Alternative mechanism for the sign-reversal effect in superconductor-ferromagnet-superconductor Josephson junctions
A. F. Volkov, A. Anishchanka
DOI 10.1103/PhysRevB.71.024501 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We consider a simple model of a multidomain superconductor-ferromagnet-superconductor (SFS) Josephson junction. Sign-alternating magnetization M in domains leads to a spatial modulation of the phase difference ϕ(x). Due to this modulation the Josephson critical current Ic may have a different sign depending on the ratio of the magnetic flux in a domain, 4πMa(2dF), to the magnetic flux quantum. This phase modulation, but not a nonmonotonic dependence of the local critical current density jc, may be the reason for oscillations of the current Ic as a function of the F layer thickness 2dF or temperature, observed in experiments.
Similar papers
Charge and spin currents in ferromagnetic Josephson junctions
similarity 0.91Klaus Halterman et al.
Source status unknown — claims are unverified
Sign reversal of ac Josephson current in a ferromagnetic Josephson junction
similarity 0.90S. Hikino et al. · 2008 · arXiv:0809.1470
Source status unknown — claims are unverified
Spin Controlled Coexistence of 0 and π States in SFSFS Josephson Junctions
similarity 0.89Mohammad Alidoust & Klaus Halterman · 2014 · arXiv:1405.0012
Source status unknown — claims are unverified
Tunable critical supercurrent and spin-asymmetric Josephson effect in superlattices
similarity 0.89Juha M. Kreula et al. · 2013 · arXiv:1308.3626
Source status unknown — claims are unverified
Josephson effect in superconductor/ferromagnet-normal/superconductor structures
similarity 0.89T. Yu. Karminskaya et al.
Source status unknown — claims are unverified
Superconductor/normal-metal/superconductor junction of topological superconductors revisited: Fractional Josephson current, fermion parity, and oscillating wave functions
similarity 0.89Shuntaro Sumita & Akira Furusaki
Source status unknown — claims are unverified