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Vibrational Behavior of the Mn+1AXn Phases from First-Order Raman Scattering (M=Ti,V,Cr, A=Si, X=C,N)
Physical Review B: Condensed Matter and Materials Physics
  • Jonathan E. Spanier
  • Surojit Gupta
  • Maher S. Amer, Wright State University - Main Campus
  • Michel W. Barsoum
Document Type
Article
Publication Date
1-1-2005
Abstract
We report on the Raman spectra of Ti3SiC2 (312), M2AlC(211) (M=Ti, V, Cr, and Nb) and Ti4AlN3 (413), as representative compounds from the family of Mn+1AXn 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.
Comments

© American Physical Society. The original publication is available at https://doi.org/10.1103/PhysRevB.71.012103.

DOI
10.1103/PhysRevB.71.012103
Citation Information
Jonathan E. Spanier, Surojit Gupta, Maher S. Amer and Michel W. Barsoum. "Vibrational Behavior of the Mn+1AXn Phases from First-Order Raman Scattering (M=Ti,V,Cr, A=Si, X=C,N)" Physical Review B: Condensed Matter and Materials Physics Vol. 71 Iss. 1 (2005) ISSN: 10980121
Available at: http://works.bepress.com/maher_amer/55/