Division of Physical and Mathematical Sciences: Recent submissions
Now showing items 201-220 of 946
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Analytical Mellin-Barnes techniques with applications to two-loop SU(3) chiral perturbation theory and QED at higher loops
The present era is one of precision in particle physics. To account for the lacunae in the otherwise successful Standard Model, observables are calculated to high precision in various theoretical models, which are then ... -
Electronic transport in low dimensional LaAlO3/SrTiO3 heterointerface
The large variety of phenomena exhibited by the interface between two band-insulators LaAlO3 and SrTiO3 has attracted intense research activity in recent years.The interplay of different symmetries, viz. point group ... -
Influence of local structure and network connectivity on the electrical switching of some Te-based chalcogenide glasses
Chalcogenide glass (ChG) materials have gained wide attention because of their applications in phase change non-volatile memories (PC-RAM), optical rewritable disks (CD-RW and DVD-RW), infrared detection and thermal imaging. ... -
Studying bubbles in liquid He4 containing single and many electrons
Helium is an inert element with fully occupied orbitals and is a super fluid at low temperatures. An electron close to the surface of liquid Helium faces a long range attraction due to the finite polarizability of the ... -
Engineering topological surface states through structural control, electrostatic gating and superconducting proximity effects
Three dimensional topological insulators are materials characterized by a gapped insulating bulk and gapless metallic states on the sample surface. This unique be- havior arises out of the non-trivial topology of the ... -
Textured Gate Thin Film Transistors and Circuits
Reliable, high performance integrated circuits based on thin film transistors (TFTs) on flexible substrates have a lot of advantages, especially in applications like flexible displays, spherical image sensors, wearable ... -
Development of Graphene Based Sensors for Human Physiological Monitoring and Vacuum Measurement
Nanomaterials have emerged as a remarkable class of materials in recent years owing to their excellent electrical, chemical, and physical properties. The first two-dimensional (2D) material to be discovered, graphene, has ... -
Hyperspectral and Spectropolarimetric Instrumentation for the Solar Atmosphere
The Sun is the closest star whose surface can be resolved to great a detail. Understanding the working of Sun helps in understanding a large fraction of stellar system as it falls under the spectral class G2V which is ... -
Carbon nanomaterials for energy and environmental applications
Environmental pollution and energy storage are two important issues in the modern day society. In this regard, Carbon nanomaterials have attained immense importance, due to their high surface area and electrical conductivity ... -
Studies in Strongly Correlated Systems: From Ultracold Superfluids to Strange Metals
Almost all the technology that we use today depends on our ability to control and exploit the properties of many electron phases. These phases are primarily made up of non-interacting fermions embodied in a metal or a ... -
Efficient Quantum Algorithms for Linear Algebra Problems
Many simulation problems can be expressed as time evolution under specific interactions, from some simple initial state to a final state whose properties are to be investigated. In this context, the Hamiltonian evolution ... -
Living on the Edge A Study of Boundary Modes In Two-dimensional Topological Systems
In the last few decades an enormous amount of research has been carried out on some novel phases of matter called topological phases which are beyond the paradigm of Landau’s theory of symmetry breaking. One of the ... -
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 ... -
Surface Adsorption of Dendrimers: Structure, Interactions at Graphene/Water Interface and Applications in Supercapacitors
The study of structure and dynamics of geometrically con ned polymers has been an interesting topic of research. In this thesis we speci cally studied the adsorption behavior of a hyper-branched polymer called poly(amidoamine) ... -
Implications in substrate recognition, catalysis and drug-design Structural basis for neutralization of ribosome-inactivating proteins by their monoclonal antibodies
Cryptic elements of proteins are not visible in unbound structures but become apparent in ligand/substrate-bound structures. These binary states of cryptic elements in protein structures can impact important aspects of ... -
Structural and functional studies on DNA synthesis and repair proteins
The work reported in this thesis includes structural and functional studies on thymidylate kinase and RecFOR pathway proteins from Thermus thermophilus HB8. In the first part, a study was performed on the thymidylate ... -
Interplay between the Mechanics of Flexible Substrates and Performance of Thin Film Transistors: Role of Buckled Geometry
Buckled Thin Film Transistor (TFT) resulting from the stress induced instability of thin films realized on a exible substrate can behave di erently than that of a planar device. The aim of this thesis is twofold: To ... -
Raman Study of gated devices in two-dimensional materials and pressure effects
This thesis presents Raman study of 2D materials of contemporary interests: 2H-MoTe_2, type-II Weyl semimetal (T_d-MoTe_2), structurally anisotropic semiconductors (1T'-ReX_2 (X=S, Se)) and Mott insulator (FePS_3) under ... -
Conductance Fluctuations in High-mobility Graphene Field Effect Transistors
In the past decade, a major fraction of the research carried out in condensed matter physics has been dedicated to address the unique physical properties of single layer graphene (SLG). Different properties of Dirac ... -
Charge Transport in Molecular Systems
Understanding charge transport in molecular systems is of fundamental interest in rapidly growing field of molecular electronics as well as to understand biological signal transfer processes which are accompanied by the ...