Spin-polarized tunneling and spin injection in superconductor-ferromagnet junctions

Sadamichi Maekawa, Saburo Takahashi, Hiroshi Imamura

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We present non-equilibrium phenomena in ferromagnet/superconductor/ferromagnet tunnel junctions. In the junctions, spin polarization induced by the spin-polarized tunneling competes with the superconductivity. As a result, a variety of non-linear superconducting and magnetoresistive phenomena are expected. The superconducting critical current observed experimentally in ferromagnetic manganite/high-Tc superconductor tunnel junctions is analyzed. We also discuss the spin current backflow accompanied by the Josephson current caused by the spin injection.

Original languageEnglish
Pages (from-to)44-48
Number of pages5
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Issue number1-2
Publication statusPublished - 2001 Jun 5
Externally publishedYes


  • Josephson current
  • Spin accumulation
  • Spin current
  • Spin injection
  • Superconductivity

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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