𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Linear and nonlinear transports of coupled quantum dots

✍ Scribed by Shuji Tsubaki; Naoki Fujita; Fujio Wakaya; Yoshihiko Yuba; Kenji Gamo

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
786 KB
Volume
27
Category
Article
ISSN
0749-6036

No coin nor oath required. For personal study only.

✦ Synopsis

Series of double quantum dots each with a size around 400 Γ— 400 nm 2 have been realized by delineating a 2DEG in modulation-doped AlGaAs/GaAs with 100 nm wide Schottky split gates fabricated by an electron-beam lithography and a lift-off technique. The split gate in the middle of the double dot allows us to control interdot coupling widely. The charging diagram obtained from linear transports in the Coulomb blockade regime shows that the isolated dots merge into a single composite dot with increase of interdot coupling. A clear Coulomb staircase has been observed in the double-dot system at a limited highbias condition.

πŸ“œ SIMILAR VOLUMES

Probing the coherent transport through c
Probing the coherent transport through coupled quantum dots
✍ R.H. Blick; D.W. van der Weide; R.J. Haug; K. von Klitzing; K. Eberl πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 English βš– 154 KB

We investigate the photoconductance through a double quantum dot or 'artificial molecule' induced by a broadband millimeter wave source. This source functions as a heterodyne interferometer, consisting of two nonlinear transmission lines generating harmonic output in the range of 2-400 GHz, and, bei

Direct Probing of Quantum Dots through L
Direct Probing of Quantum Dots through Linear and Nonlinear Nano-Optics
✍ J.R. Guest; Xiaoqin Li; T.H. Stievater; D.G. Steel; D. Gammon πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 271 KB πŸ‘ 1 views

Dedicated to Professor Dr. Roland Zimmermann on the occasion of his 60th birthday Advances in nanoscopic probing techniques have led to the development of direct spatial and spectroscopic mapping methodologies which have revealed a wealth of information about single quantum dots. These techniques, c

Linear and nonlinear optical absorptions
Linear and nonlinear optical absorptions of a two-electron quantum dot
✍ Wenfang Xie πŸ“‚ Article πŸ“… 2010 πŸ› Elsevier Science 🌐 English βš– 259 KB

The linear and nonlinear optical absorptions of a two-electron quantum dot are studied by using the matrix diagonalization method. The oscillator strength of the transition is calculated within the effective-mass approximation, along with the linear and the third-order nonlinear and the total optica