Pinned vortex liquid above the critical point of the first-order melting transition: A consequence of pointlike disorder
Pinned vortex liquid above the critical point of the first-order melting transition: A consequence of pointlike disorder
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DOI：
10.1103/physrevlett.80.1070
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发表时间：
1998-02-02
影响因子：
8.6
通讯作者：
Crabtree, GW
中科院分区：
文献类型：
--
作者：
Lopez, D;Krusin-Elbaum, L;Crabtree, GW
本文报道了非孪晶YBa_2Cu_3O_（7-δ）单晶在一级熔化转变临界点（CP）以上的强钉扎纠缠涡旋液体。CP以上，在面内耗散不可检测的地方，csu;is耗散是有限的，这意味着在涡旋切割和复合的存在下，存在大的面内涡旋钉扎。我们证明了CP以上的行为是由点状无序。同样的行为再现在孪生样品与质子诱导的点缺陷。【S0031-9007（97）05237-X】。
We report on a strongly pinned entangled vortex liquid above the critical point (CP) of the first-order melting transition in untwinned YBa2Cu3O7-delta single crystals, Above CP, the c su;is dissipation is finite where the in-plane dissipation is undetectable, implying large in-plane vortex pinning in the presence of vortex cutting and recombination. We demonstrate that the behavior above CP is governed by pointlike disorder. The same behavior is reproduced in twinned samples with proton-induced point defects. [S0031-9007(97)05237-X].