Vibrational Behavior of the M_n+1AX_n Phases from First-Order Raman Scattering (M=Ti,V,Cr, A=Si, X=C,N)

Authors

Jonathan E. Spanier
Surojit Gupta
Maher S. Amer, Wright State University - Main CampusFollow
Michel W. Barsoum

Document Type

Article

Publication Date

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.

Repository Citation

Spanier, J. E., Gupta, S., Amer, M. S., & Barsoum, M. W. (2005). Vibrational Behavior of the M_n+1AX_n Phases from First-Order Raman Scattering (M=Ti,V,Cr, A=Si, X=C,N). Physical Review B: Condensed Matter and Materials Physics, 71 (1), 012103.
https://corescholar.libraries.wright.edu/mme/280

DOI

10.1103/PhysRevB.71.012103