Effect of Magnetic Field on Quasiparticle Branches of Intrinsic Josephson Junctions with Ferromagnetic Layer
The interlayer tunneling spectroscopy has been performed on micron-sized mesa arrays of HgBr2 intercalated superconducting Bi2212 single crystals. A ferromagnetic multilayer (Au/Co/Au) is deposited on top of the mesas. The spin-polarized current is driven along the c-axis of the mesas through a ferromagnetic Co layer and the hysteretic quasiparticle branches are observed at 4.2 K. Magnetic field evolution of hysteretic quasiparticle branches is obtained to examine the effect of injected spin-polarized current on intrinsic Josephson junction characteristics. It is observed that there is a gradual distribution in quasiparticle branches with the application of magnetic field and increasing field reduces the switching current progressively.
L. Ozyuzer et al., "Effect of Magnetic Field on Quasiparticle Branches of Intrinsic Josephson Junctions with Ferromagnetic Layer," Physica C: Superconductivity and its Applications, vol. 460-462 II, no. SPEC. ISS., pp. 950-951, Elsevier, Sep 2007.
The definitive version is available at http://dx.doi.org/10.1016/j.physc.2007.03.322
Geosciences and Geological and Petroleum Engineering
Keywords and Phrases
Current density; Electron tunneling; Josephson junction devices; Magnetic fields; Spin polarization; Intrinsic Josephson junctions; Spin-polarized currents; Switching currents; Tunneling spectroscopy; Ferromagnetic materials
International Standard Serial Number (ISSN)
Article - Journal
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