One-dimensional shell-filling and single spin polarization in carbon nanotube quantum dots

Koji Ishibashi; Satoshi Moriyama; Tomoko Fuse; Daiju Tsuya; Yoichi Ishiwata

doi:10.1117/12.580039

25 March 2005 One-dimensional shell-filling and single spin polarization in carbon nanotube quantum dots

Koji Ishibashi, Satoshi Moriyama, Tomoko Fuse, Daiju Tsuya, Yoichi Ishiwata

Proceedings Volume 5732, Quantum Sensing and Nanophotonic Devices II; (2005) https://doi.org/10.1117/12.580039
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

Abstract

Quantum dots have been fabricated in an individual single-wall carbon nanotube, and their single electron transport has been measured at low temperatures with magnetic field up to 5T. The Coulomb diamonds have shown two and four electron periodicities in different gate voltage ranges. The results can be understood by the two- or four-electron shell filling model. In magnetic fields, the Zeeman splitting of single particle levels has been observed. This means that the single spin polarization is realized when an odd number of electrons are in the dot. The experimental observation suggests an important step for realization of the spin qubit.

Citation Download Citation

Koji Ishibashi, Satoshi Moriyama, Tomoko Fuse, Daiju Tsuya, and Yoichi Ishiwata "One-dimensional shell-filling and single spin polarization in carbon nanotube quantum dots", Proc. SPIE 5732, Quantum Sensing and Nanophotonic Devices II, (25 March 2005); https://doi.org/10.1117/12.580039

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available