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Dr. Ranjit Kumar

Completed Ph.D. (2014)

Email:

Research interests:

Study of Physical and Chemical Mechanism Responsible for Colossal Dielectric Phenomenon in Calcium Copper Titanate (CCTO)

Supervisor: Prof. M. Zulfequar

Co-Supervisor: Dr. T.D. Senguttuvan

Publications:


  1. Structural and impedance spectroscopic studies of spark plasma sintered CaCu3Ti4O12 dielectric ceramics: an evidence of internal resistive barrier effect
    Ranjit Kumar, M. Zulfequar, T. D. Senguttuvan
    Journal of Materials Science Materials in Electronics, (2016)
  2. Dielectric properties of microwave flash combustion derived and spark plasma sintered CaCu3Ti4O12 ceramic: role of reduction in grain boundary activation energy
    Ranjit Kumar, M. Zulfequar, T. D. Senguttuvan
    Journal of Materials Science Materials in Electronics 26(9), (2015)
  3. Growth of Nanocrystalline CaCu 3 Ti 4 O 12 Ceramic by the Microwave Flash Combustion Method: Structural and Impedance Spectroscopic Studies
    Ranjit Kumar, M. Zulfequar, Lalit Sharma, V. N. Singh, T. D. Senguttuvan
    Crystal Growth & Design 15(3):150206133850007, (2015)
  4. Molecular Kinetic Based Dielectric Polarization in Sol-Gel Derived Nanocrystalline CaCu3Ti4O12
    Ranjit Kumar, M. Zulfequar, T.D. Senguttuvan
    Advanced Materials Research 699:387-391, (2013)
  5. Microwave sintering of dielectric CaCu3Ti4O12: An interfacial conductance and dipole relaxation effect
    Ranjit Kumar, M. Zulfequar, V. N. Singh, J. S. Tawale, T. D. Senguttuvan
    Journal of Alloys and Compounds 541:428-432, (2012)
  6. A Low-Cost Chemical Route for High Dielectric Constant Plate-Shaped Nanocrystalline CaCu3Ti4O12
    Ranjit Kumar, M. Zulfequar, V. N. Singh, Sukhvir Singh, T. D. Senguttuvan
    Advanced Science Letters 16(5):79-83, (2012)
  7. Impedance Spectroscopic Studies of Sol–Gel Derived Nanocrystalline CaCu3Ti4O12
    Ranjit Kumar, M. Zulfequar, Harjeet Kaur, V. N. Singh, T. D. Senguttuvan
    Advanced Science, Engineering and Medicine, 3(3), 197-201 (2011)