Template-grown NiFe/Cu/NiFe nanowires for spin transfer devices.
We have developed a new reliable method combining template synthesis and nanolithography-based contacting technique to elaborate current perpendicular-to-plane giant magnetoresistance spin valve nanowires, which are very promising for the exploration of electrical spin transfer phenomena. The method allows the electrical connection of one single nanowire in a large assembly of wires embedded in anodic porous alumina supported on Si substrate with diameters and periodicities to be controllable to a large extent. Both magnetic excitations and switching phenomena driven by a spin-polarized current were clearly demonstrated in our electrodeposited NiFe/Cu/ NiFe trilayer nanowires. This novel approach promises to be of strong interest for subsequent fabrication of phase-locked arrays of spin transfer nano-oscillators with increased output power for microwave applications.
Piraux
Luc
L
Unité de Physico-Chimie et de Physique des Matériaux, Place Croix du Sud, 1, 1348-Louvain-la-Neuve, Belgium. piraux@pcpm.ucl.ac.be
Renard
Krystel
K
Guillemet
Raphael
R
Matéfi-Tempfli
Stefan
S
Matéfi-Tempfli
Maria
M
Antohe
Vlad Andrei
VA
Fusil
Stéphane
S
Bouzehouane
Karim
K
Cros
Vincent
V
D003300:Copper / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D007501:Iron / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods; D043942:Nanotubes / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry*; D010316:Particle Size; D013113:Spin Labels; D013499:Surface Properties
D046911:Macromolecular Substances; D013113:Spin Labels; D003300:Copper; D009532:Nickel; D007501:Iron