5 FOREWORD As a periodic review of its activities, the Department of Physics has been organizing In-house Symposium on annual basis during recent years. This one-day symposium usually consists of oral presentations by faculty members, post-docs and students, and poster presentations by all those who would like to present their recent results. This year we have a total of 20 talks and 60 posters. I hope this package would be a reasonable representation of the ongoing research activities in the department. This event is also particularly useful to freshers (including senior undergraduates) to familiarize themselves with the current research activity in our Department in various branches of Physics. I would like to thank Arindam Ghosh, Prabal Maiti and Prateek Sharma of our department who have shouldered the responsibility to organize this In-house Symposium. I urge all of you to actively participate in this important scientific activity. I hope you will all have an enjoyable and fruitful day. Prof. V. Venkataraman Chairman November 27, 2015 Department of Physics, IISc Bangalore Inhouse Symposium 2015 November 27, 2015 Auditorium, New Physical Sciences Building Programme Session I 9:00-10:30 Chair: Anindya Das T01 9:00-9:15 Arnab Rai Choudhuri Magnetic Cycles of Sun-like Stars and their Theoretical Modelling Naveen Yadav T02 9:15-9:30 Dynamics of supernova driven superbubbles T03 9:30-9:45 Sudeep Kumar Ghosh Squished Baryons in Synthetic Dimensions T04 9:45-10:00 Sudeesh K Active Micrometer Sized Heat Engine T05 10:00-10:15 S R K Chaitanya Indukuri Enhancement of fluorescence and anisotropic decay dynamics from CdSe quantum dots by hybrid photonic-plasmonic templates Prasad Vishnubhotla T06 10:15-10:30 Electron field emission from carbon nanostructures 10:30-11:00 Tea Break Session II 11:00-1:00 Chair: Vijay Shenoy T07 11:00-11:15 Subroto Mukerjee Many-body localization in the presence of a single particle mobility edge T08 11:15-11:30 Ravi Kiran Saripalli Optical and Dielectric studies on single crystals of organic Glucuronic acid γ-Lactone T09 11:30-11:45 Pramod Verma Phonon anharmonicity in pyrochlores T10 11:45-12:00 A. V. Pradeep Spin polarized low energy electron diffraction from Ir(100)-(5×1)-H, Ir(100)- (2×1+1×2)-O and Fe/Ir(100) surfaces. T11 12:00-12:15 Arvind Kumar DLTS analysis of amphoteric interface defects in high-k TiO2 MOS structures prepared by sol-gel spin-coating T12 12:15-12:30 Md. Ali Aamir Anomalous conductivity noise in gapped bilayer graphene heterostructure T13 12:30-12:45 Vineeth Mohanan P Current induced deterministic switching of magnetization in Pt/Co/Pt films T14 12:45-1:00 Ramesh Chandra Mallik Synthetic Teterahedrites for Thermoelectric Applications 1:00-2:00 Lunch Break Session 2:00-4:30 Poster Session III Session 4:30-5:30 Chair: Ambarish Ghosh IV T15 4:30-4:45 Tanmoy Das Assembling topological insulators with lasers Rakesh Manjappa T16 4:45-5:00 Ray tracing based refraction correction in Optical tomography of polymer gel dosimeters T17 5:00-5:15 M. Praveena Plasmon-mediated emergence of collective emission and enhanced quantum efficiency in quantum dot films T18 5:15-5:30 Kiran Lakhchaura Entropy profiles of Galaxy Clusters using MCMC T19 5:30-5:45 Kallol Roy Dual gated graphene-MoS2 field effect transistors (FET) with extremely high optical detectivity 5:45-6:15 High Tea Session V 6:15-7:45 Chair: V. Venkataraman Anil Kumar Memorial 6:15-7:15 B N Dev, IACS, Kolkata Lecture Atomic Scale and Nano scale Quantum Structures 7:15-7:45 Best Poster Award Viswamitra Memorial Prize Best write-up Award in PH300 (Seminar Course) Concluding Remarks 7:45-9:00 Dinner Sl. Poster Title Presenter's name no. no. 1 P01 Cold gas in cluster cores: Global stability analysis and non-linear Prakriti Pal Choudhury simulations of thermal instability in spherical and plane-parallel atmospheres 2 P02 Probing Photoexcited Carriers in a few layer MoS2 Laminate by Time- Srabani Kar Resolved Optical Pump-Terahertz Probe Spectroscopy 3 P03 Detection of Localized Surface Plasmons in Tellurium Nanowires Mithun K. P. using Time-Resolved Optical Pump-Terahertz Probe Spectroscopy 4 P04 Enhancing photoresponsivity using MoTe2-graphene vertical Manabendra Kuiri heterostructures 5 P05 Probing 2D black phosphorus by quantum capacitance measurements Manabendra Kuiri 6 P06 Noise measurement in Moire and Bilayer Graphene Chandan Kumar 7 P07 Conductance oscillation under high magnetic filed in Graphene Chandan Kumar 8 P08 Roughening transition in colloidal membranes Lachit Saikia 9 P09 A Three-Dimensional Babcock-Leighton Solar Dynamo Model with Non- Gopal Hazra Axisymmetric Subsurface Flow 10 P10 Squished Baryons in Synthetic Dimensions Umesh K. Yadav 11 P11 Pressure-dependent Semiconductor to Semimetal and Lifshitz transitions