Strain and order-parameter coupling in Ni-Mn-Ga Heusler alloys from resonant ultrasound spectroscopy

Mejia CS, Born NO, Schiemer JA, Felser C, Carpenter MA, Nicklas M (2018)

Publication Type: Journal article

Publication year: 2018

Journal

Physical Review B American Physical Society

Book Volume: 97

Article Number: 094410

Journal Issue: 9

DOI: 10.1103/PhysRevB.97.094410

Abstract

Resonant ultrasound spectroscopy and magnetic susceptibility experiments have been used to characterize strain coupling phenomena associated with structural and magnetic properties of the shape-memory Heusler alloy series Ni50+xMn25-xGa25 (x=0, 2.5, 5.0, and 7.5). All samples exhibit a martensitic transformation at temperature TM and ferromagnetic ordering at temperature TC, while the pure end member (x=0) also has a premartensitic transition at TPM, giving four different scenarios: TC>TPM>TM,TC>TM without premartensitic transition, TC≈TM, and TC

Involved external institutions

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

How to cite

APA:

Mejia, C.S., Born, N.-O., Schiemer, J.A., Felser, C., Carpenter, M.A., & Nicklas, M. (2018). Strain and order-parameter coupling in Ni-Mn-Ga Heusler alloys from resonant ultrasound spectroscopy. Physical Review B, 97(9). https://doi.org/10.1103/PhysRevB.97.094410

MLA:

Mejia, C. Salazar, et al. "Strain and order-parameter coupling in Ni-Mn-Ga Heusler alloys from resonant ultrasound spectroscopy." Physical Review B 97.9 (2018).

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