Quasiparticle energy spectrum in ferromagnetic Josephson weak links

Details Quasiparticle energy spectrum in ferromagnetic Josephson weak links Quasiparticle energy spectrum in ferromagnetic Josephson weak links

1999-11-22

arxiv.org/abs/cond-mat/9911339v1

Physics

Condensed Matter

Superconductivity

11 pages, 6 figures

Scientific paper

10.1016/S0921-4534(00)00006-X

The quasiparticles energy spectrum in clean ferromagnetic weak links between conventional superconductors is calculated. Large peaks in DOS, due to a special case of Andreev reflection at the ferromagnetic barrier, correspond to spin-splitt bound states. Their energies are obtained as a function of the barrier thickness, exchange field strength, and of the macroscopic phase difference $\phi$ at the link, related to the Josephson current. In the ground state, $\phi$ can be 0 or $\pi$, depending on the ferromagnetic barrier influence. Conditions for the appearence of the zero-energy bound states (ZES) and for the spin polarized ground state (SPGS) are obtained analytically. It is shown that ZES appear only outside the weak link ground state.

Affiliated with

Also associated with

No associations

Rating

Quasiparticle energy spectrum in ferromagnetic Josephson weak links does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quasiparticle energy spectrum in ferromagnetic Josephson weak links, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quasiparticle energy spectrum in ferromagnetic Josephson weak links will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-654455