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arXiv 1004.1893cond-mat.supr-con
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Bi-$_2$-Sr $_{1.6}$-La $_{0.4}$-CuO $_{6+δ}$本征约瑟夫森结的多结开关

Multi-Junction Switching in Bi$_2$Sr$_{1.6}$La$_{0.4}$CuO$_{6+δ}$ Intrinsic Josephson Junctions

Hiromi Kashiwaya, Tetsuro Matsumoto, Hajime Shibata, Hiroshi Eisaki, Yoshiyuki Yoshida, Hiroshi Kambara, Shiro Kawabata, Satoshi Kashiwaya

摘要:

研究了多结开关(MJS)的动力学:阵列中的多个本征约瑟夫森结(IJJ)同时切换到有限电压状态。通过改变串联连接到Bi $_2$ Sr $_{1.6}$ La $_{0.4}$ CuO $_{6+δ}$ IJJ阵列的负载电阻,成功地调谐了多开关结($N$)的数量。宏观量子隧穿机制中$N$的逃逸率的独立性表明MJS是一个$successive$开关过程而不是$collective$过程。MJS的起源解释的负载曲线的梯度和准粒子分支的开关电流在电流-电压平面的相对幅度。

英文摘要:

We study the dynamics of multi-junction switching (MJS): several intrinsic Josephson junctions (IJJs) in an array switch to the finite voltage state simultaneously. The number of multi-switching junctions ($N$) was successfully tuned by changing the load resistance serially connected to an Bi$_2$Sr$_{1.6}$La$_{0.4}$CuO$_{6+δ}$ IJJ array. The independence of the escape rates of $N$ in the macroscopic quantum tunneling regime indicates that MJS is a $successive$ switching process rather than a $collective$ process. The origin of MJS is explained by the gradient of a load curve and the relative magnitudes of the switching currents of quasiparticle branches in the current-voltage plane.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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