Department of Condensed Matter Physics and Materials Science

Office: C 234 Lab: CG 29 and D 427

Tata Institute of Fundamental Research, Homi Bhabha Rd.,

Mumbai India 400005

Phone: +91-22-2278-2829 Fax: +91-22-2280-4610 (ATTN: Mandar Deshmukh)

 

 

About:

I have been a faculty member at TIFR since January 2006 in the Department of Condensed Matter Physics and Materials Science. Before coming to TIFR I was a postdoctoral researcher in group of Hongkun Park at Harvard. My graduate research was in the group of Dan Ralph at Cornell. I received my undergraduate degree (B.Tech.) in Engineering Physics from IIT Bombay .

The focus of our research is to look at nanoscale phenomenon in nanowires and graphene. At present we are pursuing research in four main areas

• Quantum Hall effect in graphene with the focus on the non-equilibrium regime and electromechanics using graphene
• Electrical and spin transport in InAs Nanowires
• Electromechanics in nanowires
• Probe phase transition in nanostructures using electromechanical devices

We collaborate extensively with Arnab Bhattacharya's group at TIFR.

As a postdoctoral researcher I worked on projects using the break junction technique to fabricate single molecule transistors and mesoscopic superconducting devices fabricated to study vortex physics. In another project we tried to fabricate devices for molecular electronics with the source and drain electrodes fabricated from different metals.

My graduate work focused on exploring nanoscale magnetism using metallic quantum dots. Using the spin-split levels of a normal quantum dot we probed spin-dependent tunneling from a ferromagnetic electrode into the quantum dot. One of the projects I worked on tried to answer the question -- how does the magnetic anisotropy of a small magnetic grain change as one changes the itinerant electron number by one? Our measurements suggest that changing the electron number modifies the magnetic anisotropy of the system subtly.