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    Browsing Physics (PHY) by Advisor "Sood, Ajay K"

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      • Crystalline And Glassy States In Hard Sphere Colloids : Density Functional And Simulational Studies 

        Chaudhuri, Pinaki (2011-11-22)
      • Driven Granular and Soft-matter : Fluctuation Relations, Flocking and Oscillatory Sedimentation 

        Nitin Kumar, * (2018-06-11)
        Active matter refers to systems driven out of thermal equilibrium by the uptake and dissipation of energy directly at the level of the individual constituents, which then undergo systematic movement in a direction decided ...
      • Dynamics of Glass-Forming Liquids and Shear-Induced Grain Growth in Dense Colloidal Suspensions 

        Shashank, Gokhale Shreyas (2018-06-19)
        The work presented in this doctoral thesis employs colloidal suspensions to explore key open problems in condensed matter physics. Colloidal suspensions, along with gels, polymers, emulsions and liquid crystals belong to ...
      • Flow Induced Instabilities, Shear-Thickening And Fluctuation Relations In Sheared Soft Matter 

        Majumdar, Sayantan (2016-09-09)
        In day to day life we encounter many different materials which are intermediate between crystalline solids and simple liquids that include paints , glues , suspensions, polymers, surfactants, food and cosmetic products and ...
      • Fluid Flow And Electrochemical Bias Induced Effects In Carbon Nanotubes And Raman Studies On Iron Perovskites 

        Ghosh, Shankar (2011-09-30)
        This thesis is divided into two parts; the first part presents results on the effect of the flow of fluids and electrochemical bias on single walled carbon nanotubes (SWNT). Issues pertaining to the entry of water into the ...
      • Graphene And Carbon Nanotubes : Field Induced Doping, Interaction With Nucleobases, Confined Water And Sensors 

        Das, Anindya (2010-12-08)
        This thesis presents experimental and related theoretical studies of single layer graphene, bilayer graphene and single walled carbon nanotubes. The thesis is divided into three parts; the first part describes the phonon ...
      • Iridates, Black Phosphorus, Weyl and Dirac Semimetals Under Extreme Conditions : Raman Study 

        Gupta, Satyendra Nath
        This thesis presents Raman studies of Sodium iridates (Na2IrO3 and Na4Ir3O8), VO2, black phosphorus, Weyl (TaAs, TaP, NbP and NbAs) and Dirac (Cd3As2) semimetals under ex-treme conditions like low temperature (upto 4K), ...
      • Light Scattering Investigations Near The Critical Point In Some Solvophobic Systems And The Design And Analysis Of A Microkelvin Thermostat For Critical Phenomena Studies 

        Unni, P K Madhavan (Indian Institute of Science, 2007-05-21)
        This thesis reports light-scattering experiments and visual investigations close to the critical point, in the solvophobic systems, 3-methylpyridine (3MP) + heavy water (D2O) + sodium bromide (NaBr) and methyl ethyl ketone ...
      • Linear and Nonlinear Ultrafast Time Resolved Spectroscopy of Topological Insulators, Weyl Semimetals and Semiconducting Nanowires 

        Mithun, K P
        Ultrafast time resolved spectroscopy has recently gained immense significance due to its potential capability to explore the dynamics of photoexcited carriers in condensed matter systems. The technique has proved to be a ...
      • Mesoscopic Heat engines beyond the Limits of Thermodynamics 

        Krishnamurthy, Sudeesh
        Despite the central role that Equilibrium thermodynamics has played in our understanding of many body systems, the underlying theoretical construct is strictly correct only in the ‘Thermodynamic Limit’. On the other hand, ...
      • Nanodevices of Graphene, Carbon Nanotubes and Flow Behaviour of Graphene Oxide Gel 

        Vasu, Kalangi Siddeswara (2018-05-09)
        In the last three decades carbon nanomaterials such as fullerenes, carbon nanotubes and graphene have attracted significant attention from the scientific community due to their unique electronic, optical, thermal, mechanical ...
      • Non-Equilibrium Phenomena in Sheared Soft Matter and Active Granular System 

        Bera, Pradip Kumar
        In this thesis, we have studied non-equilibrium phenomena in sheared soft matter systems and in granular active matter. The surfactant systems are driven out of thermal equilibrium by applying external forcing at the ...
      • Optical Tweezers To Probe And Manipulate Soft, Nano And Bio Systems 

        Khan, Manas (2013-01-31)
        Statistical physics in soft matter systems, physical properties of bio-inspired systems and the mechanical manipulations of nano-systems have been studied using optical tweezers to form the basis of this doctoral Thesis. ...
      • Phonon Anomalies And Phase Transitions In Pyrochlore Titanates, Boron Nitride Nanotubes And Multiferroic BiFeO3 : Temperature- And Pressure-Dependent Raman Studies 

        Saha, Surajit (2013-09-13)
        This thesis presents experimental and related theoretical studies of pyrochlore titanate oxides, boron nitride nanotubes, and multiferroic bismuth ferrite. We have investigated these systems at high pressures and at low ...
      • Phonon anomalies in pyrochlores and 2D materials under extreme conditions: Insights from Raman spectroscopic studies 

        Thomas, Anoop
        In solids, electrons do not behave as separate particles but instead interact intensely to form quasiparticles, which couple with other quasiparticles such as phonon, plasmon, and exciton to generate emergent quantum ...
      • Raman And X-Ray Photoemission Spectroscopic Studies Of Nanoparticles 

        Roy, Anushree (2012-06-06)
      • Raman Spectroscopy Of Graphene And Graphene Analogue MoS2 Transistors 

        Chakraborty, Biswanath (2016-06-18)
        The thesis presents experimental studies of device characteristics and vibrational properties of atomic layer thin graphene and molybdenum disulphide (MoS2). We carried out Raman spectroscopic studies on field effect ...
      • Raman Studies of Topological Crystalline Insulator, Natural Heterostructures, Excitonic Insulator and Layered Oxide Under Pressure 

        Pal, Sukanya
        The theme of this thesis is Raman spectroscopic study of a variety of exotic states of matter under extreme conditions, such as, hydrostatic pressure as high as 25 GPa and a wide temperature range from 77 K to 390 K. Raman ...
      • Raman Study of gated devices in two-dimensional materials and pressure effects 

        Das, Subhadip
        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 ...
      • Shear Induced Transitions In Mixed Surfactant Systems And Anisotropic Colloids 

        Vikram Rathee, * (2017-06-12)
        This thesis deals with the non-equilibrium phenomena under shear observed mainly in bilayer forming liquid crystalline phases of mixed surfactant systems, anisotropic colloidal dispersions as well as Langmuir monolayers ...

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