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Non-ergodicity in Interacting Quasiperiodic Systems and Disordered Fock Lattice Models
In this thesis, we study different aspects of many body localization in closed quantum systems. Many body localized systems are isolated interacting quantum systems that fail to thermalize on their own (non-ergodic) and ...
Multi-Dimensional Solid State NMR - Methods Development and Application to Materials
In recent years, the scope of application of solid-state NMR to different areas has been witnessing a significant increase. Primarily, this is due to the possibility of routine use of proton NMR spectroscopy at ultrafast ...
Synergetic effect of electrostatic gating and interfacial states in molecular switching operation in molybdenum disulfide based thin hetero-interfaces
Nowadays, two-dimensional (2D) materials have stimulated intensive research due to their intriguing physical properties and excellent electronic application. van der Waals (vdW) semiconductors are attractive for electrically ...
Thermalization and its Relation to Localization, Conservation Laws and Integrability in Quantum Systems
(2018-07-26)
In this thesis, we have explored the commonalities and connections between different classes of quantum systems that do not thermalize. Specifically, we have (1) shown that localized systems possess conservation laws like ...
Design and Development of Novel Fiber Bragg Grating based devices for various Biomedical applications
Sensors have always been an integral part of human life. Apart from the numerous inherent sensors which the human body possesses, there are various man-made sensors which has been studied and implemented widely to fulfill ...
First Principles Study of Oxides : Bulk, Interfaces and Defects
In the recent years, oxides have been the focus of numerous theoretical and experimental
studies. This is because of a wide variety of exotic physical phenomenon,
such as multiferroicity, charge ordering, metal-insulator ...
Fourier coeffcients of modular forms and mass of pullbacks of Saito–Kurokawa lifts
In the first part of the talk we would discuss a topic about the Fourier coefficients of
modular forms. Namely, we would focus on the question of distinguishing two modular forms
by certain ‘arithmetically interesting’ ...
Charge transport in functionalized carbon nanotube and composite with polyaniline at low temperature
Carbon nanotube (CNT) is a very well-known material with very high thermal conductivity, high Young modulus and high electrical conductivity. The sp2 bonded C=C π-electrons delocalize in the whole lattice give rise to high ...
Probing effect of disorder in the electrical and optical properties on van der Waals heterostructure
In this thesis, we studied the transport properties of single-layer graphene and single-layer to few-layer
MoS2. We also studied the optical properties of MoS2 based single-layer, twisted bilayer devices. The main
observations ...
Tuning Andreev reflection at Graphene - superconductor junction: from zero field to quantum Hall regime
Andreev reflection (AR) is the underlying phenomena that determines the quasiparticle dynamics at the junction of a superconductor with any non-superconducting material, which in turn determines the transport properties ...