Fluctuating pancake vortices revealed by dissipation of the Josephson vortex lattice

A. E. Koshelev; A. I. Buzdin; I. Kakeya; T. Yamamoto; K. Kadowaki

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Fluctuating pancake vortices revealed by dissipation of the Josephson vortex lattice

机译：约瑟夫森涡流晶格消散揭示出波动的煎饼旋涡

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In strongly anisotropic layered superconductors in tilted magnetic fields, the Josephson vortex lattice coexists with the lattice of pancake vortices. Due to the interaction between them, the dissipation of the Josephson vortex lattice is very sensitive to the presence of the pancake vortices. If the c-axis magnetic field is smaller than the corresponding lower critical field, the pancake stacks are not formed but the individual pancakes may exist in the fluctuational regime either near the surface in large-size samples or in the central region for small-size mesas. We calculate the contribution of such fluctuating pancake vortices to the c-axis conductivity of the Josephson vortex lattice and compare the theoretical results with measurements on small mesas fabricated out of Bi_2Sr_2CaCu_2O_(8+δ) crystals. A fingerprint of fluctuating pancakes is a characteristic exponential dependence of the c-axis conductivity observed experimentally. Our results provide strong evidence of the existence of the fluctuating pancakes and their influence on the Josephson vortex lattice dissipation.

机译：在倾斜磁场中的强各向异性层状超导体中，约瑟夫森涡旋晶格与薄煎饼涡旋晶格共存。由于它们之间的相互作用，约瑟夫森涡流晶格的耗散对薄煎饼涡流的存在非常敏感。如果c轴磁场小于相应的下临界磁场，则不会形成煎饼堆，但是单个煎饼可能以波动形式存在于大尺寸样品的表面附近或小尺寸的中心区域台面我们计算了这种波动的煎饼涡流对约瑟夫森涡流晶格的c轴电导率的贡献，并将理论结果与由Bi_2Sr_2CaCu_2O_（8 +δ）晶体制成的小型台面的测量结果进行了比较。波动的煎饼的指纹是实验观察到的c轴电导率的特征指数依赖性。我们的结果为波动煎饼的存在及其对约瑟夫森涡流晶格耗散的影响提供了有力证据。

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来源
《Physical review》 |2011年第22期|p.224515.1-224515.11|共11页
作者
A. E. Koshelev; A. I. Buzdin; I. Kakeya; T. Yamamoto; K. Kadowaki;
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作者单位

Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA;

Institut Universite de France and Universite de Bordeaux, LOMA, UMR 5798, F-33405 Talence, France;

Department of Electronic Science and Engineering, Kyoto University, Nishikyo, Kyoto 615-8510, Japan;

Institute of Materials Science, University ofTsukuba, Tsukuba, Ibaraki 305-8573, Japan;

Institute of Materials Science, University ofTsukuba, Tsukuba, Ibaraki 305-8573, Japan;

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正文语种 eng
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tunneling phenomena; point contacts, weak links, josephson effects; phenomenological theories (two-fluid, ginzburg-landau, etc.);

机译：隧道现象;点接触;薄弱环节;约瑟夫森效应;现象学理论（双流体;金茨堡-朗道等）;

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专利

1. Tuning the structure of the Josephson vortex lattice in Bi 2 Sr 2 CaCu 2 O 8+δ single crystals with pancake vortices [J] . P. J. Curran, H. A. Mohammed, S. J. Bending, Scientific reports. . 2018,第1期

机译：用煎饼涡流调节BI 2 SR 2 CACU 2 O 8 +δ单晶的Josephson Vortex格子的结构
2. Manipulation of pancake vortices by rotating a Josephson vortex lattice [J] . Crisan A, Bending SJ, Tamegai T Superconductor Science & Technology . 2008,第1期

机译：通过旋转约瑟夫森涡流晶格来操纵煎饼涡流
3. Slowing down the Josephson vortex lattice in Bi_2Sr_2CaCu_2O_(8+δ) with pancake vortices [J] . A. E. Koshelev, Yu. I. Latyshev, M. Konczykowski Physical review. B, Condensed Matter And Materials Physics . 2006,第10期

机译：用薄煎饼涡旋减慢Bi_2Sr_2CaCu_2O_（8 +δ）中的约瑟夫森涡旋晶格
4. Magnetization experiments on the thermal fluctuations of vortices and Cooper pairs in multilayered superconducting cuprates: how strongly coupled are the pancake vortices of the closest layers? [C] . Felix Vidal, Univ. de Santiago de Compostela, Santiago de Compostela, Superconducting and Related Oxides: Physics and Nanoengineering III . 1998

机译：多层超导铜酸盐中涡旋和库珀对的热涨落的磁化实验：最接近的薄层涡旋耦合程度如何？
5. PART I: QUANTUM FLUCTUATIONS IN CHAINS OF JOSEPHSON JUNCTIONS. PART II: DIRECTED AGGREGATION ON THE BETHE LATTICE. [D] . BRADLEY, RICHARD MARK. 1985

机译：第一部分：约瑟夫逊结链中的量子涨落。第二部分：贝特格上的直接聚合。
6. Current driven transition from Abrikosov-Josephson to Josephson-like vortex in mesoscopic lateral S/S’/S superconducting weak links [O] . G. Carapella, P. Sabatino, C. Barone, -1

机译：在介观的横向S / S’/ S超导薄弱环节中由电流驱动的从Abrikosov-Josephson过渡到约瑟夫森状涡
7. Fluctuating pancake vortices revealed by dissipation of the Josephson vortex lattice [O] . Koshelev A. E., Buzdin A. I., Kakeya I., 2011

机译：约瑟夫森涡流晶格消散揭示出波动的煎饼旋涡
8. Quantum fluctuations of vortices in Josephson-coupled superconductors [R] . Bulaevskii, L. N., Maley, M. P. 1994

机译：约瑟夫森耦合超导体中涡流的量子涨落

Fluctuating pancake vortices revealed by dissipation of the Josephson vortex lattice

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