2,308 research outputs found
Use of a field-based water elutriation system for monitoring the in situ particle size characteristics of fluvial suspended sediment
Effective particle size characteristics of fluvial suspended sediment transported by lowland British rivers
Some sampling considerations in the design of effective strategies for monitoring sediment-associated transport
Dispersive Soft Ferrite Models For Time Domain Simulation And their application To Accelerator Component Modeling
Earth is (mostly) flat: Apportionment of the flux of continental sediment over millennial time scales Comment
Transport between edge states in multilayer integer quantum Hall systems: exact treatment of Coulomb interactions and disorder
A set of stacked two-dimensional electron systems in a perpendicular magnetic
field exhibits a three-dimensional version of the quantum Hall effect if
interlayer tunneling is not too strong. When such a sample is in a quantum Hall
plateau, the edge states of each layer combine to form a chiral metal at the
sample surface. We study the interplay of interactions and disorder in
transport properties of the chiral metal, in the regime of weak interlayer
tunneling. Our starting point is a system without interlayer tunneling, in
which the only excitations are harmonic collective modes: surface
magnetoplasmons. Using bosonization and working perturbatively in the
interlayer tunneling amplitude, we express transport properties in terms of the
spectrum for these collective modes, treating electron-electron interactions
and impurity scattering exactly. We calculte the conductivity as a function of
temperature, finding that it increases with increasing temperature as observed
in recent experiments. We also calculate the autocorrelation function of
mesoscopic conductance fluctuations induced by changes in a magnetic field
component perpendicular to the sample surface, and its dependence on
temperature. We show that conductance fluctuations are characterised by a
dephasing length that varies inversely with temperature.Comment: 13 pages, 10 figures, minor changes made for publicatio
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