Resonant Tunneling in an Aharonov-Bohm Ring with a Quantum Dot

Jian Wu; Bing-Lin Gu; Hao Chen; Wenhui Duan; Yoshiyuki Kawazoe

doi:10.1103/PhysRevLett.80.1952

Resonant Tunneling in an Aharonov-Bohm Ring with a Quantum Dot

Jian Wu, Bing-Lin Gu, Hao Chen, Wenhui Duan, and Yoshiyuki Kawazoe

Phys. Rev. Lett. 80, 1952 – Published 2 March 1998

Abstract

We investigate the resonant tunneling in an Aharonov-Bohm ring with a quantum dot embedded in one of its arms. A complete transmission mechanism, considering both the resonance of the dot and the interference effect, is presented. As a consequence, the experimental results, the phase features for conductance peaks, are well explained by a one-dimensional noninteracting model. New features concerning temperature effects are predicted.

Received 14 May 1997

DOI:https://doi.org/10.1103/PhysRevLett.80.1952

Authors & Affiliations

Jian Wu^1,2, Bing-Lin Gu^1,2, Hao Chen³, Wenhui Duan², and Yoshiyuki Kawazoe⁴

¹Center for Advanced Study, Tsinghua University, Beijing 100084, People's Republic of China
²Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
³Department of Physics, Fudan University, Shanghai 200433, People's Republic of China
⁴Institute for Materials Research, Tohoku University, Sendai 980-77, Japan