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Paper
Raman scattering and phase transitions in stressed SrTiO3
Abstract
Application of a [111] uniaxial stress to the low-temperature phase of strontium titanate is found to shift the frequency of the lowest two Raman-active modes. Comparison with a phenomenological theory shows that the results support other evidence for a stress-induced tetragonal-to-trigonal phase transition. Application of stress in the [110] direction produced no evidence of a phase change. © 1971.