Long-range odd triplet superconductivity in superconductor-ferromagnet structures with Néel walls
Abstract
We consider a multidomain superconductor/ferromagnet (SF) structure with an in-plane magnetization, assuming that the neighboring domains are separated by the Néel domain walls. We show that an odd triplet long-range component arises in the domain walls and spreads into domains over a long distance of the order ξT=D/2πT (in the dirty limit). The density of states variation in the domains due to this component changes over distances of the order ξT and turns to zero in the middle of domains if the magnetization rotates in the same direction in all domain walls.
- Publication:
-
Physical Review B
- Pub Date:
- November 2005
- DOI:
- arXiv:
- arXiv:cond-mat/0507396
- Bibcode:
- 2005PhRvB..72r4504V
- Keywords:
-
- 74.45.+c;
- 74.78.Fk;
- 74.50.+r;
- 75.70.Kw;
- Proximity effects;
- Andreev effect;
- SN and SNS junctions;
- Multilayers superlattices heterostructures;
- Tunneling phenomena;
- point contacts weak links Josephson effects;
- Domain structure;
- Condensed Matter - Superconductivity;
- Condensed Matter - Mesoscopic Systems and Quantum Hall Effect
- E-Print:
- 9 pages (including 3 EPS figures), REVTeX 4