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

Autor: Kashiwaya, Hiromi, Matsumoto, Tetsuro, Shibata, Hajime, Eisaki, Hiroshi, Yoshida, Yoshiyuki, Kambara, Hiroshi, Kawabata, Shiro, Kashiwaya, Satoshi
Rok vydání: 2010
Předmět:
Zdroj: Appl. Phys. Express 3 (2010) 043101
Druh dokumentu: Working Paper
DOI: 10.1143/APEX.3.043101
Popis: 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$_{6+\delta}$ 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.
Databáze: arXiv