A5061739293- Advanced Condensed Matter Physics
- Catalytic Processes in Materials Science
- Nanocluster Synthesis and Applications
- Nuclear materials and radiation effects
- Physics of Superconductivity and Magnetism
- Surface and Thin Film Phenomena
- Advanced Thermodynamics and Statistical Mechanics
- stochastic dynamics and bifurcation
- Advanced Memory and Neural Computing
- Organic Electronics and Photovoltaics
- thermodynamics and calorimetric analyses
- Advanced Nanomaterials in Catalysis
- Theoretical and Computational Physics
- Surface Chemistry and Catalysis
- Electronic and Structural Properties of Oxides
- Electrocatalysts for Energy Conversion
Saha Institute of Nuclear Physics
2024-2025
Homi Bhabha National Institute
2024-2025
Kinetics of order-disorder transitions including melting in low-dimensional systems is theoretically predicted to be heterogeneous that start by nucleation defect sites at lower than homogeneous bulk-melting temperature requiring substantially energy barrier. We probed kinetics such transition thin multilayered films using x-ray scattering and situ atomic force microscopy (AFM) studies. X-ray results show linear increase with time in-plane separation ordered domains while AFM measurements a...
The complex interaction between the intrinsic and extrinsic state variables of strongly correlated insulator thin films is drawing interest as it shows memristive behavior that may be applicable to neuromorphic computing. Cerium oxide an interesting material its band structure modified due formation oxygen vacancy defects. polaron results from reduction Ce4+ Ce3+ through vacancies crucial for electron transport in cerium influenced by temperature. In this work, we examined relationship...
The correlation of thin films structure and orientation small organic molecules with the physical properties like charge carrier transport is not only important for basic understanding but also crucial various application as functional devices. Small semiconductor assemble in different configuration resulting exhibiting a wide variety optoelectronic properties. Here, we have investigated three metal phthalocyanines (MPcs) having ion Cu, Co, Ni using combination x-ray scattering techniques...
The outstanding catalytic property of cerium oxide (CeO2) strongly depends on the polaron formation due to oxygen vacancy (V̈O) defect and Ce4+ Ce3+ transformation. Temperature plays an important role in case generation CeO2 highly influences its electrical transport properties. Therefore, a much needed attention is required for detailed understanding effect temperature migration get idea about improvement redox ceria. In this work, we have probed polarons thin-film deposited silicon (Si)...
The layered honeycomb lattice iridate Cu$_2$IrO$_3$ is the closest realization of Kitaev quantum spin liquid, primarily due to enhanced interlayer separation and nearly ideal lattice. We report pressure-induced structural evolution by powder x-ray diffraction (PXRD) up $\sim$17 GPa Raman scattering measurements $\sim$25 GPa. A phase transition (monoclinic $C2/c \: \rightarrow$ triclinic $P\bar{1}$) observed with a broad mixed pressure range ($\sim$4 15 GPa). consists heavily distorted Ir-Ir...