Browsing Division of Physical and Mathematical Sciences by thesis submitted date"2008"
Now showing items 1-20 of 24
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Charge Transport In Transparent Single-Wall Carbon Nanotube Networks And Devices
(2010-06-02)Carbon nanotubes show a wide range of transport behavior that varies from ballistic to hopping regime, depending on the nature of disorder in the system. Minute variations in disorder can lead from weak to strong localization, ... -
Critical Behavior On Approaching A Double Critical Point In A Complex Mixture
(2010-08-25)This thesis reports the results of light-scattering measurements and visual investigations of critical phenomena in the complex mixture 1-propanol (1P) + water (W) + potassium chloride (KCl) which has a special critical ... -
Development Of Instrumentation For Electrical Switching Studies And Investigations On Switching And Thermal Behavior Of Certain Glassy Chalcogenides
(2010-07-08)The absence of long-range order in glassy chalcogenides provides the convenience of changing the elemental ratios and hence the properties over a wide range. The interesting properties exhibited by chalcogenide glasses ... -
Dynamics, Order And Fluctuations In Active Nematics : Numerical And Theoretical Studies
(2010-08-24)In this thesis we studied theoretically and numerically dynamics, order and fluctuations in two dimensional active matter with specific reference to the nematic phase in collections of self-driven particles.The aim is to ... -
ECR Plasma Deposition Of Carbon - Studies On DLC Coatings And Carbon Nanotubes
(2010-10-13)Recent developments in the field of nano-structured materials for technological as well as scientific prospective are quite interesting. In this context carbon plays a dominant role. Few examples such as carbon nanotubes ... -
Gravitational Waves From Inspiralling Compact Binaries : 3PN Polarisations, Angular Momentum Flux And Applications To Astrophysics And Cosmology
(2010-09-03)Binary systems comprising of compact objects like neutron stars (NS) and/or black holes (BH) lose their energy and angular momentum via gravitational waves (GW). Radiation reaction due to the emission of GW results in a ... -
Growth, Structural And Physical Properties Of Certain Antimony Based III-V Diluted Magnetic Semiconductors
(2010-07-20)Semiconductor devices are the building blocks of electronics and communication technology in the modern world. The charge, mass and spin of charge carriers in the semiconductor devices lay the foundations of the technology ... -
Instrumentation For Reverse Iontophoresis And Biosensor Capacitance Measurement
(2010-09-15)Iontophoresis is a method to enhance and regulate the transdermal drug delivery by application of an electric field to the skin. Application of small electric current (µ A) enhances transport of both charged and neutral ... -
An Investigation Of The Ferromagnetic Insulating State Of Manganites
(2010-09-22)Electrical conductance in the ferromagnetic insulating (FMI) phase of manganites has been experimentally investigated. The investigations were performed on single crystals of compositions La0.82Ca0.18MnO3 and Nd0.7Pb0.3MnO3. ... -
Magnetization, Magnetotransport And Electron Magnetic Resonance Studies Of Doped Praseodymium And Bismuth Based Charge Ordered Manganites
(2010-09-06)Studies on perovskite rare earth manganites of general formula R1-xAxMnO3 (where R is a trivalent rare earth ion such as La3+, Pr3+ etc. and A is a divalent alkaline earth ion such as Ca2+, Sr2+, Ba2+, have been a very ... -
Orbital Evolution And Super-Orbital Flux Variations In X-ray Binary Pulsars
(2010-08-23)X-ray binaries are binary stellar systems containing a compact object and a normal companion star which are gravitationally bound and rotate about a common center of mass. The compact object accretes matter from the companion ... -
Origin Of The Extragalactic Gamma-Ray Background
(2013-10-01)It is evident that the origin of EGRB is not well established. In this thesis I examine the unresolved discrete origin of EGRB. The contribution from normal galaxies, starburst galaxies and AGNs to the EGRB is examined. ... -
Phase Behaviour & Dynamics Of An Agitated Monolayer Of Granular Rods
(2010-10-05)In this thesis we have explored the no equilibrium phase behavior and dynamics of an agitated monolayer of macroscopic rod-like particles. The main objective of this thesis was to highlight the ways in which even the ... -
Polarized Line Formation In Turbulent And Scattering Media
(2010-10-13)This thesis is devoted to improve our knowledge on the theory of polarized line formation in a magneto-turbulent medium, and in a scattering dominated magnetized medium, where partial redistribution (PRD) effects become ... -
Semi-Markov Processes In Dynamic Games And Finance
(2010-07-01)Two different sets of problems are addressed in this thesis. The first one is on partially observed semi-Markov Games (POSMG) and the second one is on semi-Markov modulated financial market model. In this thesis we study ... -
Separated Local Field NMR Spectroscopy In Partially Ordered Systems - New Methodologies And Applications
(2010-09-06)Dipolar couplings are one of the major source of structural information. Due to their dependence on the distance between the nuclei and the angle of orientation of the dipolar vector with respect to the magnetic field, ... -
Small Angle Sensing/Measurement Using 'Pattern Imaging' Method - Few Investigations
(2010-07-14)The present thesis concerns with a few investigations on sensing/measurement of small angle rotation/tilt using Pattern Imaging Method. The methodology involves looking at the tailored-objects located adjacent to the ... -
Soft Matter Under Electric Field And Shear
(2010-06-09)‘Soft condensed matter’ is a newly-emerged sub-discipline of physics concerned with the study of systems that are mechanically soft such as colloids, emulsions, surfactants, polymers, liquid crystals, granular media and ... -
Sol-Gel Derived Titania Films And Their Potential Application As Gas Sensor
(2010-10-25)Today there is a great deal of interest in the development of gas sensors for various applications like monitoring of toxic gases, detection in oil reservoirs, mines, homes etc. Solid-state gas sensors have many advantages ... -
Spatially Resolved Studies Of Electronic Phase Separation And Microstructure Effects In Hole Dopped Manganites
(2010-08-17)The main focus of this thesis is in understanding the role of phase separation and microstructure in determining the physical properties of manganites. We also aim to be able to tune certain material properties using ...