Work

Aharonov-Bohm Oscillations Changed by Indirect Interdot Tunneling via Electrodes in Parallel-Coupled Vertical Double Quantum Dots

Year: 2011

Type: article

Abstract: Aharonov-Bohm (AB) oscillations are studied for a parallel-coupled vertical double quantum dot with a common source and drain electrode. We observe AB oscillations of current via a one-electron bonding state as the ground state and an antibonding state as the excited state. As the center gate voltage becomes more negative, the oscillation period is clearly halved for both the bonding and antibonding states, and the phase changes by half a period for the antibonding state. This result can be explained by a calculation that takes account of the indirect interdot coupling via the two electrodes.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.106.076801

Authors: T. Hatano, T. Kubo, Y. Tokura, S. Amaha, S. Teraoka, S. Tarucha

Institutions: Japan Science and Technology Agency, NTT Basic Research Laboratories, The University of Tokyo

Language: English

Topic: Quantum and electron transport phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Japan Society for the Promotion of Science

OpenAlex ID: W2080120757

FWCI: 3.809

Cites: 14

Cited by: 49

Related to: 10