Temperature dependence of nonlinear auto-oscillator linewidths: Application to spin-torque nano-oscillators

Details Temperature dependence of nonlinear auto-oscillator linewidths: Application to spin-torque nano-oscillators Temperature dependence of nonlinear auto-oscillator linewidths: Application to spin-torque nano-oscillators

2008-06-25

arxiv.org/abs/0806.4116v1

Physics

Condensed Matter

Materials Science

4 pages, 1 figure

Scientific paper

10.1103/PhysRevB.78.092401

The temperature dependence of the generation linewidth for an auto-oscillator with a nonlinear frequency shift is calculated. It is shown that the frequency nonlinearity creates a finite correlation time, tau, for the phase fluctuations. In the low-temperature limit in which the spectral linewidth is smaller than 1/tau, the line shape is approximately Lorentzian and the linewidth is linear in temperature. In the opposite high-temperature limit in which the linewidth is larger than 1/tau, the nonlinearity leads to an apparent "inhomogeneous broadening" of the line, which becomes Gaussian in shape and has a square-root dependence on temperature. The results are illustrated for the spin-torque nano-oscillator.

Affiliated with

Also associated with

No associations

Rating

Temperature dependence of nonlinear auto-oscillator linewidths: Application to spin-torque nano-oscillators does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Temperature dependence of nonlinear auto-oscillator linewidths: Application to spin-torque nano-oscillators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature dependence of nonlinear auto-oscillator linewidths: Application to spin-torque nano-oscillators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-162846