摘要翻译:
从理论上研究了利用磁力显微镜从扩展缺陷中解压缩涡旋线的问题。我们研究了孤立涡旋与普通缺陷如柱钉和双平面的解压缩,以及在有其他涡旋存在的情况下涡旋与平面的解压缩。我们用解析和数值方法证明了在无序存在和不存在的情况下,单个涡旋解压缩跃迁的普适性质仅依赖于缺陷的维数。在二维平面上,涡的解压缩对涡的性质非常敏感。特别地,这种解压缩实验可以用来测量平面内涡旋的“Luttinger液体参数”。此外,我们还提出了一种利用实验直接测量涡流线张力的方法。
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英文标题:
《Unzipping Vortices in Type-II Superconductors》
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作者:
Yariv Kafri, David R. Nelson, Anatoli Polkovnikov
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最新提交年份:
2007
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分类信息:
一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
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一级分类:Physics 物理学
二级分类:Soft Condensed Matter 软凝聚态物质
分类描述:Membranes, polymers, liquid crystals, glasses, colloids, granular matter
膜,聚合物,液晶,玻璃,胶体,颗粒物质
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一级分类:Physics 物理学
二级分类:Superconductivity 超导电性
分类描述:Superconductivity: theory, models, experiment. Superflow in helium
超导:理论,模型,实验。氦中超流
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英文摘要:
The unzipping of vortex lines using magnetic-force microscopy from extended defects is studied theoretically. We study both the unzipping isolated vortex from common defects, such as columnar pins and twin-planes, and the unzipping of a vortex from a plane in the presence of other vortices. We show, using analytic and numerical methods, that the universal properties of the unzipping transition of a single vortex depend only on the dimensionality of the defect in the presence and absence of disorder. For the unzipping of a vortex from a plane populated with many vortices is shown to be very sensitive to the properties of the vortices in the two-dimensional plane. In particular such unzipping experiments can be used to measure the ``Luttinger liquid parameter'' of the vortices in the plane. In addition we suggest a method for measuring the line tension of the vortex directly using the experiments.
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PDF链接:
https://arxiv.org/pdf/706.2684