Open AccessMn3GaC inverse perovskite thin films by magnetron sputtering from elemental targets
Author(s) -
Andrejs Petruhins,
Arni Sigurdur Ingason,
S. Ólafsson,
Johanna Rosén
Publication year - 2020
Publication title -
materials research express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 35
ISSN - 2053-1591
DOI - 10.1088/2053-1591/abc193
Subject(s) - magnetometer , thin film , sputter deposition , materials science , curie temperature , analytical chemistry (journal) , perovskite (structure) , anisotropy , inverse , sputtering , cavity magnetron , condensed matter physics , chemistry , crystallography , ferromagnetism , optics , nanotechnology , magnetic field , physics , geometry , mathematics , quantum mechanics , chromatography
We have deposited epitaxial thin films of the inverse perovskite Mn 3 GaC using magnetron sputtering from elemental targets. Two substrates were used, MgO (111) and (100), resulting in corresponding orientation of the Mn 3 GaC 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 Mn 3 GaC display very similar magnetic properties, it can be concluded that shape anisotropy dominates over the material’s easy axis.