etd AT Indian Institute of Science: Recent submissions
Now showing items 401-420 of 8174
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Electronic structure of strongly correlated Systems from Ab-initio and model Hamiltonion approaches
Strong electron–electron interactions profoundly influence the properties of systems such as transition-metal, rare-earth, and actinide-based compounds, giving rise to a variety of exotic phenomena. In recent times, there ... -
Structural and devitrification studies of GeSe and CuAsSe glasses
Main Conclusions from the Present Studies Alternate Methods for Pair Correlation Function The search for alternate methods of obtaining the pair correlation function g(r)g(r)g(r) from the structure factor S(Q)S(Q)S(Q), ... -
Low-frequency variability of compact extragalactic radio sources.
Metre-wavelength flux-density variations in compact extragalactic radio sources on time-scales of several months to a few years indicate brightness temperatures up to 3½ orders of magnitude higher than the inverse Compton ... -
Some studies of conformal field theories on higher genus Riemann surfaces
The CFT in two dimensions is useful to understand critical phenomena of statistical mechanics in two dimensions [1,2]. The study of CFTs on sphere and higher genus Riemann surfaces is important because of the usefulness ... -
Electron Tunneling Studies on Normal and Superconducting oxides
In this final chapter, we shall summarize our important observations and suggest improvements and problems for further investigation. This research has been a learning experience for us as we had no prior experience in the ... -
Low voltage bias DC reactive sputtering of cermets.
Thin films of cermets are technologically important because their chemical composition and physical properties can be tailored as desired. A few important applications call for the easy and reproducible deposition of cermet ... -
An experimental study of the specific heat at the glass transition during cooling
In the preceding chapters we have demonstrated the continuous cooling method as a tool for the calorimetric study at the glass transition, bringing out several novel aspects observed in the specific heat measured at the ... -
Hysterisis in model spin systems.
In this thesis a systematic study of hysteresis in model spin systems is undertaken by constructing the first statistical-mechanical theory wherein spatial fluctuations of the order parameter are incorporated. The theory ... -
Developments in two dimensional NMR spectroscopy of multiple quantum coherences of couples spins in liquids
The pathway description provides a straightforward method of computing flip-angle dependence of various multiple quantum coherences in the 2D MQ and the 2D COSY spectroscopy. Using this flip-angle dependence it is possible ...