Localization, De-Localization, Phase Breaking and Energy Relaxation in an Array of Quantum Dots

• Published in: Physica status solidi. B. Basic research Vol. 224; no. 3; pp. 665 - 668
• Main Authors: Prasad, C., Ferry, D.K., Shailos, A., El-Hassan, M., Bird, J.P., Lin, L.-H., Aoki, N., Ochiai, Y., Ishibashi, K., Aoyagi, Y.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Berlin WILEY-VCH Verlag Berlin GmbH 01.04.2001; WILEY‐VCH Verlag Berlin GmbH; Wiley
• Subjects: 73.21.La; 73.23.-b; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Electron states and collective excitations in thin films, multilayers, quantum wells, mesoscopic and nanoscale systems; Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures; Electronic transport in mesoscopic systems; Exact sciences and technology; Mesoscopic systems; Physics; Quantum dots; S7.12; Aluminium arsenides; Gallium arsenides; Inorganic compounds; Semiconductor materials; Quantum dots; Ternary compounds; Binary compounds; Electron delocalization; Experimental study; Electron localization; Energy relaxation
• ISSN: 0370-1972; 1521-3951
• DOI: 10.1002/(SICI)1521-3951(200104)224:3<665::AID-PSSB665>3.0.CO;2-5

We have studied both the phase‐relaxation time and the energy‐relaxation time in arrays of quantum dots. The variations of phase‐breaking time with respect to temperature and current were related, suggesting a common electron temperature dependence, although these times differ by several orders of magnitude.