Achintya Bera in α-MoTe2 : Raman and Density functional studies 12 P12 Electrical characterization of MoS2-MoTe2 vertical heterojunction Arup Paul 13 P13 Quantum Impurities develop Fractional Local Moments in Spin-Orbit Adhip Agarwala Coupled Systems 14 P14 Quantum transport at graphene NbSe2 junction Manas Ranjan Sahu 15 P15 Fluctuation theory of Rashba Fermi gases: Gaussian and beyond Vijay B. Shenoy 16 P16 Study of thermoelectric properties of the pseudo-binary Cu2Te-Sb2Te3 Shriparna Mukherjee system 17 P17 Raman Signatures of Strong Kitaev Exchange Correlations in (Na1- Satyendra Nath Gupta xLix)2IrO3 : Experiments and Theory 18 P18 Magnetocaloric Effect in Double Perovskite Ho2NiMnO6 Tirthankar Chakraborty 19 P19 87Rb-133Cs molecule formation probability in an optical lattice using Manjari Gupta strong-coupling expansion 20 P20 Percolative switching in transition metal dichalcogenide field-effect Tathagata Paul transistors at room temperature 21 P21 Local and non-local transport in the Topological Kondo Insulator SmB6 Sangram Biswas 22 P22 Enhancement of spin accumulation near Verwey transition in Fe3O4 based Shwetha G. Bhat spin injection devices 23 P23 Design and construction of a continuous-wave Titanium-Sapphire Laser Debrup Bhattacharya 24 P24 In situ Raman spectroscopic measurement of top gated MoTe2 Field Effect Subhadip Das Transistor 25 P25 Low-frequency noise in edge-contacted graphene Paritosh Karnatak 26 P26 Pulsed laser deposition of topological insulator thin films Abhishek Banerjee 27 P27 Yielding of a Langmuir monolayer under periodic shear Pradip K. Bera 28 P28 Magnitude and origin of electrical noise at individual grain boundaries in Kimberly Hsieh graphene 29 P29 Crucial Role of Internal Collective Modes in Underdoped Cuprates Aabhaas V. Mallik 30 P30 Boosted one dimensional superconductors on a lattice Sayonee Ray 31 P31 Pressure Induced Metal to Metal transition in Eu2Ir2O7: Raman and X-ray Anoop Thomas Studies 32 P32 Phase Change Properties of Chalcogenide Glasses - Some Interesting K. Ramesh Observations 33 P33 Pressure dependence of glass transition in As-Te and Ge-Te glasses from K. Ramesh electrical resistivity measurements 34 P34 Observation of fractional conductance quantization in graphenic edge Amogh Kinikar states 35 P35 Photo-response in hBN encapsulated Graphene-TMDC heterostructures Avradip Pradhan 36 P36 Exploring Utilities of Reverse Cross-Polarization-Spectral Editing in P. Lokeswara Rao Proton NMR spectroscopy 37 P37 Spectral response of single layer Graphene/MoS2 photodetector Ranjit V. Kashid 38 P38 Tailoring Curie temperature and magnetic anisotropy in ultrathin Pt/Co/Pt Vineeth Mohanan P films 39 P39 Defect Assisted Carrier Relaxation in Graphene Nanoribbons Gyan Prakash 40 P40 Structural aspects and interaction profiles of PAMAM dendrimers on a Mounika Gosika graphene sheet 41 P41 Antiphase boundary induced Exchange bias in LuMn0.5Fe0.5O3 Tanushree Sarkar 42 P42 Structure driven multiferroic properties of LuFeO3 nanoparticles Pittala Suresh 43 P43 Deterministic switching of magnetization states in Cobalt nano rings Manohar Lal 44 P44 Substrate screening effects on quasiparticle excitations of pristine and Mit H Naik vacancy-defected MoS2 45 P45 Bulk-Induced 1/f Noise at the Surface-states of Three-Dimensional Semonti Bhattacharyya Topological Insulators 46 P46 High detectivity in Photosensitive Graphene-hBN-MoS2 multilayer Tanweer Ahmed heretostructures 47 P47 Molecular mechanism of water permeation in helium impermeable Sudip Chakraborty graphene and graphene oxide membrane 48 P48 Dendrimers as blocking reagent for the toxic protein pores Subbarao Kanchi 49 P49 Gate Controlled Seebeck effect in twisted bilayer graphene PBS Mahapatra 50 P50 The SPL7013 Dendrimer Destabilizes the HIV-1 gp120-CD4 Complex Anil Kumar Sahoo 51 P51 Differential functional role of the three subunits of gp41 trimer on HIV- Satyabrata Das entry: a study based on homology modelling and MD simulation 52 P52 The study of electroporation phenomenon using an optically transparent Amit Kumar Majhi polymer device and molecular dynamics simulations 53 P53 Multifractal universal conductance fluctuation in graphene Kazi Rafsanjani Amin 54 P54 Cooling a Band Insulator with a Metal: Fermionic Superfluid in a Arijit Haldar Dimerized Holographic Lattice 55 P55 Unconventional 1/f noise in Graphene on SrTiO3 substrate Anindita Sahoo 56 P56 Spatiotemporal heterogeneity of lipid interaction in solid supported lipid N. K. Sarangi bilayers induced by binding of pore forming proteins 57 P57 Molecular structure of the Discotic Liquid Crystalline Phase of Hexa-peri Saientan Bag Hexabenzocoronene / Oligothiophene Hybrid and their Charge Transport properties 58 P58 Micromagnetic Simulations: A method to model