Department of Physics

Permanent URI for this communityhttps://ir.nbu.ac.in/handle/123456789/4173

Physics is one of those departments with which North Bengal University started its journey in the year 1962. At present there are nine faculty members and ten non-teaching employees in the department. The department has active research groups in the field of (a) Liquid Crystal, (b) Relativity, Cosmology, and Astrophysics, (c) High-energy Heavy-ion Interaction and Cosmic-ray Physics, and (d) Solid-state devices. Several research projects sponsored by the DST, DAE, UGC, and Tea Research Board are running in the department. In the year 2003 the department received a financial support under the FIST programme from the DST, Govt. of India. The department offers both M.Sc. and Ph.D. courses. A semester system is followed in the M.Sc. level, with three different areas of specialization namely, Condensed Matter Physics, Electronics and Nuclear and Particle Physics, out of which a student can choose one. The annual intake capacity in M.Sc. is 40 students. In the Ph.D. programme of the department right now 25 research students are enrolled under the supervision of different faculty members. Almost all faculty members are involved in intra and inter-university national and international collaborations of scientific research. The department houses one IUCAA Resource Centre, a Data Centre for Observational Astronomy, six teaching laboratories, several research laboratories and one departmental library. From time to time the department organizes Seminars, Symposia, Conferences, Schools, Refresher Courses, and Outreach Programs.

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Author: search.filters.author.Bhattacharya, SanjibHas files: Yes

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    Exploring AC Conductivity and Microstructure of Iron-Vanadium Doped Systems
    (University of North Bengal, 2025-03) Ghosh, Jiban; Bhattacharya, Sanjib
    The present work focuses on the impact of partial substitution of ZnO (former) by various other oxides in the microstructure and AC conductivity of newly developed amorphous semiconducting systems containing two transition metal ions such as vanadium and iron. The current materials may be significantly helpful in specialized applications like high-power lasers for their high refractive indices. An insightful study of the composition-dependent microstructure and electrical transport behavior with various former-modifier ratios is of great interest, not only from an application perspective but also for academic purposes.
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    ItemOpen Access
    Na2O Doped Solid State Battery Electrolytes: Preparation and Electrical Characterization
    (University of North Bengal, 2024-03) Ram, Rakesh; Bhattacharya, Sanjib
    Present work explores the development of Na2O doped electrolytes and their conduction behavior. Electrical transport behavior (mixed conduction) of as-developed electrolytes has been investigated with respect to frequency and temperature. A nature of flat conductivity in the lower frequency window may be caused due to diffusional motion of Na+. It is also noted that the conductivity shows dispersion near the high frequency regime. Electrical conductivity has also been analyzed with respect to temperature to explore their thermally activated nature. A little bit of difference in trajectories of current-voltage characteristics in both directions should make sense for their applications in the sectors of battery-electrolytes.