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Planar Hall Effect : Detection of Ultra Low Magnetic Fields and a Study of Stochasticity in Magnetization Reversal
(2018-08-09)
In the present thesis, we have explored multiple aspects concerning the stochasticity
of magnetic domain wall motion during magnetization reversal, all of which
originated from our initial study of magnetic field sensing ...
Studies of "clean" and "disordered" Bilayer Optical Lattice Systems Circumventing the 'fermionic Cooling-problem'
(2018-09-04)
The advancement in the eld of cold-atoms has generated a lot of interest in the condensed matter community. Cold-atom experiments can simulate clean, disor-der/impurity free systems very easily. In these systems, we have ...
Electrical Transport in Si:P and Ge:P δ-doped Systems
(2018-07-30)
Doped semiconductor systems have for decades provided an excellent platform to study novel concepts in solid state physics such as quantum hall effect, metal-to-insulator transition (MIT), weak localization and many body ...
Dynamical Imprint of Dark Matter Halo and Interstellar Gas on Spiral Structure in Disk Galaxies
(2018-08-29)
The topic of this thesis deals with the spiral structure in disk galaxies with a specific aim of probing the influence of the dark matter halo and the interstellar gas on the origin and longevity of the spiral arms in ...
Establishing Super- and Sub-Chandrasekar Limiting Mass White Dwarfs to Explain Peculiar Type La Supernovae
(2018-06-23)
A white dwarf is most likely the end stage of a low mass star like our Sun, which results when the parent star consumes all the hydrogen in its core, thus bringing fusion to a halt. It is a dense and compact object, where ...
Nanodevices of Graphene, Carbon Nanotubes and Flow Behaviour of Graphene Oxide Gel
(2018-05-09)
In the last three decades carbon nanomaterials such as fullerenes, carbon nanotubes and graphene have attracted significant attention from the scientific community due to their unique electronic, optical, thermal, mechanical ...
Dynamics of Spiral and Scroll Waves in a Mathematical Model for Human-Ventricular Tissue : The Effects of Fibroblasts, Early-after depolarization, and Heterogeneities
(2018-07-09)
This thesis is devoted to the study of the dynamics of spiral and scroll waves in a mathematical model for cardiac tissue. We study the effects of the presence of heterogeneities on electrical-wave dynamics. The heterogeneities ...
Growth and Studies of Phase Transitions in Multifunctional Perovskite Materials
(2018-06-11)
Crystal growth and characterization of few multifunctional materials with perovskite (ABX3) structure are discussed in this thesis. Efforts were made to modify the magnetic and electric behaviour of these materials by ...
Micro-Newton Force Measurement and Actuation : Applied to Genetic Model Organisms
(2018-07-10)
Mechanical forces have been observed to affect various aspects of life, for example, cell differentiation, cell migration, locomotion and behavior of multicellular organisms etc. Such forces are generated either by external ...
Structural, Optical and Electrical Studies on Multi-Functional Organic Single Crystals
(2018-07-09)
In this thesis, the physical properties of certain multi-functional organic crystals were studied in detail. This study involves the growth of single crystals of Glucuronic acidγ-lactone (GAL), Imidazoliumtartarate (IMLT), ...