中国物理B ›› 2004, Vol. 13 ›› Issue (4): 538-541.doi: 10.1088/1009-1963/13/4/022
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
汪友梅, 曹义刚, 焦正宽
Wang You-Mei (汪友梅), Cao Yi-Gang (曹义刚), Jiao Zheng-Kuan (焦正宽)
摘要: Using random pinning force simulations, we study numerically the alternating current (ac) response of the driven disordered vortex lattice. In the presence of a superimposed ac force, mode-locking steps are observed in the velocity-direct current (dc) force characteristics at high dc forces, where a smectic order occurs. The step width shows damped oscillations with the strength of interaction between vortices, in good agreement with recent experiments.
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