Magnetic and electric Aharonov-Bohm effects in nanostructures
Date
1996
Authors
Kulik, I. O.
Advisor
Instructor
Source Title
Physica B: Condensed Matter
Print ISSN
0921-4526
Electronic ISSN
Publisher
Elsevier BV
Volume
218
Issue
1-4
Pages
252 - 257
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
Abstract
The paper reviews and extends the magnetic Aharonov-Bohm effect (persistent current, resistance oscillation) in normal-metal rings including spin-independent and spin-dependent hopping, Zeeman splitting, magnetic textures and wheels, ring rotation and weak coupling, as well as the electric Aharonov-Bohm effect ("persistent charge") in small metallic contacts. We then discuss dynamical screening effects in a surface charge in a metal. Energy dissipation due to motion of the surface charge has a singularity at the velocity of motion equal to the phonon propagation velocity. Surface image of an external charge inside the metal is strongly distorted at the velocity of motion larger than the Fermi velocity.
Course
Other identifiers
Book Title
Keywords
Electric charge, Electric field effects, Electron energy levels, Energy dissipation, Fermi surface, Magnetic field effects, Metals, Nanostructured materials, Velocity, Electric Aharonov-Bohm effect, Fermi velocity, Magnetic Aharonov-Bohm effect, Metal rings, Screening effects, Surface charge, Point contacts