Dynamical melting and mode locking of vortex matter in 2H-NbSe2 pure single crystals
作者： N. Kokubo , K. Kadowaki , K. Takita
DOI: 10.1016/J.PHYSC.2005.12.049
关键词: Mode-locking 、 Excited state 、 Dc drive 、 Condensed matter physics 、 Peak effect 、 Vortex 、 Lattice (order) 、 Flow properties 、 Physics
摘要: Abstract We have investigated flow properties of vortex matter around the peak effect region in 2H-NbSe 2 pure single crystals by mode locking (ML) techniques. ML is a dynamic synchronization phenomenon between ac drive superimposed on dc and collective lattice modes excited over driven lattice. Around regime, we observe vanishing resonance, which velocity dependent: At small velocity, vanishes just below field H p for effect, while at large it above . The dependence agrees qualitatively with dynamical melting picture proposed Koshelev Vinokur.
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