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.

Authors with CRIS profile

Claudia Felser

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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