Browsing Division of Physical and Mathematical Sciences by thesis submitted date"1981"
Now showing items 1-7 of 7
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Charged solution excitations and the vaccum state of.. field theories
This thesis describes some theoretical investigations on ?? field theories (i.e., theories governed by Lagrangians which are sixth-degree polynomials in ?) where ? is either a real or a complex scalar field. We work in ... -
Critical dielectric constant measurements and high pressure phase diagram studies in binary liquid sytem
The main conclusions of the present study have been summarised below. The data have been fitted to the extended scaling equation: C = C? (A t + B t? + …) The present study shows that the exponent (?) characterising the ... -
Electrical resistance and dielectric constant studies in a binary liquid system in the critical region
This thesis presents an experimental investigation of electrical resistance and dielectric constant anomalies in a critical binary liquid system (the polar + non-polar mixture methanol + cyclohexane). Since the critical ... -
Raman and infrared study of vibrational and rotational relaxations
Our data on the area-ratio of the split components of the Ag Raman line in potash alum show a clear departure from the Boltzmann distribution at temperatures below 150 K. Modification of the phonon-induced transition rates ... -
Studies in polarization switching characteristics of ferro electrics
Ferroelectrics are characterized by a macroscopic spontaneous polarisation whose direction can be reoriented by the application of a suitable electric field. This reorientation of the ferroelectric polarisation through the ...