JETP Letters: issues online

$In superconductors near the critical temperature Tc there can exist weakly damped collective oscillations of the velocity of the condensate ps/m and of the electric field E(x,t)= — \7Φ(χ,ί).Ι'·21 The effects connected with the onset of such oscillations and with the penetration of the field Ε to a considerable depth into the superconductor lead, as will be shown in the present communication, to interesting singularities in the behavior of Josephson junctions. This pertains to such types of weakly-coupled superconductors, in which the current density j does not depend on the coordinates (as, for example, in Mercereau-Notarys bridges[3]). Injunctions of the point-contact type, these effects are of little significance, since the law governing the field decreases in them as determined by the geometry of the contact.'41$

In superconductors near the critical temperature T_c there can exist weakly damped collective oscillations of the velocity of the condensate p_s/m and of the electric field E(x,t)= — \7Φ(χ,ί).Ι'·²1 The effects connected with the onset of such oscillations and with the penetration of the field Ε to a considerable depth into the superconductor lead, as will be shown in the present communication, to interesting singularities in the behavior of Josephson junctions. This pertains to such types of weakly-coupled superconductors, in which the current density j does not depend on the coordinates (as, for example, in Mercereau-Notarys bridges^[3]). Injunctions of the point-contact type, these effects are of little significance, since the law governing the field decreases in them as determined by the geometry of the contact.'⁴¹