Frictional Coulomb drag in strong magnetic fields
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Frictional Coulomb drag in strong magnetic fields. / Bønsager, Martin Christian; Flensberg, Karsten.
I: Physical Review B - Condensed Matter and Materials Physics, Bind 56, Nr. 16, 01.01.1997, s. 10314-10325.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Frictional Coulomb drag in strong magnetic fields
AU - Bønsager, Martin Christian
AU - Flensberg, Karsten
PY - 1997/1/1
Y1 - 1997/1/1
N2 - A treatment of frictional Coulomb drag between two two-dimensional electron layers in a strong perpendicular magnetic field, within the independent electron picture, is presented. Assuming fully resolved Landau levels, the linear response theory expression for the transresistivity (Formula presented) is evaluated using diagrammatic techniques. The transresistivity is given by an integral over energy and momentum transfer weighted by the product of the screened interlayer interaction and the phase space for scattering events. We demonstrate, by a numerical analysis of the transresistivity, that for well-resolved Landau levels the interplay between these two factors leads to characteristic features in both the magnetic field and the temperature dependence of (Formula presented) Numerical results are compared with recent experiments.
AB - A treatment of frictional Coulomb drag between two two-dimensional electron layers in a strong perpendicular magnetic field, within the independent electron picture, is presented. Assuming fully resolved Landau levels, the linear response theory expression for the transresistivity (Formula presented) is evaluated using diagrammatic techniques. The transresistivity is given by an integral over energy and momentum transfer weighted by the product of the screened interlayer interaction and the phase space for scattering events. We demonstrate, by a numerical analysis of the transresistivity, that for well-resolved Landau levels the interplay between these two factors leads to characteristic features in both the magnetic field and the temperature dependence of (Formula presented) Numerical results are compared with recent experiments.
UR - http://www.scopus.com/inward/record.url?scp=0003826350&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.56.10314
DO - 10.1103/PhysRevB.56.10314
M3 - Journal article
AN - SCOPUS:0003826350
VL - 56
SP - 10314
EP - 10325
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 16
ER -
ID: 199597311