PERSISTENT CURRENT IN TWO SUB-RINGS COUPLED BY ONE EMBEDDED QUANTUM DOT-Reference-Cited by-同舟云学术

PERSISTENT CURRENT IN TWO SUB-RINGS COUPLED BY ONE EMBEDDED QUANTUM DOT

Published:2007-03-10 Issue:06 Volume:21 Page:885-894
ISSN:0217-9792
Container-title:International Journal of Modern Physics B
language:en
Short-container-title:Int. J. Mod. Phys. B

Author:

WANG YA-RU¹,BAI ZHI-MING²,QIU JI-QING³,CHEN YUNG-CHUNG⁴

Affiliation:

1. Mathematics and Physics Department, Shijiazhuang Railway Institute, Shijiazhuang 050043, People's Republic of China

2. Physics Department, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China

3. Mathematics Department, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China

4. Department of Physics, Tunghai University, Taichung, Taiwan, ROC

Abstract

We investigate a two sub-rings mesoscopic system embedded with one quantum dot in common. Owing to the screening cloud of the two sub-rings, the change of the magnetic flux and the number of lattice sites in one sub-ring influence the persistent current not only in itself but also in another. Kondo-assisted (suppressed) tunneling appears in the two sub-rings system constructed by even (odd) number of lattice sites.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217979207036709

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4. Influence of the electron-electron interaction on electronic spectra and persistent currents in one-dimensional loops