Current-induced switching in single ferromagnetic layer nanopillar junctions
arXiv:cond-mat/0511144 · doi:10.1063/1.2195780
Abstract
Current induced magnetization dynamics in asymmetric Cu/Co/Cu single magnetic layer nanopillars has been studied experimentally at room temperature and in low magnetic fields applied perpendicular to the thin film plane. In sub-100 nm junctions produced using a nanostencil process a bistable state with two distinct resistance values is observed. Current sweeps at fixed applied fields reveal hysteretic and abrupt transitions between these two resistance states. The current induced resistance change is 0.5%, a factor of 5 greater than the anisotropic magnetoresistance (AMR) effect. We present an experimentally obtained low field phase diagram of current induced magnetization dynamics in single ferromagnetic layer pillar junctions.
11 pages, 2 figures
References in corpus (16)
- Microwave Oscillations of a Nanomagnet Driven by a Spin-Polarized Current
- Current-driven Magnetization Reversal and Spin Wave Excitations in Co/Cu/Co Pillars
- Direct-Current Induced Dynamics in Co90Fe10/Ni80Fe20 Point Contacts
- Current-Driven Magnetic Excitations in Permalloy-Based Multilayer Nanopillars
- Spin-Transfer Effects in Nanoscale Magnetic Tunnel Junctions
- Excitations of incoherent spin-waves due to spin-transfer torque
- Current-induced spin-wave excitations in a single ferromagnetic layer
- Theory of Current-Induced Magnetization Precession
- Current-induced transverse spin wave instability in a thin nanomagnet
- Current induced magnetization dynamics in current perpendicular to the plane spin valves
- Inflection point in the magnetic field dependence of the ordered moment of URu2Si2 observed by neutron scattering in fields up to 17 T
- Current Induced Excitations in Cu/Co/Cu Single Ferromagnetic Layer Nanopillars
- Reduction of spin transfer by synthetic antiferromagnets
- Current-induced macrospin vs spin-wave excitations in spin valves
- Bipolar High Field Excitations in Co/Cu/Co Nanopillars
- Current induced transverse spin-wave instability in thin ferromagnets: beyond linear stability analysis
Cited by in corpus (4)
- Model for a collimated spin wave beam generated by a single layer, spin torque nanocontact
- Surface Spin-valve Effect
- Current-induced magnetization dynamics in single and double layer magnetic nanopillars grown by molecular beam epitaxy
- Spin Torques in Point Contacts to Exchange-Biased Ferromagnetic Films