Magnetic field switching in parallel quantum dots

Autor:	Li, Feng, Li, Xin-Qi, Zhang, Wei-Min, Gurvitz, S. A.
Rok vydání:	2008
Předmět:	Condensed Matter - Other Condensed Matter Condensed Matter - Mesoscale and Nanoscale Physics Quantum Physics
Zdroj:	EPL 88, 37001 (2009)
Druh dokumentu:	Working Paper
DOI:	10.1209/0295-5075/88/37001
Popis:	We show that the Coulomb blockade in parallel dots pierced by magnetic flux $\Phi$ completely blocks the resonant current for any value of $\Phi$ except for integer multiples of the flux quantum $\Phi_0$. This non-analytic (switching) dependence of the current on $\Phi$ arises only when the dot states that carry the current are of the same energy. The time needed to reach the steady state, however, diverges when $\Phi\to n\Phi_0$. Comment: additional explanations added, Europhysics Letters, in press
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0803.1618 Zobrazit plný text záznamu View this record from Arxiv