QUANTUM STATES OF SELF-ASSEMBLED INAS DOTS PROBEDBY MAGNETO-TUNNELING SPECTROSCOPY |
| A. Patane, L. Eaves, P.C. Main, A. Levin, M.L. Zambrano, M. Henini School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, UK E.E. Vdovin, Y.V. Dubrovskii Institute of Microelectronics Technology, RAS, 142432 Chernogolovka, Russia and G. Hill Dept. of Electronic and Electrical Engineering, University of Sheffield, S3 3JD Sheffield, UK |
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| We present an experimental study of the electron wave function in InAs/GaAs self-assembled quantum dots. Magneto-tunneling spectroscopy is employed as a non-invasive probe to produce two-dimensional images of the probability density of an electron confined in a quantum dot. The images reveal the elliptical symmetry of the ground state and the characteristic lobes of the higher energy states of the dots. |
| DOI: 10.12693/APhysPolA.100.165 PACS numbers: 73.63.--b, 73.63.Kv, 73.43.Jn |