Optical and magneto-optical properties of epitaxial Mn2GaC MAX phase thin filmShow others and affiliations
2021 (English)In: Journal of Magnetism and Magnetic Materials, ISSN 0304-8853, E-ISSN 1873-4766, Vol. 528, article id 167803Article in journal (Refereed) Published
Abstract [en]
We report measurements of the dielectric permittivity, optical conductivity and magnetic circular dichroism (MCD) of the epitaxial Mn2GaC MAX-phase thin film in an external magnetic field of up to 200 mT, at temperatures of 296 and 140 K and 1.4 to 3.5 eV. The optical conductivity and MCD spectra show absorption peaks which are consistent with the interband electronic transitions for different positions of Mn, Ga, and C ions as confirmed by theoretical calculations of the spin-dependent density of electronic states. The well-known structural phase transition at 214 K is also seen in the changes of optical, magneto-optical and surface magnetic properties of Mn2GaC in our experiment.
Place, publisher, year, edition, pages
ELSEVIER , 2021. Vol. 528, article id 167803
Keywords [en]
MAX phases; Magnetism; Epitaxial thin films; Spectral magneto-ellipsometry; Magnetic circular dichroism
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-174946DOI: 10.1016/j.jmmm.2021.167803ISI: 000630182800018OAI: oai:DiVA.org:liu-174946DiVA, id: diva2:1543711
Note
Funding Agencies|government of the Russian Federation [075-15-2019-1886]; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)German Research Foundation (DFG) [405553726 - TRR 270]; Swedish Research Council (VR)Swedish Research Council [642-2013-8020]
2021-04-132021-04-132021-04-13Bibliographically approved