TY - JOUR
T1 - Multiple interacting bilayer electron system
T2 - Magnetotransport and heat capacity measurements
AU - Grivei, E.
AU - Melinte, S.
AU - Bayot, V.
AU - Manoharan, C.
AU - Shayegan, M.
PY - 2003/11/12
Y1 - 2003/11/12
N2 - We report the fabrication, magnetotransport, and heat capacity measurements on a GaAs/AlGaAs multiple double-quantum-well heterostructure in the quantum Hall (QH) regime. Magnetotransport data reveal the existence of a correlated QH state at total Landau level filling factor νt = 1. Near νt = 2, we observe the nuclear contribution to the measured heat capacity of the Ga and As atoms in GaAs quantum wells. The heat capacity data indicate that Skyrmions are the lowest-energy excitations of the νt = 2 ferromagnetic QH ground state.
AB - We report the fabrication, magnetotransport, and heat capacity measurements on a GaAs/AlGaAs multiple double-quantum-well heterostructure in the quantum Hall (QH) regime. Magnetotransport data reveal the existence of a correlated QH state at total Landau level filling factor νt = 1. Near νt = 2, we observe the nuclear contribution to the measured heat capacity of the Ga and As atoms in GaAs quantum wells. The heat capacity data indicate that Skyrmions are the lowest-energy excitations of the νt = 2 ferromagnetic QH ground state.
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U2 - 10.1103/PhysRevB.68.193404
DO - 10.1103/PhysRevB.68.193404
M3 - Article
AN - SCOPUS:0346333080
SN - 1098-0121
VL - 68
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 19
ER -