Magnetic hardening and antiferromagnetic/ferromagnetic phase coexistence in Mn1-xFexRu2 Sn Heusler solid solutions

Douglas JE, Levin EE, Pollock TM, Castillo JC, Adler P, Felser C, Kramer S, Page KL, Seshadri R (2016)

Publication Type: Journal article

Publication year: 2016

Journal

Physical Review B American Physical Society

Book Volume: 94

Article Number: 094412

Journal Issue: 9

DOI: 10.1103/PhysRevB.94.094412

Abstract

We investigate the average structure, local structure, and magnetic behavior of Heusler alloys of the composition Mn1-xFexRu2Sn, between antiferromagnetic (AFM) MnRu2Sn and ferromagnetic (FM) FeRu2Sn (often written Ru2MnSn and Ru2FeSn). Using a combination of neutron total scattering, electron microscopy, and Fe57 Mössbauer spectroscopy, we conclude that true solid solutions are formed across the compositional space investigated, with Fe substituting for Mn on the Heusler lattice, with little or no antisite disorder. Despite the lack of chemical phase separation, magnetic phase separation is present in compositions near x=0.50, where the coexistence of AFM and FM domains is confirmed by 15 K neutron diffraction. At these intermediate compositions a large increase in magnetic coercivity is observed, in excess of 1 kOe, attributed to local exchange interactions.

Involved external institutions

University of California US United States (USA) (US) Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids DE Germany (DE) Oak Ridge National Laboratory US United States (USA) (US)

How to cite

APA:

Douglas, J.E., Levin, E.E., Pollock, T.M., Castillo, J.C., Adler, P., Felser, C.,... Seshadri, R. (2016). Magnetic hardening and antiferromagnetic/ferromagnetic phase coexistence in Mn1-xFexRu2 Sn Heusler solid solutions. Physical Review B, 94(9). https://doi.org/10.1103/PhysRevB.94.094412

MLA:

Douglas, Jason E., et al. "Magnetic hardening and antiferromagnetic/ferromagnetic phase coexistence in Mn1-xFexRu2 Sn Heusler solid solutions." Physical Review B 94.9 (2016).

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