TY - JOUR
T1 - Edge reconstruction in the ν=2/3 fractional quantum hall state
AU - Wang, Jianhui
AU - Meir, Yigal
AU - Gefen, Yuval
N1 - Kreitman Foundation; ISF; BSF; GIF; MINERVAThe authors thank M. Heiblum for discussions. Support was provided by the Kreitman Foundation, ISF, BSF, GIF, and MINERVA.
PY - 2013/12/9
Y1 - 2013/12/9
N2 - The edge structure of the ν=2/3 fractional quantum Hall state has been studied for several decades, but recent experiments, exhibiting upstream neutral mode(s), a plateau at a Hall conductance of 13(e2/h) through a quantum point contact, and a crossover of the effective charge, from e/3 at high temperature to 2e/3 at low temperature, could not be explained by a single theory. Here we develop such a theory, based on edge reconstruction due to a confining potential with finite slope, that admits an additional ν=1/3 incompressible strip near the edge. Renormalization group analysis of the effective edge theory due to disorder and interactions explains the experimental observations.
AB - The edge structure of the ν=2/3 fractional quantum Hall state has been studied for several decades, but recent experiments, exhibiting upstream neutral mode(s), a plateau at a Hall conductance of 13(e2/h) through a quantum point contact, and a crossover of the effective charge, from e/3 at high temperature to 2e/3 at low temperature, could not be explained by a single theory. Here we develop such a theory, based on edge reconstruction due to a confining potential with finite slope, that admits an additional ν=1/3 incompressible strip near the edge. Renormalization group analysis of the effective edge theory due to disorder and interactions explains the experimental observations.
UR - http://www.scopus.com/inward/record.url?scp=84890283756&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.111.246803
DO - 10.1103/PhysRevLett.111.246803
M3 - مقالة
SN - 0031-9007
VL - 111
JO - Physical review letters
JF - Physical review letters
IS - 24
M1 - 246803
ER -