Abstract
We employ multichannel quantum scattering theory to treat the magnetoconductance tensor of finitesize two-dimensional samples. We find that <xy(B) vanishes identically as a result of unitarity (but the Hall voltage does not vanish), <xx(B) decreases monotonically with magnetic field without any oscillation with period of the quantum flux, and for weak impurity scattering <xx(B) < is smaller (larger) than the conductance of an impurity-free sample for small (large) B values.
Original language | English |
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Pages (from-to) | 2251-2254 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 58 |
Issue number | 21 |
DOIs | |
State | Published - 1 Jan 1987 |
ASJC Scopus subject areas
- General Physics and Astronomy