TY - JOUR
T1 - Phase locking of spin-torque oscillators by spin-wave interactions
AU - Chen, Xi
AU - Victora, R. H.
PY - 2009/5/1
Y1 - 2009/5/1
N2 - The spin-wave mediated interaction leading to the phase locking of two spin-torque oscillators is studied. The effective coupling parameter is derived and unexpectedly found to exhibit an oscillatory behavior as a function of intercontact distance. The period of the oscillation is shown to equal the wavelength of the spin wave radiated from the contact. As a result, the oscillators will alternate between in-phase and out-of-phase oscillations, corresponding to maximal and minimal output powers. The predictions are confirmed by micromagnetic simulation.
AB - The spin-wave mediated interaction leading to the phase locking of two spin-torque oscillators is studied. The effective coupling parameter is derived and unexpectedly found to exhibit an oscillatory behavior as a function of intercontact distance. The period of the oscillation is shown to equal the wavelength of the spin wave radiated from the contact. As a result, the oscillators will alternate between in-phase and out-of-phase oscillations, corresponding to maximal and minimal output powers. The predictions are confirmed by micromagnetic simulation.
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U2 - 10.1103/PhysRevB.79.180402
DO - 10.1103/PhysRevB.79.180402
M3 - Article
AN - SCOPUS:65649103085
VL - 79
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 1098-0121
IS - 18
M1 - 180402
ER -