Long-term stability and thickness dependence of magnetism in thin (Cr0.5Mn0.5)2GaC MAX phase films. Issue 4 (3rd April 2019)

• Record Type: Journal Article
• Authors: Novoselova, Iuliia P.; Petruhins, Andrejs; Wiedwald, Ulf; Weller, Dieter; Rosen, Johanna; Farle, Michael; Salikhov, Ruslan
• Is Part Of: Materials research letters. Volume 7:Issue 4(2019)
• Page Start: 159
• Page End: 163
• Publication Date: 2019-04-03
• Subjects: Magnetic MAX phases -- thin films -- surface anisotropy -- ferromagnetic resonance; Materials science -- Research -- Periodicals; Biomedical materials -- Research -- Periodicals; Composite materials -- Research -- Periodicals; Biomedical materials -- Research; Composite materials -- Research; Materials science -- Research; Periodicals; 620.1105
• DOI: 10.1080/21663831.2019.1570980
• Languages: English
• ISSNs: 2166-3831

Abstract

ABSTRACT: The thickness dependence and long-term stability of the magnetic properties of epitaxial (Cr0.5 Mn0.5 )2 GaC MAX phase films on MgO (111) were investigated. For 12.5- to 156-nm-thick films, which corresponds to 10–125 c -axis unit cells, samples were found to be phase pure with negligible c -axis lattice strain of less than 10 −4 nm even for the thinnest films. No influence of the interface layers on the magnetic anisotropy, the magnetization or the para- to ferromagnetic phase transition was observed. All samples remained stable for more than one year in ambient conditions. GRAPHICAL ABSTRACT: IMPACT STATEMENT: The complex temperature- and magnetic field-dependent magnetism of electrically conducting (Cr0.5 Mn0.5 )2 GaC MAX phase films is environmentally robust over one year and independent on interface effects.