Peculiar properties of the Josephson junction at the transition from 0 to Pi state - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2005

Peculiar properties of the Josephson junction at the transition from 0 to Pi state

Résumé

It is demonstrated that in the diffusive superconductor-ferromagnet-superconductor (S/F/S) junctions the current-phase relation is practically sinusoidal everywhere except in a narrow region near the 0-Pi transition. In this region the second harmonic dominates the scenario of the 0-Pi transition. We predict a first order transition for the S/F/S junctions with a homogeneous F barrier. However, in real junctions a small modulation of the thickness of the barrier may favor the continious 0-Pi transition and the realisation of the Josephson junction with an arbitrary ground state phase difference. The performed calculations of the second harmonic amplitude provide a natural explanation of the recent contradictory results on the second harmonic measurements.

Dates et versions

hal-00401482 , version 1 (03-07-2009)

Identifiants

Citer

Alexandre I. Buzdin. Peculiar properties of the Josephson junction at the transition from 0 to Pi state. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2005, 72 (10), pp.100501 (1-4). ⟨10.1103/PhysRevB.72.100501⟩. ⟨hal-00401482⟩

Collections

CNRS LOMA
31 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More