• Laser Raman spectroscopy and its applications — especially in structural phase transitions

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    • Keywords


      Raman applications; phase transitions; critical exponents

    • Abstract


      The usefulness of Raman spectroscopy as a powerful non-contact, nondestructive analytical tool has been well-demonstrated. A bird’s eye-view of various techniques used for the study of various types of structural phase transitions is given. A few modern applications of laser Raman spectroscopic studies have been mentioned. Thermal variations near critical transition region in the position, halfwidths, intensities and shapes of few thermo-sensitive bands in a few organic and inorganic salts and complexes have been used to deduce the critical exponents β and the activation energyU for orientational disorder of NCS ions and CH3NH3 type groups.

    • Author Affiliations


      H D Bist1

      1. Department of Physics and Centre for Laser Technology, Indian Institute of Technology, Kanpur - 208016, India
    • Dates

  • Journal of Chemical Sciences | News

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