Share Email Print
cover

Proceedings Paper

Spin coherence and conductance modulation in mesoscopic structures
Author(s): Igor E. Tralle
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

A simple theory of the quantum interference due to spin coherence and Larmor procession of the electron spin is proposed. A spin ballistic regime in a loop structure is assumed, where the phase relaxation length for the spin part of the wave function (Lphi(e)) is much greater than the relaxation length for the orbital part (Lphi(s)). In the presence of additional magnetic field, the spin part of the electron's wave function acquires a phase shift due to additional spin precession about that field. If also the structure length L is chosen such that (formula available in paper), it is possible to wash out the quantum interference related to the phase coherence of the orbital part of the wave function, retaining at the same time that related to the phase coherence of the spin part, to reveal the corresponding conductance oscillations. It is also emphasized that strong modulation of the conductance of the structure could be achieved in this way.

Paper Details

Date Published: 17 April 2001
PDF: 5 pages
Proc. SPIE 4413, International Conference on Solid State Crystals 2000: Epilayers and Heterostructures in Optoelectronics and Semiconductor Technology, (17 April 2001); doi: 10.1117/12.425416
Show Author Affiliations
Igor E. Tralle, Univ. of Rzeszow (Belarus)


Published in SPIE Proceedings Vol. 4413:
International Conference on Solid State Crystals 2000: Epilayers and Heterostructures in Optoelectronics and Semiconductor Technology
Jaroslaw Rutkowski; Jakub Wenus; Leszek Kubiak, Editor(s)

© SPIE. Terms of Use
Back to Top