Abstract
Previously, there has been much discussion about the zero-field resistance peaks observed in experiments on quantum dots and how this effect can be interpreted as weak localization. Performing numerical simulations of quantum dots of different sizes and shapes, we obtain resistance peaks similar to those obtained experimentally. However, our results show that these peaks may have a different origin, occurring as a result of a conductance resonance structure that is a reflection of the underlying energy spectrum. Importantly, our results explain why such peaks are ubiquitous and occur in instances where the underlying assumptions of the weak-localization theory are not being satisfied.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2680-2690 |
| Number of pages | 11 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 60 |
| Issue number | 4 |
| State | Published - Jul 15 1999 |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Weak localization in ballistic quantum dots. / Akis, R.; Ferry, D. K.; Bird, J. P.; Vasileska, Dragica.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 60, No. 4, 15.07.1999, p. 2680-2690.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Weak localization in ballistic quantum dots
AU - Akis, R.
AU - Ferry, D. K.
AU - Bird, J. P.
AU - Vasileska, Dragica
PY - 1999/7/15
Y1 - 1999/7/15
N2 - Previously, there has been much discussion about the zero-field resistance peaks observed in experiments on quantum dots and how this effect can be interpreted as weak localization. Performing numerical simulations of quantum dots of different sizes and shapes, we obtain resistance peaks similar to those obtained experimentally. However, our results show that these peaks may have a different origin, occurring as a result of a conductance resonance structure that is a reflection of the underlying energy spectrum. Importantly, our results explain why such peaks are ubiquitous and occur in instances where the underlying assumptions of the weak-localization theory are not being satisfied.
AB - Previously, there has been much discussion about the zero-field resistance peaks observed in experiments on quantum dots and how this effect can be interpreted as weak localization. Performing numerical simulations of quantum dots of different sizes and shapes, we obtain resistance peaks similar to those obtained experimentally. However, our results show that these peaks may have a different origin, occurring as a result of a conductance resonance structure that is a reflection of the underlying energy spectrum. Importantly, our results explain why such peaks are ubiquitous and occur in instances where the underlying assumptions of the weak-localization theory are not being satisfied.
UR - http://www.scopus.com/inward/record.url?scp=0001651953&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0001651953&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0001651953
VL - 60
SP - 2680
EP - 2690
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 4
ER -