Dr.Vishwarupa Mohanty

Room No.

Phone no.-7978035552

Email-id-viswarupa.mohanty@gmail.com

Dr. Viswarupa Mohanty has completed her Ph.D. from the Department of Physics, School of Physical, Chemical and Applied Sciences, Pondicherry Central University, Puducherry and is currently serving as Guest Faculty in the Department of Physics, Ravenshaw University, Cuttack, Odisha. The title of her doctoral thesis is Synthesis of Lithium Based Inverse Spinel and Polyoxyanionic Systems: Structural Characterizations and Ac Electrical Relaxation Studies. She has also perused M.Phil. in Physics from Pondicherry University. She has been awarded with Prof. V. Devarajan Memorial Gold Medal for performing outstanding during her M.Phil. period in Pondicherry University.  Her research fascinations focus on structurally single phased nano-crystalline materials with enhanced conductivity at room temperature, with potential applications as electrodes and electrolytes in the area of solid state batteries, fuel cells and various energy storage devices. She also possesses a keen interest in recently advanced Na-ion Batteries and Advance area of Material Science. Dr. Viswarupa Mohanty has achieved a good experience in synthesizing different crystalline and nano-crystalline materials using various synthesis methods such as Solution combustion, Sol-gel, Hydrothermal and Solid state synthesis process. She has carried out various characterization techniques i.e. TG/DTA, XRD, Raman, FTIR, SEM, UV-Vis, PPMS, Broad Band Dielectric Spectroscopy and Impedance spectroscopy etc. during her research work and analyzed the structural and electrical properties of the synthesized materials in detail by utilizing different software skills such as Celref and Rietveld refinement for structural analysis, Origin, Z view and Mathematica for impedance analysis

Selected Publications

  • Viswarupa Mohanty, Rajesh Cheruku, Lakshmi Vijayan, G. Govindaraj, “Synthesis, structure and electrical conductivity studies of inverse spinel Li5Fe2.5O4”, Indian Journal of Pure and Applied Physics 51(5) (2013) 381-384.
  • Viswarupa Mohanty, Rajesh Cheruku, Lakshmi Vijayan, G. Govindaraj, “Ce-substituted lithium ferrite: Preparation and electrical relaxation studies”, Journal of Material Science and Technology 30(4) (2014) 335-341.
  • Viswarupa Mohanty, Govindaraj, “Hydrothermal Synthesis, Structural, Electrical and Magnetic Studies of Cathode Material Li2FeZrO4 for Lithium Ion Batteries”, Journal of Material Science: Material in electronics 29(5) (2018) 4217-4225.
  • Viswarupa Mohanty, G. Govindaraj, “Li5CexFe2.5-xO4 (x=0, 0.05): Hydrothermal Synthesis, Electrical and Magnetic Properties”, Materials research express 5 (2018) 055014.
  • Viswarupa Mohanty, G. Govindaraj, “Electrical relaxation studies of lithium based Li5Cex/2Alx/2Fe2.5-xO4 (x=0, 0.05, 0.1) synthesized by hydrothermal process” (submitted).
  • Viswarupa Mohanty, Govindaraj, “Investigation on electrical relaxation properties considering pinned dipole and free dipole relaxation in various hydrothermally synthesized ferrites and zirconates and its usage”, (submitted).
  • Group
  • Research
  • Publications
  • Teachings

NA

A lithiated Zirconium oxide of the formula Li2FeZrO4 was successfully prepared by well-known hydrothermal synthesis method. XRD results revealed about the crystalline nature of the materials having tetragonal structure. The analysis of electrical parameters obtained from the ac impedance measurements of the materials gives rise to dc resistance of grain and grain boundary, hopping frequency, activation energy for hopping frequency and conductivity etc. An alternate approach, to understand the phenomenon concerned with dispersion in ac conductivity is Anomalous relaxation process using pinned dipole and free dipole (PD and FD) relaxation. This alternate function clearly fits the data and could differentiate the fast process from slow relaxation occurring within the material. The electrical parameters obtained for Zʺ(w) of the PD and FD formalism show good agreement with all other representations i.e. M″(ω), σ′(ω), and ε″(ω)…..

 

More about this research on: Viswarupa Mohanty, G. Govindaraj, Journal of Material Science: Material in electronics 29(5) (2018) 4217-4225. 

  • Viswarupa Mohanty, Rajesh Cheruku, Lakshmi Vijayan, G. Govindaraj, “Synthesis, structure and electrical conductivity studies of inverse spinel Li5Fe2.5O4”, Indian Journal of Pure and Applied Physics 51(5) (2013) 381-384.
  • Viswarupa Mohanty, Rajesh Cheruku, Lakshmi Vijayan, G. Govindaraj, “Ce-substituted lithium ferrite: Preparation and electrical relaxation studies”, Journal of Material Science and Technology 30(4) (2014) 335-341.
  • Viswarupa Mohanty, Govindaraj, “Hydrothermal Synthesis, Structural, Electrical and Magnetic Studies of Cathode Material Li2FeZrO4 for Lithium Ion Batteries”, Journal of Material Science: Material in electronics 29(5) (2018) 4217-4225.
  • Viswarupa Mohanty, G. Govindaraj, “Li5CexFe2.5-xO4 (x=0, 0.05): Hydrothermal Synthesis, Electrical and Magnetic Properties”, Materials research express 5 (2018) 055014.
  • Viswarupa Mohanty, G. Govindaraj, “Electrical relaxation studies of lithium based Li5Cex/2Alx/2Fe2.5-xO4 (x=0, 0.05, 0.1) synthesized by hydrothermal process” (submitted).
  • Viswarupa Mohanty, Govindaraj, “Investigation on electrical relaxation properties considering pinned dipole and free dipole relaxation in various hydrothermally synthesized ferrites and zirconates and its usage”, (submitted).
  • Solid state Physics
  • Nuclear and Particle Physics
  • Modern Physics
  • Quantum Physics