Spectral purity and phase coherence of narrow-band noise in NbSe3
作者： M. Weger , G. Grüner , W.G. Clark
DOI: 10.1016/0038-1098(82)91080-8
关键词: Sawtooth wave 、 Phase (waves) 、 Harmonics 、 Relaxation oscillator 、 Noise (electronics) 、 Charge density wave 、 Spectral purity 、 Phase noise 、 Optics 、 Computational physics 、 Physics
摘要: Abstract An unusually simple narrow band noise spectrum with a single fundamental and seven harmonics due to depinned charge density wave motion in NbSe3 is reported. The simplicity of the attributed very uniform current distribution associated short, thin sample high perfection. near that sawtooth waveform generated by relaxation oscillator. As indicated amplitude ratio first harmonic, this has only moderate variation over three orders magnitude frequency. electrical oscillator analog which reproduces most properties CDW discussed. A search for phase memory showed it be less than one period.
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