217 citations · 532 across the 9 of their papers we have counts for
9 papers
Raman scattering study of InAs nanowire under high pressure
Dipanwita Majumdar, Abhisek Basu, Goutam Dev Mukherjee +3
The pressure dependent phonon modes of predominant wurtzite InAs nanowires has been investigated in a diamond anvil cell under hydrostatic pressure up to 58 GPa. The TO and LO at G…
Internal field induced enhancement and effect of resonance in Raman scattering of InAs nanowires
Jaya Kumar Panda, Anushree Roy, Achintya Singha +4
An internal field induced resonant intensity enhancement of Raman scattering of phonon excitations in InAs nanowires is reported. The experimental observation is in good agreement…
Raman sensitivity to crystal structure in InAs nanowires
Jaya Kumar Panda, Anushree Roy, Achintya Singha +4
We report a combined electron transmission and Raman spectroscopy study of InAs nanowires. We demonstrate that the temperature dependent behavior of optical phonon energies can be…
Probing the spin states of three interacting electrons in quantum dots
Andrea Gamucci, Vittorio Pellegrini, Achintya Singha +4
We observe a low-lying sharp spin mode of three interacting electrons in an array of nanofabricated AlGaAs/GaAs quantum dots by means of resonant inelastic light scattering. The fi…
Two-dimensional Mott-Hubbard electrons in an artificial honeycomb lattice
A. Singha, M. Gibertini, B. Karmakar +8
Electrons in artificial lattices enable explorations of the impact of repulsive Coulomb interactions in a tunable system. We have trapped two-dimensional electrons belonging to a g…
Delocalized-localized transition in a semiconductor two-dimensional honeycomb lattice
G. De Simoni, A. Singha, M. Gibertini +7
We report the magneto-transport properties of a two-dimensional electron gas in a modulation-doped AlGaAs/GaAs heterostructure subjected to a lateral potential with honeycomb geome…