Thin-film Josephson junctions with alternating critical current density

Maayan Moshe; V. G. Kogan; R. G. Mints

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Thin-film Josephson junctions with alternating critical current density

机译：具有交替临界电流密度的薄膜约瑟夫逊结

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We study the field dependence of the maximum current I_m(H) in narrow edge-type thin-fiI_m Josephson junctions with alternating critical current density. I_m(H) is evaluated within nonlocal Josephson electrodynamics taking into account the stray fields that affect the difference of the order-parameter phases across the junction and therefore the tunneling currents. We find that the phase difference along the junction is proportional to the applied field, depends on the junction geometry, but is independent of the Josephson critical current density g_c, i.e., it is universal. An explicit form for this universal function is derived for small currents through junctions of the width W

机译：我们研究了具有临界电流密度变化的窄边型薄fiI_m Josephson结中最大电流I_m（H）的场依存性。在非局部约瑟夫森电动力学中评估I_m（H）时要考虑杂散场，这些杂散场会影响跨结的阶次参数相位的差异，从而影响隧道电流。我们发现，沿结的相位差与施加的电场成比例，取决于结的几何形状，但与约瑟夫森临界电流密度g_c无关，即，它是通用的。对于通用电流的明确形式，是通过宽度W

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来源
《Physical review》 |2009年第4期|024505.1-024505.7|共7页
作者
Maayan Moshe; V. G. Kogan; R. G. Mints;
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作者单位

The Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel;

Department of Physics and Astronomy and Ames Laboratory-DOE, Iowa State University, Ames, Iowa 50011, USA;

The Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel;

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正文语种 eng
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关键词
tunneling phenomena; point contacts, weak links, josephson effects; cuprate superconductors (high-Tc and insulating parent compounds);

机译：隧道现象;点接触;薄弱环节;约瑟夫森效应;铜酸盐超导体（高Tc和绝缘母体化合物）;

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专利

1. High-field vortices in Josephson junctions with alternating critical current density [J] . Maayan Moshe, R. G. Mints Physical review. B, Condensed Matter And Materials Physics . 2007,第14期

机译：具有交替临界电流密度的约瑟夫森结中的高场涡旋
2. Shapiro steps in Josephson junctions with alternating critical current density [J] . M. Moshe, R. G. Mints Physical review . 2007,第5期

机译：夏皮罗（Shapiro）以临界电流密度交替出现在约瑟夫森结中
3. Maximum supercurrent in Josephson junctions with alternating critical current density [J] . Maayan Moshe, C. W. Schneider, G. Bensky, Physical review. B, Condensed Matter And Materials Physics . 2007,第17期

机译：具有交替临界电流密度的约瑟夫逊结中的最大超电流
4. Fiske steps in Josephson junctions with alternating critical current density [C] . C Nappi, E Sarnelli, M Adamo, European Conference on Applied Superconductivity;EUCAS'05 . 2005

机译：约瑟夫森结中的Fiske阶跃具有交替的临界电流密度
5. Low frequency critical current noise and two level system defects in Josephson junctions. [D] . Nugroho, Christopher Daniel. 2015

机译：约瑟夫逊结中的低频临界电流噪声和二级系统缺陷。
6. Anomalous current–voltage characteristics of SFIFS Josephson junctions with weak ferromagnetic interlayers [O] . Tairzhan Karabassov, Anastasia V Guravova, Aleksei Yu Kuzin, 2020

机译：具有弱铁磁夹层的SFIFS Josephson结的电流-电压异常
7. Maximum supercurrent in Josephson junctions with alternating critical current density [O] . Moshe, Maayan, Schneider, C. W., Bensky, G., 2007

机译：约瑟夫森结中具有交替临界点的最大超电流当前密度

Thin-film Josephson junctions with alternating critical current density

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