Effect of magnetic field on quasiparticle branches of intrinsic Josephson junctions with ferromagnetic layer

✍ Scribed by L. Ozyuzer; M. Ozdemir; C. Kurter; D.G. Hinks; K.E. Gray

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 241 KB
• Volume: 460-462
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/j.physc.2007.03.322

✦ Synopsis

The interlayer tunneling spectroscopy has been performed on micron-sized mesa arrays of HgBr 2 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.