Magnetic moment manipulation by a Josephson current
BUZDIN, Alexandre I.
Centre de physique moléculaire optique et hertzienne [CPMOH]
Institut universitaire de France [IUF]
Centre de physique moléculaire optique et hertzienne [CPMOH]
Institut universitaire de France [IUF]
BUZDIN, Alexandre I.
Centre de physique moléculaire optique et hertzienne [CPMOH]
Institut universitaire de France [IUF]
< Réduire
Centre de physique moléculaire optique et hertzienne [CPMOH]
Institut universitaire de France [IUF]
Langue
en
Article de revue
Ce document a été publié dans
Physical Review Letters. 2009-01-05, vol. 102, p. 017001
American Physical Society
Résumé en anglais
We consider a Josephson junction where the weak-link is formed by a non-centrosymmetric ferromagnet. In such a junction, the superconducting current acts as a direct driving force on the magnetic moment. We show that the ...Lire la suite >
We consider a Josephson junction where the weak-link is formed by a non-centrosymmetric ferromagnet. In such a junction, the superconducting current acts as a direct driving force on the magnetic moment. We show that the a.c. Josephson effect generates a magnetic precession providing then a feedback to the current. Magnetic dynamics result in several anomalies of current-phase relations (second harmonic, dissipative current) which are strongly enhanced near the ferromagnetic resonance frequency.< Réduire
Mots clés
superconductor/ferromagnet/superconductor junction
Josephson junction
spin-orbit coupling
magnetization dynamics
Landau-Lifshitz-Gilbert equation
Project ANR
Electronic EPR Source - ANR-07-NANO-0011
Origine
Importé de halUnités de recherche