AharonovBohm Magnetization of Mesoscopic Rings Caused by Inelastic Relaxation
Abstract
The magnetization of a system of many mesoscopic rings under nonequilibrium conditions is considered. The corresponding disorderaveraged current in a ring I(φ) is shown to be a sum of the ``thermodynamic'' and ``kinetic'' contributions both resulting from the electronelectron interaction. The thermodynamic part can be expressed through the diagonal matrix elements J_{μμ} of the current operator in the basis of exact manybody eigenstates and is a generalization of the equilibrium persistent current. The novel kinetic part is present only out of equilibrium and is governed by the offdiagonal matrix elements J_{μν}. It has drastically different temperature and magnetic field behavior.
 Publication:

Physical Review Letters
 Pub Date:
 October 2002
 DOI:
 10.1103/PhysRevLett.89.176601
 arXiv:
 arXiv:condmat/0204176
 Bibcode:
 2002PhRvL..89q6601C
 Keywords:

 72.15.Rn;
 72.20.Ht;
 72.70.+m;
 73.23.b;
 Localization effects;
 Highfield and nonlinear effects;
 Noise processes and phenomena;
 Electronic transport in mesoscopic systems;
 Condensed Matter  Mesoscale and Nanoscale Physics
 EPrint:
 4 pages RevTeX, two figures