Browsing Physics (PHY) by Title
Now showing items 290309 of 453

Preparation, Characterization And Ionic Conductivity Studies On Certain Fast Ionic Conductors
(20110120)Fast ionic conductors, i.e. materials in which charge transport mainly occurs through the motion of ions, are an important class of materials with immense scope for industrial applications. There are different classes of ... 
Probing Anisotropic Interactions In Solid State NMR : Techniques And Applications
(20110630)The thesis aims at methodological developments in Nuclear Magnetic Resonance (NMR) and study of oriented samples like liquid crystals and single crystals and powder samples. Though methodological development in solid state ... 
Probing chargedensity waves and superconductivity in lowdimensional systems
The recent advent of twodimensional materials has led to the discovery of materials with fascinating phase diagrams. These systems have exciting electronic phases which coexist or compete with each other. Here in this ... 
Probing effect of disorder in the electrical and optical properties on van der Waals heterostructure
In this thesis, we studied the transport properties of singlelayer graphene and singlelayer to fewlayer MoS2. We also studied the optical properties of MoS2 based singlelayer, twisted bilayer devices. The main observations ... 
Probing Magnetic And Structural Properties Of Metallic Nanowires Using Resistivity Noise
(20130719)The main focus of this thesis work has been the study of domain wall (DW) dynamics in disordered cylindrical nanomagnets. The study attempts to accurately quantify the stochasticity associated with driven (temperature/magnetic ... 
Probing phase transition and anisotropy in magnetic insulator based heterostructures employing magnon spin currents
Thermoelectric phenomena like the Seebeck and Peltier effects are known for more than two centuries with a wide range of applications. In 2008 Uchida et al. first demonstrated the phenomena called Spin Seebeck Effect (SSE) ... 
Probing the inflationary universe and reheating with primordial black holes and induced gravitational wave background
The direct observational test for the earliest phase of our universe comes from cosmic microwave background (CMB) radiation, which can only probe up to the recombination era. The only definitive event during the prerecombination ... 
Probing the Nature of Dark Matter in the Universe
The dark matter is the most dominating matter candidate and a key driving force for the structure formation in the universe. Despite decadelong searches, the precise nature and particle properties of dark matter are ... 
Prolate Shaped Dark Matter Halo And The Galactic Warp
(20160426)The physical explanation for the existence of the galactic warp is one of the major research areas in Astronomy. People have proposed various theories but nobody has yet given a convincing explanation. Most of the spiral ... 
Proton kinetic energy anomaly, Kauzmann temperature for nanoconfined water and design of nanoscale membrane for water desalination.
Structure, dynamics and thermodynamics of water molecules con fined inside the nanopores of various geometries are of fundamental interest owing to their potential applications in various nanofluidic devices, such as ... 
Pulsed Laser Ablated Dilute Magnetic Semiconductors and Metalic Spin Valves
(20180402)Spintronics (spin based electronics) is a relatively new topic of research which is important both from the fundamental and technological point of view. In conventional electronics charge of the electron is manipulated and ... 
Quantized heat flow probing thermal equilibration and edge structures of quantum Hall phases in graphene
In condensed matter physics, usually, phases are described using Landau’s approach, which characterizes the phases in terms of underlying symmetries that are spontaneously broken. Over the past few decades, a different ... 
Quantum Algorithms Using Nuclear Magnetic Resonance Quantum Information Processor
(20090512)The present work, brieﬂy described below, consists of implementation of several quantum algorithms in an NMR Quantum Information Processor. Game theory gives us mathematical tools to analyze situations of conﬂict between ... 
Quantum capacitance and noise measurements in van der Waals heterostructures
The discovery of graphene has revolutionized the field of condensed matter physics and opened new prospects for a wide range of other twodimensional materials. Further with the advancement of fabrication techniques, one ... 
Quantum Information Processing By NMR : Quantum State Discrimination, Hadamard Spectroscopy, Liouville Space Search, Use Of Geometric Phase For Gates And Algorithms
(20110222)The progess in NMRQIP can be outlined in to four parts.1) Implementation of theoretical protocols on small number of qubits. 2) Demonstration of QIP on various NMR systems. 3) Designing and implementing the algorithms for ... 
Quantum Information Processing By NMR : Relaxation Of Pseudo Pure States, Geometric Phases And Algorithms
(20090413)This thesis focuses on two aspects of Quantum Information Processing (QIP) and contains experimental implementation by Nuclear Magnetic Resonance (NMR) spectroscopy. The two aspects are: (i) development of novel methodologies ... 
Quantum oscillation in band insulators and properties of nonequilibrium steady states in disordered insulators
Starting with the experiment on Kondo insulator SmB6 , which shows 1/Bperiodic oscillations despite the absence of gapless electronic excitations in bulk, the candidate insulators showing quantum oscillation (QO) are on ... 
Quantum Simulations by NMR : Applications to Small Spin Chains and Ising Spin Systems
(20171122)Quantum simulations, where controllable quantum systems are used to simulate other quantum systems, originally proposed by Richard Feynman, are one of the most remarkable applications of quantum information science. Compared ... 
Quantum transport in Graphene Moire Superlattice and pn junction
The discovery of graphene has revolutionized the field of mesoscopic condensed matter physics. It has started a new field of vander Waals heterostructure in which different twodimensional materials including graphene can ...