TY - JOUR
T1 - Probing local electronic states in the quantum Hall regime with a side-coupled quantum dot
AU - Otsuka, Tomohiro
AU - Abe, Eisuke
AU - Iye, Yasuhiro
AU - Katsumoto, Shingo
PY - 2010/6/2
Y1 - 2010/6/2
N2 - We demonstrate a method for locally probing the electronic states in the quantum Hall regime utilizing a side-coupled quantum dot positioned at an edge of a Hall bar. By measuring the tunneling of electrons from the Hall bar into the dot, we acquire information on the local electrochemical potential and electron temperature. Furthermore, this method allows us to observe the spatial modulation of the electrostatic potential at the edge state due to many-body screening effect.
AB - We demonstrate a method for locally probing the electronic states in the quantum Hall regime utilizing a side-coupled quantum dot positioned at an edge of a Hall bar. By measuring the tunneling of electrons from the Hall bar into the dot, we acquire information on the local electrochemical potential and electron temperature. Furthermore, this method allows us to observe the spatial modulation of the electrostatic potential at the edge state due to many-body screening effect.
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U2 - 10.1103/PhysRevB.81.245302
DO - 10.1103/PhysRevB.81.245302
M3 - Article
AN - SCOPUS:77956329822
SN - 0163-1829
VL - 81
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 24
M1 - 245302
ER -