Synthesis of atomically layered and chemically ordered rare-earth (RE) i-MAX phases; (Mo2/3RE1/3)2GaC with RE = Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu. Issue 11 (2nd November 2019)

• Record Type: Journal Article
• Authors: Petruhins, Andrejs; Lu, Jun; Hultman, Lars; Rosen, Johanna
• Is Part Of: Materials research letters. Volume 7:Issue 11(2019)
• Page Start: 446
• Page End: 452
• Publication Date: 2019-11-02
• Subjects: i-MAX phase -- atomic laminate -- chemical order -- materials synthesis -- rare earth elements -- magnetism; 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: 10.1080/21663831.2019.1644684
• Languages: English
• ISSNs: 2166-3831

Abstract

ABSTRACT: We report the synthesis of eight new members of the i -MAX family, of the formula (Mo2/3 RE1/3 )2 GaC, where RE = Gd, Tb, Dy, Ho, Er, Tm, Lu, and Yb, the latter not previously incorporated in a MAX phase. The structure and composition of powder samples were investigated by X-ray diffraction, scanning transmission electron microscopy, and energy dispersive X-ray analysis combined with scanning electron microscopy. All phases showed evidence of an orthorhombic ( Cmcm ) structure, and the phases based on Er and Yb also crystallized in a monoclinic ( C 2/ c ) arrangement. The chemical order of the magnetic elements suggests interesting magnetic characteristics, with a high tuning potential through the range of attainable lanthanide elements. GRAPHICAL ABSTRACT: IMPACT STATEMENT: We present eight new in-plane ordered i -MAX phases based on rare earth elements, including Yb (new MAX phase element), with high magnetic characteristics tuning potential.