29 citations · 110 across the 5 of their papers we have counts for
5 papers
Higher Energy Composite Fermion Levels in the Fractional Quantum Hall Effect
Trevor D. Rhone, Dwipesh Majumder, Brian S. Dennis +9
Even though composite fermions in the fractional quantum Hall liquid are well established, it is not yet known up to what energies they remain intact. We probe the high-energy spec…
Spin-texture and magneto-roton excitations at nu=1/3
Javier G. Groshaus, Irene Dujovne, Yann Gallais +7
Neutral spin texture ST excitations at nu=1/3 are directly observed for the first time by resonant inelastic light scattering. They are determined to involve two simultaneous spin-…
The Fermi edge singularity of spin polarized electrons
P. Plochocka-Polack, J. G. Groshaus, M. Rappaport +4
We study the absorption spectrum of a two-dimensional electron gas (2DEG) in a magnetic field. We find that that at low temperatures, when the 2DEG is spin polarized, the absorptio…
Absorption in the fractional quantum Hall regime: trion dichroism and spin polarization
J. G. Groshaus, P. Plochocka-Polack, M. Rappaport +7
We present measurements of optical interband absorption in the fractional quantum Hall regime in a GaAs quantum well in the range 0 < nu < 1. We investigate the mechanism of single…
The absorption spectrum around nu=1: evidence for a small size Skyrmion
J. G. Groshaus, V. Umansky, H. Shtrikman +2
We measure the absorption spectrum of a two-dimensional electron system (2DES) in a GaAs quantum well in the presence of a perpendicular magnetic field. We focus on the absorption…