Origin of pinning enhancement in a ferromagnet-superconductor bilayer | Zendy

Marta Z. Cieplak | Zendy; Xuemei Cheng | Zendy; C. L. Chien | Zendy; H. Sang | Zendy

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Origin of pinning enhancement in a ferromagnet-superconductor bilayer

Author(s) -

Marta Z. Cieplak,

Xuemei Cheng,

C. L. Chien,

H. Sang

Publication year - 2004

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.1839631

Subject(s) - condensed matter physics , ferromagnetism , superconductivity , pinning force , materials science , bilayer , domain wall (magnetism) , vortex , magnetic domain , magnetization , anisotropy , flux pinning , magnetic anisotropy , magnetic field , high temperature superconductivity , physics , critical current , chemistry , membrane , biochemistry , quantum mechanics , thermodynamics

Vortex pinning has been studied for the superconducting Nb film covering ferromagnetic CoPt multilayer with perpendicular magnetic anisotropy, in which the magnetization reversal proceeds via domain-wall motion. Large enhancement of pinning in the Nb film has been observed in the final stages of the reversal process, and we demonstrate that it is caused by residual uninverted dendrite-shaped magnetic domains. © 2005 American Institute of Physics.

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