𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Dephasing of coherent one-dimensional transport in a disordered wire

✍ Scribed by Pavel Vagner; Martin Moško; Peter Markoš; Thomas Schäpers

Book ID
104427717
Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
207 KB
Volume
12
Category
Article
ISSN
1386-9477

No coin nor oath required. For personal study only.

✦ Synopsis

A phenomenological model is proposed to study the e ect of phase-breaking collisions on coherent electron transport in a disordered one-dimensional single-channel GaAs wire. The mean resistance, typical resistance, and resistance distribution as functions of the wire length L, coherence length L , and localization length are traced from the coherent regime at L ¡ L up to the incoherent one at L L. We demonstrate how the phase-breaking collisions modify the coherent transport results, in particular the universally scaled distribution of resistances and the mean and typical resistance related to this distribution. Disorder in the GaAs wire, if any, is often strong. We examine the e ect of strong disorder on coherent transport and ÿnd peculiar deviations from universal scaling.

📜 SIMILAR VOLUMES

Direct measurement of excitation transpo
Direct measurement of excitation transport in a highly disordered quasi-one-dimensional solid
✍ D.D. Smith; R.C. Powell; A.H. Zewail 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 414 KB

Measurements are presented of txcitation tmnsport ir i E quasi-l-D solid using time-resolved laser spectroscopy. Energy migration xs a function of temperature and dopant concentration is describable in terms of step-\%ise incoherent trmsfer US~II~ a I-D sampling function\_ The data indicate the effe