Stress, strain and Raman shifts

By R. Angel, M. Murri, B. Mihailova, M. Alvaro. Zeitschrift für Kristallographie - Crystalline Materials, 2018

134 citations recorded by the source corpus.

Abstract The concept of the phonon-mode Grüneisen tensor is reviewed as method to determine the elastic strains across crystals from the changes in the wavenumbers of Raman-active phonon modes relative to an unstrained crystal. The symmetry constraints on the phonon-mode Grüneisen tensor are discussed and the consequences for which combinations of strains can be determined by this method are stated. A computer program for Windows, stRAinMAN, has been written to calculate strains from changes in Raman (or other phonon) mode wavenumbers, and vice-versa. It can be downloaded for free from www.rossangel.net.

Subfields: Ceramics and Composites, Geophysics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/87db0927da41890265a2ac5b5bb7e1d2c2249759