Browsing Division of Physical and Mathematical Sciences by Title
Now showing items 320-339 of 1356
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Evolution of the Magnetic Ground States with Lattice Distortion and Chemical Inhomogeneity in Doped Perovskite Oxides
(2018-04-18)The physics of doped transition metal perovskite has been an area of intense research in the last few decades due to their interesting magnetic and transport properties. Various exciting phenomena such as, colossal magneto ... -
Exact analytic solutions for some classes of partial differential equations
Exact solutions of linear partial differential equations with variable coefficients and those of nonlinear partial differential equations are dilEcult to obtain. The present thesis attempts to extend the existing methods ... -
Exchange Spring Behaviour in Magnetic Oxides
(2018-02-23)When a permanent magnet is considered for an application, the quantity that quantifies the usability of that material is the magnetic energy product (BH)max. In today’s world, rare earth transition metal permanent magnets ... -
Excursions in ill condensed quantum matter from amorphous topological insulators to fractional spins
Condensed matter physics is a fascinating subject where collective properties of many particle systems show exotic emergent phenomena, practically unpredictable from the behavior of individual constituents. Many basic ... -
Existence and implications of positively curved metrics on holomorphic vector bundles
This thesis is divided into two parts. In the first part, we study interpolating and uniformly flat hypersurfaces in complex Euclidean space. The study of interpolation and sampling in the Bargmann-Fock spaces on the complex ... -
Experimental and Molecular Dynamics Simulation Study of Viscosity of Polymer Nanocomposites
(2018-08-29)One of the important dynamic parameter characterizing the properties of polymer nanocomposite is viscosity. It is a quantity of interest on macroscopic scale also. A thorough study of viscosity in case of polymer nanocomposite ... -
Experimental And Theoretical Studies Towards The Development Of A Direct 3-D Diffuse Optical Tomographic Imaging System
(2014-06-02)Diffuse Optical Tomography is a diagnostic imaging modality where optical parameters such as absorption coefficient, scattering coefficient and refractive index distributions are recovered to form the internal tissue ... -
Experimental Investigation of Electrons In and Above Liquid Helium
Electrons on the surface of liquid helium form a nearly ideal 2-dimensional electron system (2DES). An electron density up to 2 × 10^9 cm-2, known as the critical electron density, can be achieved on the liquid helium ... -
Experimental Investigation of Multielectron Bubbles in Liquid Helium
(2017-11-28)Multielectron bubbles (MEBs) are micron sized cavities in liquid helium that contain electrons confined within a nanometer thick layer on the inner surface of a bubble. These objects present a rich platform to study the ... -
Experimental investigations on metal-insulator transition and structure in amorphous carbon films
Conductivity of carbon films prepared from TCPA at pyrolysis temperatures of 700°C, 800°C, and 900°C was measured by varying the temperature between 1.4 K to 300 K. To study the effect of substrates, films were deposited ... -
Experimental Studies in Quantum Optics using Diode Lasers
This thesis discusses experimental studies with vapor cells containing rubidium (Rb) or cesium (Cs) atoms. Transitions in the atoms (D1 and D2 lines) are accessed using diode lasers. Experiments are performed at room ... -
Experimental Studies Of Electron Spin Dynamics In Semiconductors Using A Novel Radio Frequency Detection Technique
(2015-08-05)A novel experimental setup has been realized to measure weak magnetic moments which can be modulated at radio frequencies (~1–5 MHz). Using an optimized radio-frequency (RF) pickup coil and lock-in amplifier, an experimental ... -
Experimental studies on n-type conduction in Bi Doped Ge-Se glasses : role of phase-separation and defects
In summary, the earlier evidence for phase separation in Ge??Se????Bi? glassy systems was discussed. Phase?separation evidence at both microscopic and macroscopic levels was also found in another Bi?doped glass system, ... -
An experimental study on thermoelectric transport at van der Waals interfaces
When two planar atomic or molecular layers are brought to sub-nanometer proximity, they form a van der Waals interface because the van der Waals force forms the dominant attractive force between them. The van der Waals ... -
Experiments on the 852 nm D2 Line of 133Cs with a Diode Laser System and their use in Measurement of the Permanent Electric Dipole Moment of the Electron
(2018-07-14)We give a brief introduction to atomic physics and the motivation behind our experiments in the first chapter. The electron’s electric dipole moment is an interesting quantity which is yet to be measured. In the 3rd Chapter, ... -
Exploration of multiferroicity, emergence of exchange bias effect and glassy magnetism in doped hexagonal rare-earth manganites
In recent days, the need for device miniaturization has led to immense research activities in the field of material science. It has become essential to discover and design new materials or to modify the existing materials ... -
Explorations in Quantum Machine Learning
Quantum Machine Learning is a rapidly developing field. In part 1 of this thesis, I benchmark common QML methods with the most popular datasets used in classical ML. I compare results from quantum and classical methods and ... -
Explorations in the Space of S-Matrices
S-matrix is one of the fundamental observables of the quantum theory of relativistic particles. The quantum dynamics of relativistic particles can be abstractly understood in terms of S-matrix bypassing a Lagrangian ...