On the theory of the proximity effect in atomic scale superconducting/normal metal multilayered structures

Xavier Montiel (1) , Alexandre I. Buzdin (2, 3)

1 International Institute of Physics [Natal]
2 LOMA - Laboratoire Ondes et Matière d'Aquitaine
3 IUF - Institut universitaire de France

We determine the influence of the electronic band structure and interlayer coupling on the superconducting properties of quasi-two-dimensional superconductor (S)-normal metal (N) nanostructures. An exact analytical solution of the Gor'kov equations which describes the superconducting properties and the local density of states in S/N/.../N multilayers is found. We study the influence of the electronic spectra, the interlayer coupling and the total number of layers on the local density of states and the superconducting properties of S/N/.../N structures. Moreover, we investigate the impact of the parameters mentioned above on the critical Josephson current in S/N/.../N/S junctions.

Domaines: Supraconductivité [cond-mat.supr-con]

Xavier Montiel, Alexandre I. Buzdin. On the theory of the proximity effect in atomic scale superconducting/normal metal multilayered structures. Superconductor Science and Technology, 2013, 26 (08), pp.085011 (1-16). ⟨10.1088/0953-2048/26/8/085011⟩. ⟨hal-00858351⟩