Temperature dependence of microwave voltage emission associated to spin-transfer induced vortex oscillation in magnetic tunnel junction
arXiv:1112.2643 · doi:10.1063/1.3680091
Abstract
The temperature dependence of a vortex-based nano-oscillator induced by spin transfer torque (STVO) in magnetic tunnel junctions (MTJ) is considered. We obtain emitted signals with large output power and good signal coherence. Due to the reduced non-linearities compared to the uniform magnetization case, we first observe a linear decrease of linewidth with decreasing temperature. However, this expected behavior no longer applies at lower temperature and a bottom limit of the linewidth is measured.
submitted to APL
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Cited by in corpus (8)
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- Dynamical mode coupling and coherence in spin Hall nano-oscillator with perpendicular magnetic anisotropy
- Temperature dependence of the emission linewidth in MgO-based spin torque nano-oscillators
- Designing large arrays of interacting spin-torque nano-oscillators for microwave information processing
- Spin orbit torque nano-oscillators by dipole field-localized spin wave modes