Circulating electrons, superconductivity, and the Darwin-Breit interaction

Дата и время публикации : 2000-02-07T16:32:44Z

Авторы публикации и институты :
Hanno Essen

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 10 pages, no figures, minor corrections in this version
Первичная категория: cond-mat.supr-con

Все категории : cond-mat.supr-con, cond-mat.mes-hall

Краткий обзор статьи: The importance of the Darwin-Breit interaction between electrons in solids at low temperatures is investigated. The model problem of particles on a circle is used and applied to mesoscopic metal rings in their normal state. The London moment formula for a rotating superconducting sphere is used to calculate the number, $N$, of superconducting electrons on the sphere. This number is found to be three times the radius, $R$, of the sphere divided by the classical electron radius, i.e. $N=3R/r_{rm e}$. The Darwin-Breit interaction gives a natural explanation for this relation from first principles. It also is capable of electron pairing. Collective effects of this interaction require a minimum of two dimensions but electron pairing is enhanced in one-dimensional systems.

Category: Physics