Prof. A K Raychaudhuri has joined the Kolkata Centre of UGC-DAE CSR, in December 2024 as a Senior INSA scientist.

The research interests of Prof. Raychaudhuri span a panorama of topics in the domains of condensed matter physics and materials science. The long list includes physics of glassy states, metal-insulator transition in oxides, physics of High Tc superconductors and colossal magnetoresistance. He has been on the frontline of materials synthesis, fabrication of nano devices and physical measurements done down to low temperatures in high magnetic fields using a variety of techniques involving electrical, magnetic and optical measurements as well as scanning probe techniques and electron microscopy.
One of his major pursuits has been in the field of nanoscience and technology that include nano- fabrications using nanolithography techniques such as use of electron-beam and ion-beam lithography for fabrication of single nanowires based devices. Another area of his expertise has been the physics associated with the metal insulator transition in ultra-thin epitaxial films of correlated oxides made using Laser Epitaxy. The study involves extensive use of Scanning Tunnelling Microscopy (under Ultra High Vacuum), 1/f noise and resistance fluctuations, impedance spectroscopy and low temperature and high magnetic field transport measurements. He has been a mentor to numerous researchers and continues to advance the materials science programmes at the Kolkata Centre and other collaborating institutions.

Positions held

• Director and Distinguished Professor of S.N.Bose National Centre for Basic Sciences
• Director, National Physical Laboratory
• SERB Distinguished Fellow, Central Glass and Ceramic Research Institute, Kolkata .
• Professor of Physics, Indian Institute of Science, Bangalore.