Spin polarized and degenerate tunneling spectra in intrinsic Josephson junctions of Bi2212 | Zendy

Ozdemir M. | Zendy; Ozyuzer L. | Zendy; Kurter C. | Zendy

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Spin polarized and degenerate tunneling spectra in intrinsic Josephson junctions of Bi2212

Author(s) -

Ozdemir M.,

Ozyuzer L.,

Kurter C.

Publication year - 2007

Publication title -

physica status solidi c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.21

H-Index - 46

eISSN - 1610-1642

pISSN - 1862-6351

DOI - 10.1002/pssc.200673312

Subject(s) - condensed matter physics , quantum tunnelling , degenerate energy levels , quasiparticle , stack (abstract data type) , josephson effect , spin (aerodynamics) , magnetic field , superconductivity , ferromagnetism , materials science , physics , quantum mechanics , computer science , thermodynamics , programming language

Tunneling characteristics of HgBr 2 intercalated superconducting Bi2212 single crystals have been obtained by using 10 x 10 mm 2 intrinsic Josephson junction stacks, so called mesa structures. The spin degenerate current is driven along the c‐axis with Au layer using point contact tunneling assembly at 4.2 K. The spin polarized current is also driven along the c‐axis of crystals with Au/Co/Au multilayer. In order to understand the role of ferromagnetic layer (Co), quasiparticle branches are examined with and without magnetic field. The magnetic field evolution of switching currents are obtained for gaining further insight about the spin injection through the stack. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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