Adjustable Superconducting Anisotropy in Superconductor-Ferromagnet Bilayers
- Resource Type
- Periodical
- Authors
- Karapetrov, G.; Belkin, A.; Novosad, V.; Iavarone, M.; Fedor, J.; Pearson, J. E.; Petrean-Troncalli, A.
- Source
- IEEE Transactions on Applied Superconductivity IEEE Trans. Appl. Supercond. Applied Superconductivity, IEEE Transactions on. 19(3):3471-3474 Jun, 2009
- Subject
- Fields, Waves and Electromagnetics
Engineered Materials, Dielectrics and Plasmas
Anisotropic magnetoresistance
Magnetic domain walls
Magnetic domains
Magnetic anisotropy
Perpendicular magnetic anisotropy
Superconducting magnets
Magnetic properties
Couplings
Magnetic films
Superconducting films
Permalloy films
superconducting films
superconducting switches
superconductor-ferromagnet hybrids
- Language
- ISSN
- 1051-8223
1558-2515
2378-7074
We demonstrate novel magneto-transport properties of magnetically coupled superconductor-ferromagnet (MoGe/Permalloy) bilayers. Ferromagnetic Permalloy film exhibiting stripe domains with rotatable anisotropy induces modulation of the order parameter in the superconducting thin film. Domain-wall superconductivity is localized above the magnetic domain walls forming mesoscopic superfluid channels. We can achieve non-volatile re-configuration of the in-plane direction of the superconducting channels by changing the orientation of the stripe domains in the Permalloy. We discuss the influence of magnetic domain structure on Abrikosov vortex dynamics in this system.