Current Rectification by Pauli Exclusion in a Weakly Coupled Double Quantum Dot System-Reference-Cited by-同舟云学术

Current Rectification by Pauli Exclusion in a Weakly Coupled Double Quantum Dot System

Published:2002-08-23 Issue:5585 Volume:297 Page:1313-1317
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Ono K.¹,Austing D. G.²³,Tokura Y.²,Tarucha S.¹²⁴

Affiliation:

1. Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113–0033, Japan.

2. Nippon Telegraph and Telephone Basic Research Laboratories, NTT Corporation, Atsugi-shi, Kanagawa 243–0198, Japan.

3. Institute for Microstructural Sciences M23A, National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada.

4. Exploratory Research for Advanced Technology Mesoscopic Correlation Project, Japan Science and Technology, Atsugi-shi, Kanagawa 243–0198, Japan.

Abstract

We observe spin blockade due to Pauli exclusion in the tunneling characteristics of a coupled quantum dot system when two same-spin electrons occupy the lowest energy state in each dot. Spin blockade only occurs in one bias direction when there is asymmetry in the electron population of the two dots, leading to current rectification. We induce the collapse of the spin blockade by applying a magnetic field to open up a new spin-triplet current-carrying channel.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference35 articles.

1. See for example

2. Electronics using hybrid-molecular and mono-molecular devices

3. and references therein.

4. Rectifying Behavior in Coulomb Blockades: Charging Rectifiers

5. Experimental Test of the Quantum Shot Noise Reduction Theory

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