Mn3GaC inverse perovskite thin films by magnetron sputtering from elemental targets

Andrejs Petruhins*, Arni Sigurdur Ingason, Sveinn Olafsson, Johanna Rosen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We have deposited epitaxial thin films of the inverse perovskite Mn3GaC using magnetron sputtering from elemental targets. Two substrates were used, MgO (111) and (100), resulting in corresponding orientation of the Mn3GaC thin films. Both samples displayed magnetic properties consistent with an AFM to FM transition at ∼170 K and a Curie temperature around 265 K, evaluated with vibrating sample magnetometry (in-plane measurements). These two ground states are further supported by first principles calculations. Based on that the two orientations of Mn3GaC display very similar magnetic properties, it can be concluded that shape anisotropy dominates over the material's easy axis.

Original languageEnglish
Article number106102
JournalMaterials Research Express
Volume7
Issue number10
DOIs
Publication statusPublished - Oct 2020

Bibliographical note

Publisher Copyright:
© 2020 The Author(s). Published by IOP Publishing Ltd.

Other keywords

  • first principles calculations
  • inverse perovskite
  • magnetic ground state
  • magnetism
  • thin films

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