Spin-Dependent Tunneling into Ferromagnetic Nickel

Spin-Dependent Tunneling into Ferromagnetic Nickel

Tunneling measurements on junctions between very thin superconducting aluminum films and ferromagnetic nickel films in a high magnetic field show that the tunneling current is spin dependent. The effective tunneling density of states in Ni determined by this means implies a polarization of the magne...

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Veröffentlicht in:Phys. Rev. Lett.; (United States) 1971-01, Vol.26 (4), p.192-195
Hauptverfasser: Tedrow, P. M., Meservey, R.
Format: Artikel
Sprache:eng
Schlagworte:
656102 > Solid State Physics-- Superconductivity-- Acoustic, Electronic, Magnetic, Optical, & Thermal Phenomena-- (-1987)
ALUMINIUM
ANGULAR MOMENTUM
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
FERROMAGNETIC MATERIALS
MAGNETIC FIELDS
MAGNETIC MATERIALS
MAGNETIC MOMENTS
MATERIALS
MATERIALS SCIENCE
METALS
NICKEL
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
POLARIZATION
SPIN
SUPERCONDUCTING FILMS
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTIVITY
TRANSITION ELEMENTS 360104 > Metals & Alloys-- Physical Properties
TUNNEL EFFECT
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Beschreibung
Zusammenfassung:Tunneling measurements on junctions between very thin superconducting aluminum films and ferromagnetic nickel films in a high magnetic field show that the tunneling current is spin dependent. The effective tunneling density of states in Ni determined by this means implies a polarization of the magnetic moments of the Ni current carriers parallel to the applied field. The technique offers a new method for investigating spin-dependent states in magnetic materials.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.26.192