Department of Condensed Matter Physics & Materials Science,
Tata Institute of Fundamental Research,
Homi Bhabha Road, Mumbai 400 005
Pratap Raychaudhuri, TIFR, Mumbai, elected to Fellowship in 2016. Raychaudhuri’s research focuses on the study of unconventional and disordered superconductors using electrodynamic and tunneling measurements. His group places strong emphasis on in-house instrumentation and has developed a state-of-the-art high-field low temperature scanning tunneling microscope operating down to 350 mK up to a magnetic field of 90 kOe. His current research interest includes strongly disordered conventional superconductors, orderdisorder transitions of the vortex lattice in type II superconductors, and vortex state spectroscopy in unconventional superconductors. In addition to research, Pratap is also interested in science popularization and writes popular science articles in the leading Bengali daily Anandabazar. He has received several awards including the NASI-Scopus Young Scientist award in 2009 and the Shanti Swarup Bhatnagar Award in 2014.
Session 3B - Inaugural Lecture
Low temperature scanning tunneling spectroscopy View Presentation
Over the last two decades, low temperature scanning tunneling spectroscopy has emerged as one of the most powerful tools to study electronic properties of solids at low temperature, with unsurpassed spatial and energy resolution. In this talk, the basics of this technique and the low temperature scanning tunneling microscope developed in TIFR, operating down to 350 mK in a field up to 90 kOe, will be described. Using specific examples from the studies carried out in the speaker’s laboratory, the kind of problems that can be addressed using this technique will be highlighted. That it is much more economic and infinitely more productive to build your own scanning tunneling microscope than to buy commercial products commonly available in the market will be shown.