Research in Advanced Materials

 Materials are fundamental to many technological applications such as LEDs, Photovoltaics, Spintronics, Sensors, etc. Progress in today’s world mainly depends on the development of new materials and engineering/tuning their properties for any desired application.

Advanced Materials group in the Department is focussed on the development of new advanced materials through innovative synthesis techniques and extensive studies/characterizations on structural, microstructural, optical, electrical and magnetic properties usingconventional techniques, such as XRD, SEM/TEM, optical, electrical and magnetic measurements. In addition, specialized techniques, such as Neutron Diffraction, Near-Edge X-ray Absorption Fine Structure (NEXAFS) and X-ray Magnetic Circular Dichroism (XMCD), etc. are being used through collaborations with national institutes and institutions abroad.

Ongoing research Activities:

  • Solid State Ionics and Radiation Damage studies
  • Physics of inorganic glass, glass-ceramics and nano-composites
  • Multiferroics and Metal Oxide – Carbon Nanomaterials
  • Nanoferrites

Nano-Ferrite Materials: Synthesis, Characterization and studies on Electrical and magnetic properties for Low and High FrequencyApplications

Nano ferrites belong to a special class of magnetic material consisting of metal oxide and ferric oxide as their main compositions. The novel magnetic, electric and dielectric properties possessed by them have made ferrites more attractive to the current field of science and technology

 What we are working on:

  • Synthesis of rare earth doped Mg-Zn , Ni-Zn, Mn-Zn nano ferrites by solution combustion method using sophisticated Muffle furnace and Electronic chemical balance and Magnetic stirrer available in our research laboratory.
  • Structural Characterisation of the nano sized samples before and after gamma irradiation, using various advanced instruments available in the sophisticated laboratories present within and outside Bangalore University.
  • Measurement of Dc conductivity before and after gamma irradiation, using resistivity measurement set up available in our research laboratory.
  • Measurement of Electrical and magnetic properties before and after gamma irradiation using Impedance analyser , Super conducting quantum interference device(SQUID) ,Vibrating Sample Magnetometer(VSM) available in various sophisticated laboratories present within and outside Bangalore University

Select Publications

  • Structural and magnetic studies of Mg(1-x)ZnxFe2O4 nanoparticles prepared by a solution combustion method , C. Choodamani , G.P. Nagabhushana , B.Rudraswamy, S. Ashoka , B. Daruka Prasad and G.T. Chandrappa, Journal of Alloys and Compounds 578 , 103–109 (2013)
  • Thermal effect on magnetic properties of Mg-Zn ferrite nanoparticles , C. Choodamani, G.P. Nagabhushana, B. Rudraswamy and G.T. Chandrappa, Materials Letters, 116, 227-230 ,(2013 )

RudraswamyJagadeesh Angadi and Rudraswamy in their laboratory

conductivity measurement set upView of Dc conductivity measurement set up