Abstract
The transport properties of a lateral surface superlattice, a two-dimensional (2D) electron system in a 2D periodic potential, are studied with a molecular-dynamics Monte Carlo technique including the Coulomb interaction. Excellent numerical energy conservation is achieved by adopting a predictor-corrector algorithm to integrate the equations of motion. With increasing 2D potential amplitude, electrons show a transition, from a mobile phase to an immobile phase, where the radial distribution function has some characteristic peaks, indicating the beginning of the long-range ordering of the electrons in the potential minima. The velocity autocorrelation function shows a 2D plasma oscillation in the mobile phase, while in the immobile phase the classical oscillation at the bottom of the potential well is observed. Raising the temperature improves the transport since electrons are released from the constraint of the 2D potential and the Coulomb potential.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 6416-6426 |
| Number of pages | 11 |
| Journal | Physical Review B |
| Volume | 47 |
| Issue number | 11 |
| DOIs | |
| State | Published - 1993 |
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ASJC Scopus subject areas
- Condensed Matter Physics
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Coupled molecular-dynamics Monte Carlo study of the transport properties of lateral surface superlattices. / Yamada, Toshishige; Ferry, D. K.
In: Physical Review B, Vol. 47, No. 11, 1993, p. 6416-6426.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Coupled molecular-dynamics Monte Carlo study of the transport properties of lateral surface superlattices
AU - Yamada, Toshishige
AU - Ferry, D. K.
PY - 1993
Y1 - 1993
N2 - The transport properties of a lateral surface superlattice, a two-dimensional (2D) electron system in a 2D periodic potential, are studied with a molecular-dynamics Monte Carlo technique including the Coulomb interaction. Excellent numerical energy conservation is achieved by adopting a predictor-corrector algorithm to integrate the equations of motion. With increasing 2D potential amplitude, electrons show a transition, from a mobile phase to an immobile phase, where the radial distribution function has some characteristic peaks, indicating the beginning of the long-range ordering of the electrons in the potential minima. The velocity autocorrelation function shows a 2D plasma oscillation in the mobile phase, while in the immobile phase the classical oscillation at the bottom of the potential well is observed. Raising the temperature improves the transport since electrons are released from the constraint of the 2D potential and the Coulomb potential.
AB - The transport properties of a lateral surface superlattice, a two-dimensional (2D) electron system in a 2D periodic potential, are studied with a molecular-dynamics Monte Carlo technique including the Coulomb interaction. Excellent numerical energy conservation is achieved by adopting a predictor-corrector algorithm to integrate the equations of motion. With increasing 2D potential amplitude, electrons show a transition, from a mobile phase to an immobile phase, where the radial distribution function has some characteristic peaks, indicating the beginning of the long-range ordering of the electrons in the potential minima. The velocity autocorrelation function shows a 2D plasma oscillation in the mobile phase, while in the immobile phase the classical oscillation at the bottom of the potential well is observed. Raising the temperature improves the transport since electrons are released from the constraint of the 2D potential and the Coulomb potential.
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U2 - 10.1103/PhysRevB.47.6416
DO - 10.1103/PhysRevB.47.6416
M3 - Article
VL - 47
SP - 6416
EP - 6426
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 11
ER -