Abstract
We study the properties of the logarithmic variation observed in the temperature-dependent conductance of open quantum-dot arrays. The magnitude of this variation is found to exhibit a well-defined scaling with system size, and is also found to be unaffected by the application of magnetic fields sufficient to break time-reversal symmetry. We suggest that these characteristics are consistent with the logarithmic variation resulting from a confinement-induced enhancement of electron interactions in the arrays. In particular, we note that the size-dependent scaling of this term is similar to that which we would expect for a system whose boundary interactions act to amplify the mutual repulsion of electrons trapped within it.
Original language | English (US) |
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Article number | 241302 |
Pages (from-to) | 2413021-2413024 |
Number of pages | 4 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 63 |
Issue number | 24 |
State | Published - 2001 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics