Quantum hall Effect in Graphene
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Date
2015-10
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Addis Ababa University
Abstract
We studied Quantum Hall E ect with and without magnetic eld in graphene. The quan-
tum Hall e ect is a quantum-mechanical version of the Hall e ect, observed in graphene, in
which the Hall conductance ( H) takes on the quantized values ( e2/h) with = 4(n+1
2 )
an integer (integer quantized Hall E ect in graphene). Our study con rmed that there
is a zero energy Landau level in graphene with magnetic elds. The fractional quantum
Hall e ect in graphene is observed as the result of coulomb interaction and correlation of
electrons
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Keywords
Quantum hall Effect