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Investigation of inter-layer charge transfer process in optically excited graphene and transition metal dichalcogenide-based heterostructures
Light-matter interaction of two-dimensional (2D) materials and their van der Waals hybrids have gained significant interest in the past few years as they offer an intriguing platform for studying fundamental physical ...
Statistics of Conductance Fluctuations in 2D systems
Study of 2D materials is interesting due to the various phase transitions observed
in these materials. I shall present the results obtained in the study of phase transi tions in three different 2D material systems – ...
Electrical transport study of Graphene/WSe2 Heterostructure
Spintronics has emerged as a novel platform to build information storage and logic devices in the last few decades. Graphene promises a long spin propagation length even at room temperature due to its low spin-orbit ...
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 ...
Ultrafast Photoexcited Carrier Dynamics in Low Dimensional Systems Probed by Time Resolved Terahertz Spectroscopy
The key aspect of this thesis is to understand the photoinduced carrier dynamics in low dimensional systems by employing time resolved optical pump-terahertz probe (OPTP) spectroscopy. Ultrafast pulsed laser (Ti: Sapphire ...
Structure, thermodynamics and dielectric properties of water under nanoscale confinement and search for reversible phase change of methanol in astrochemical conditions
This thesis majorly explores the intricate structural, dynamical, and dielectric
characteristics of monolayer water and other organic molecules under
strong confinement and astrochemical condition. Water molecules ...
Twist Angle Dependent Phononic and Photoluminescence Properties of Twisted Bilayer Heterostructures
This thesis presents research work on twisted bilayer graphene (t-BLG) and twisted tungsten diselenide (t-WSe2) using various measurement techniques. Since the isolation of graphene in 2004, two-dimensional (2D) materials ...
Transport and criticality in topological systems and spin models
This thesis presents work done on transport in topological insulators and graphene-based systems, and quantum criticality in one- and two-dimensional spin
models. In particular we study the following: transport on surfaces ...
Proximity and Strain Driven Quantum Transport in Graphene
Graphene, with its relativistic band structure and high mobility, provides a promising ground for exploring emergent electronic phenomena when interfaced with other two-dimensional materials. By introducing symmetry-breaking ...
Proximity engineering of correlated states in graphene heterostructures
Strong electronic correlations are central to many phenomena in condensed matter physics, including unconventional superconductivity, the fractional quantum Hall effect, nematicity, and non-Fermi liquid behavior. In ...