Dynamic melting of confined vortex matter.
Dynamic melting of confined vortex matter.
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受限涡旋物质的动态熔化。
DOI：
10.1103/physrevlett.91.177002
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发表时间：
2003
影响因子：
8.6
通讯作者：
P. Kes
中科院分区：
文献类型：
--
作者：
R. Besseling;N. Kokubo;P. Kes
通过锁模实验研究了在无序介观通道中运动的受限涡旋物质的动态熔化。以锁模效应崩溃为特征的动态熔化转变强烈依赖于频率，即涡旋的平均速度。在接近平衡熔化线T(m,e)(B)时，相关的动态有序速度发散为v(c)近似于（T(m,e)-T）（-1）。这些数据为速度相关熔化提供了第一个直接证据，并表明这种现象也发生在无序约束的系统中。
We study dynamic melting of confined vortex matter moving in disordered, mesoscopic channels by mode-locking experiments. The dynamic melting transition, characterized by a collapse of the mode-locking effect, strongly depends on the frequency, i.e., on the average velocity of the vortices. The associated dynamic ordering velocity diverges upon approaching the equilibrium melting line T(m,e)(B) as v(c) approximately (T(m,e)-T)(-1). The data provide the first direct evidence for velocity dependent melting and show that the phenomenon also takes place in a system under disordered confinement.