A
A. Banerjee
Researcher at University of Burdwan
Publications - 9
Citations - 176
A. Banerjee is an academic researcher from University of Burdwan. The author has contributed to research in topics: Band gap & Ferroelectricity. The author has an hindex of 4, co-authored 6 publications receiving 146 citations.
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Journal ArticleDOI
Annealing effect on nano-ZnO powder studied from positron lifetime and optical absorption spectroscopy
Sreetama Dutta,S. Chattopadhyay,Debnarayan Jana,A. Banerjee,S.K Manik,Swapan Kumar Pradhan,Manas Sutradhar,Anindya Sarkar +7 more
TL;DR: In this article, different thermal stages of generation and recovery of cationic as well as anionic defects in granular ZnO are discussed in the light of XRD, PAL, and optical absorption studies.
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Microstructural Changes and Effect of Variation of Lattice Strain on Positron Annihilation Lifetime Parameters of Zinc Ferrite Nanocomposites Prepared by High Enegy Ball-milling
TL;DR: In this paper, the phase transformation kinetics towards formation of ferrite phases and microstructure characterization of ball milled ZnFe powder under open air were investigated and the formation of normal and inverse spinel ferrite phase was noticed after 30 minutes and 2.5 hours ball milling respectively.
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Particle size dependence of optical and defect parameters in mechanically milled Fe2O3
TL;DR: In this paper, a red shift in the optical band gap due to the reduction of particle size has been observed, and the coincidence Doppler broadening of the electron positron annihilation γ-radiation spectroscopy has been employed to identify the nature of defects generated due to ball-milling process.
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Microstructure, Mössbauer, and Optical Characterizations of Nanocrystalline -FeO Synthesized by Chemical Route
TL;DR: Mossbauer spectrum of the unannealed (as-prepared) α-Fe2O3 sample shows the superparamagnetic behavior at room temperature whereas all annealed samples show complete ferromagnetic behavior.
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Microstructure and positron annihilation studies of mechanosynthesized CdFe2O4
TL;DR: In this paper, the structural and micro-structural evolution of CdFe2O4 caused by milling is investigated by X-ray powder diffraction, and the relative phase abundances, particle sizes, r.m.s. strains, lattice parameter changes of different phases have been estimated employing Rietveld powder structure refinement analysis of XRD data.