期刊
APPLIED PHYSICS LETTERS
卷 94, 期 19, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3133356
关键词
cobalt alloys; copper; iron alloys; nanocontacts; nickel alloys; phase locked loops; phase locked oscillators; phase noise; tantalum
We measure oscillator phase from the zero crossings of the voltage versus time waveform of a spin torque nanocontact oscillating in a vortex mode. The power spectrum of the phase noise varies with Fourier frequency f as 1/f(2), consistent with frequency fluctuations driven by a thermal source. The linewidth implied by phase noise alone is about 70% of that measured using a spectrum analyzer. A phase-locked loop reduces the phase noise for frequencies within its 3 MHz bandwidth.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据