The dependence of the linewidth on the temperature in a spin valve driven by spin-polarized currents is analyzed by means of full micromagnetic simulations. The results are compared to the recent analytical predictions by Tiberkevic et al. and confirmed by the experiments of Boone et al. In agreement with the Tiberkevic theory and experiments of Sankey et al., our micromagnetic results point out two regimes. The linewidth increases linearly with the temperature until a threshold value, above which a square root dependence is observed.
Temperature Dependence of Microwave Nano-Oscillator Linewidths Driven by Spin-Polarized Currents: A Micromagnetic Analysis / Carpentieri, Mario; Torres, L; Martinez, E.. - In: IEEE TRANSACTIONS ON MAGNETICS. - ISSN 0018-9464. - 45:10(2009), pp. 3426-3429. [10.1109/TMAG.2009.2023921]
Temperature Dependence of Microwave Nano-Oscillator Linewidths Driven by Spin-Polarized Currents: A Micromagnetic Analysis
CARPENTIERI, Mario;
2009-01-01
Abstract
The dependence of the linewidth on the temperature in a spin valve driven by spin-polarized currents is analyzed by means of full micromagnetic simulations. The results are compared to the recent analytical predictions by Tiberkevic et al. and confirmed by the experiments of Boone et al. In agreement with the Tiberkevic theory and experiments of Sankey et al., our micromagnetic results point out two regimes. The linewidth increases linearly with the temperature until a threshold value, above which a square root dependence is observed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
