Nonlinear Dynamics of an Array of Nano Spin Transfer Oscillators

摘要: The dynamics of a macrospin variable representing homogeneous magnetization the free layer nanospin transfer oscillator (STNO) can be represented by Landau–Lifshitz–Gilbert–Slonczewski (LLGS) equation. This is generalization evolution equation ferromagnetic spin system Heisenberg interaction. STNO fascinating nonlinear exhibiting an interesting bifurcation-chaos scenario depending up on nature applied external magnetic field and current. In order to enhance microwave power generated STNOs, recently it has been suggested consider series parallel arrays STNOs with appropriate couplings so that oscillators get synchronized. We show here possibility obtaining synchronization common periodically varying field. also study mass in phase underlying properties.