Abstract
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.
| Original language | English (US) |
|---|---|
| Article number | 180402 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 79 |
| Issue number | 18 |
| DOIs | |
| State | Published - May 1 2009 |