Enhancement of Flux Pinning in the Superconductor-Ferromagnet Bilayer Nb(Co/Pd)

• Authors: Y. Syryanyy , L. Zhu , M. Cieplak , C. Chien
• Languages of publication: EN

Abstracts

EN

The magnetometry and the magnetic force microscopy are used to study the influence of the magnetic domain size on the flux pinning in a superconducting/ferromagnetic bilayer (SFB), in which the S layer is niobium and the F layer is a Co/Pd multilayer with perpendicular magnetic anisotropy. The domain size is pre-defined using the angle-dependent demagnetization. The enhancement of pinning is found to be the strongest, up to a factor of 6, for narrow domains and small magnetic fields. This result differs from the behavior observed in the SFB in which the F layer is Co/Pt. The difference may be attributed to the degree of the disorder in the domain pattern.

Keywords

EN

74.78.-w; 74.78.Fk; 74.25.Ha; 75.70.Kw; 75.70.-i; 75.70.Cn; 75.78.Fg

Discipline

• 75.70.-i: Magnetic properties of thin films, surfaces, and interfaces(for magnetic properties of nanostructures, see 75.75.-c)
• 75.78.Fg: Dynamics of domain structures
• 74.25.Ha: Magnetic properties including vortex structures and related phenomena(for vortices, magnetic bubbles, and magnetic domain structure, see 75.70.Kw)
• 74.78.-w: Superconducting films and low-dimensional structures
• 74.78.Fk: Multilayers, superlattices, heterostructures
• 75.70.Kw: Domain structure (including magnetic bubbles and vortices)(for domain structure in ferroelectricity and antiferroelectricity, see 77.80.Dj)
• 75.70.Cn: Magnetic properties of interfaces (multilayers, superlattices, heterostructures)

• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 2
• Pages: 399-401

Dates

published

2010-08

Contributors

author

Y. Syryanyy

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

L. Zhu

• Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA

author

M. Cieplak

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
• Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA

author

C. Chien

• Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA

References

• 1. L.N. Bulaevskii, E.M. Chudnovsky, M.P. Maley, Appl. Phys. Lett. 76, 2594 (2000)
• 2. M.V. Milosevic, S.V. Yampolskii, F.M. Peeters, Phys. Rev. B 66, 174519 (2002); I.F. Lyuksyutov, V.L. Pokrovsky, Adv. Phys. 54, 67 (2004)
• 3. M. Lange, M.J. Van Bael, V.V. Moshchalkov, Y. Bruynseraede, Appl. Phys. Lett. 81, 322 (2002)
• 4. M.Z. Cieplak, X.M. Cheng, C.L. Chien, Hai Sang, J. Appl. Phys. 97, 026105 (2005)
• 5. M.Z. Cieplak, Z. Adamus, A. Abal'oshev, I. Abal'osheva, M. Berkowski, X.M. Cheng, Hai Sang, C.L. Chien, Phys. Status Solidi C 2, 1650 (2005)
• 6. Z. Adamus, M.Z. Cieplak, A. Abal'oshev, M. Kończykowski, X.M. Cheng, L.Y. Zhu, C.L. Chien, Acta Phys. Pol. A 111, 95 (2007); M.Z. Cieplak, Z. Adamus, M. Kończykowski, L.Y. Zhu, C.L. Chien, ibid., 114, 23 (2008); M.Z. Cieplak, Z. Adamus, M. Kończykowski, L.Y. Zhu, X.M. Cheng, C.L. Chien, to be published
• 7. L.Y. Zhu, M.Z. Cieplak, C.L. Chien, to be published

Identifiers

DOI

10.12693/APhysPolA.118.399