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تسجيل مستخدم جديدExperimental Study of Dust Acoustic Waves in the Strongly Correlated Regime
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Low frequency dust acoustic waves (DAW) were excited in a laboratory argon dusty plasma by modulating the discharge voltage with a low frequency AC signal. Metallic graphite particles were used as dust grains and a digital FFT technique was used to obtain dispersion characteristics. The experimental dispersion relation shows the reduction of phase velocity and a regime where $partial omega/partial k < 0$. A comparison is made with existing theoretical model.
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D. I. Zhukhovitskii (Joint Institute for High Temperatures
, Russiann Academy of Sciences
, Moscow
2015
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