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

Jonathan E. Spanier; Surojit Gupta; Maher Amer; Michel W. Barsoum

doi:10.1103/PhysRevB.71.012103

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

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

Mechanical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We report on the Raman spectra of Ti ₃ SiC ₂ (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.

Original language	English
Article number	012103
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	71
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.71.012103 https://doi.org/10.1103/PhysRevB.71.012103
State	Published - Jan 2005

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Disciplines

Engineering
Materials Science and Engineering
Mechanical Engineering

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Vibrational Behavior of the Mn+1AXn</emFinal published version, 365 KBLicense: CC BY

Cite this

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

abstract = " We report on the Raman spectra of Ti 3 SiC 2 (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.",

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T1 - Vibrational behavior of the M n+1AX n phases from first-order Raman scattering (M=Ti, V, Cr, A=Si, X=C, N)

AU - Spanier, Jonathan E.

AU - Gupta, Surojit

AU - Amer, Maher

AU - Barsoum, Michel W.

PY - 2005/1

Y1 - 2005/1

N2 - We report on the Raman spectra of Ti 3 SiC 2 (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.

AB - We report on the Raman spectra of Ti 3 SiC 2 (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.

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