Cooper electron pair

  • BCS theory

    TITLE: BCS theory
    Cooper had discovered that electrons in a superconductor are grouped in pairs, now called Cooper pairs, and that the motions of all of the Cooper pairs within a single superconductor are correlated; they constitute a system that functions as a single entity. Application of an electrical voltage to the superconductor causes all Cooper pairs to move, constituting a current. When the voltage is...
  • Cooper

    TITLE: Leon N. Cooper
  • Josephson

    TITLE: Josephson effect
    According to the BCS theory, superconductivity is a result of the correlated motion of electrons in the superconducting solid. Part of this correlation is the formation of pairs of electrons called Cooper pairs. According to Josephson, under certain circumstances these Cooper pairs move from one superconductor to the other across the thin insulating layer. Such motion of pairs of electrons...