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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)
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http://hdl.handle.net/1860/1249
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| Title: | Vibrational behavior of the Mn+1AXn phases from first-order Raman scattering (M=Ti,V,Cr, A=Si, X=C,N) |
| Authors: | Spanier, Jonathan E.
Gupta, Surojit
Amer, Maher
Barsoum, Michel W. |
| Keywords: | Augmented-Wave Method
Ti3SIC2
Ti4ALN3
System |
| Issue Date: | 21-Jan-2005 |
| Publisher: | The American Physical Society |
| Citation: | Physical Review B: Condensed Matter and Materials Physics, 71(1): pp. 012103-1— 012103-4. Retrieved September 19, 2006 from http://www.mse.drexel.edu/max/pdf%20references/drexel_pdfs/papers/Vibrational%20behavior%20of%20MAX%20from%20first%20order%20raman.pdf. DOI: http://dx.doi.org/10.1103/PhysRevB.71.012103 |
| 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. |
| URI: | http://hdl.handle.net/1860/1249 |
| Appears in Collections: | Faculty Research and Publications (MSE)
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