Articles written in Pramana – Journal of Physics
Volume 37 Issue 4 October 1991 pp 327-332
Using Wilson’s F-G matrix method a normal co-ordinate analysis of the spectral frequencies and form of the zero-wave vector vibrations of the high temperature superconductor, orthorhombic DyBa2Cu3O7 has been performed. The vibrational frequencies and the potential energy distribution of the 21 infrared-active and 15 Raman-active modes are presented. The potential constants employed here are presented and evaluated vibrational frequencies are compared with the available experimental values.
Volume 42 Issue 2 February 1994 pp 97-105
The Stokes parameters characterising the polarization of the photon in the
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