My recent work seems to be mostly around exploring
elementary phenomena, often through analogies, using
solid state systems. Some of the themes have been:
Observable effects of zero-point motion of atoms
[electric field of zero-point phonons, bandgap
renormalization due to zero-pt motion of atoms]
Hydrogen atom (astro-)physics with excitons
[Pressure (Kothari) and thermal (Saha) ionization,
effect of perturbing electric and magnetic
fields..]
The experimental techniques we use include low
temperature transport (resistance,
magnetoresistance, Hall, resistance noise), thermal
analysis (latent heat), and optical spectroscopy
(photoluminescence, magneto-photoluminescence,
absorption, time-resolved excitation-correlation
PL..). We also have a homemade
pulsed magnet [35 tesla!] to assist in
spectroscopy and transport studies. My colleague
Bipul Pal and I share the spectroscopy
laboratory and have been closely cooperating
on many problems.
Criticalslowing
down at the abrupt Mott transition: When
the first-order phase
transition becomes zeroth-order and lookslikesecond-order, Satyaki Kundu, Tapas Bar,
Rajesh Kumble Nayak, Bhavtosh Bansal, 2020,
Physical Review Letters, 124, 095703 [abstract]
[pdf]
Kinetic spinodal instabilities in the Mott
transition in V2O3: Evidence
from hysteresis scaling and dissipative phase
ordering, Tapas Bar, Sujeet Kumar Choudhary,
Md. Arsalan Ashraf, K. S. Sujith, Sanjay Puri,
Satyabrata Raj, Bhavtosh Bansal, 2018, Physical
Review Letters121, 045701 [abstract]
[pdf]
Measurements of the electric field of
zero-point optical phonons in GaAs quantum wells
support the Urbach rule for zero-temperature
lifetime broadening, Rupak Bhattacharya,
Richarj Mondal, Pradip Khatua, A. Rudra, E. Kapon,
S. Malzer, G. Doehler, Bipul Pal, Bhavtosh Bansal,
2015, Physical Review Letters 114, 047402. [abstract]
[pdf]
[supplementary]
Single-slit electron diffraction with
Aharonov-Bohm phase: Feynman's thought experiment
with quantum point contacts, Pradip Khatua,
Bhavtosh Bansal, Dan Shahar, 2014, Physical Review
Letters 112, 010403
[pdf]
[supplementary]
[journal]
[synopsis]
[story
in a German physics portal]
Self-Assembly in semiconductor epitaxy: From
growth mechanisms to device applications,
Arnab Bhattacharya and Bhavtosh Bansal, Chapter 26 Handbook
of Crystal Growth Vol. 3, 2nd Edition,
Elsevier 2015, 1057–1099 Ed T. Kuech [abstract]
[pdf]
[Review]
Those who can, do. Those who can't, teach.
-George Bernard Shaw
Bhavtosh
Bansal
Associate
Professor,
Department of
Physical Sciences,
Indian
Institute of Science Education and Research Kolkata,
Nadia 741246,
West Bengal, INDIA.
Email:
bhavtosh iiserkol ac in
Note:
If you are interested in a PhD position and have a govt.
fellowship, you are
welcome to write to me. Currently there are no
openings.for project students.