Spin-polarized tunneling

作者: Jagadeesh S. Moodera , Robert H. Meservey

DOI: 10.1016/B978-012088487-2/50004-2

关键词: Spin pumpingFermi energyQuantum tunnellingSpin polarized scanning tunneling microscopyScanning tunneling spectroscopySuperconductivityMaterials scienceCondensed matter physicsCoherence lengthSpin polarizationAtomic physics

摘要: Publisher Summary This chapter focuses on spin-polarized tunneling in superconductors and ferromagnetic materials. The superconducting conductance technique is used for measuring the spin polarization of conduction electrons a material very different from 3d metals. Using spin-split film remains most unambiguous method tunnel current metal because long coherence length complete understanding theory experimental spectroscopy. In tunneling, derived imbalance density states spin-up spin-down at Fermi energy. Spin-polarized between ferromagnets show that metals are polarized with degrees characteristic each metal. electrodes extremely sensitive to surface interface properties short state.

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