtGa." Journal of Applied Physics 117.17 (2015).

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