Vibrational behavior of the ${M}_{n+1}A{X}_{n}$ phases from first-order Raman scattering $(M=\mathrm{Ti},\mathrm{V},\mathrm{Cr},$ $A=\mathrm{Si},$ $X=\mathrm{C},\mathrm{N})$

Vibrational behavior of the $M_{n + 1} A X_{n}$ phases from first-order Raman scattering $(M = Ti, V, Cr,$ $A = Si,$ $X = C, N)$

Jonathan E. Spanier, Surojit Gupta, Maher Amer, and Michel W. Barsoum

Phys. Rev. B 71, 012103 – Published 21 January 2005

Abstract

We report on the Raman spectra of ${Ti}_{3} Si C_{2}$ (312), $M_{2} Al C (211)$ ( $M = Ti$ , V, Cr, and Nb) and ${Ti}_{4} Al N_{3}$ (413), as representative compounds from the family of $M_{n + 1} A X_{n}$ phases. Intense and narrow first-order Raman peaks are observed, and we present an analysis of the spectra based on symmetry considerations and from results of first-principles calculations of phonon frequencies. The agreement between experimental and calculated mode energies is excellent. The identification of the modes enables application of Raman scattering as a diagnostic tool for the detailed study of the structural and physical properties of this family of compounds and their engineered solid solutions.

Received 24 June 2004

DOI:https://doi.org/10.1103/PhysRevB.71.012103

Authors & Affiliations

Jonathan E. Spanier^*, Surojit Gupta, Maher Amer^†, and Michel W. Barsoum

Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, USA

^*Author to whom correspondence should be addressed. Email address: spanier@drexel.edu
^†Present address: Department of Mechanical and Materials Engineering, Wright State University, Dayton OH 45435.

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Vol. 71, Iss. 1 — 1 January 2005

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Physical Review B

covering condensed matter and materials physics

Vibrational behavior of the $M_{n + 1} A X_{n}$ phases from first-order Raman scattering $(M = Ti, V, Cr,$ $A = Si,$ $X = C, N)$

Jonathan E. Spanier, Surojit Gupta, Maher Amer, and Michel W. Barsoum

Phys. Rev. B 71, 012103 – Published 21 January 2005

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Physical Review B

covering condensed matter and materials physics

Vibrational behavior of the Mn+1AXn phases from first-order Raman scattering (M=Ti,V,Cr, A=Si, X=C,N)

Jonathan E. Spanier, Surojit Gupta, Maher Amer, and Michel W. Barsoum

Phys. Rev. B 71, 012103 – Published 21 January 2005

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Vibrational behavior of the $M_{n + 1} A X_{n}$ phases from first-order Raman scattering $(M = Ti, V, Cr,$ $A = Si,$ $X = C, N)$