Quantum fluctuations in a current-biased Josephson junction of small capacitance

1989 ◽  
Vol 40 (16) ◽  
pp. 10901-10916 ◽  
Author(s):  
A. Tagliacozzo ◽  
F. Ventriglia ◽  
P. Apell
2021 ◽  
Vol 103 (9) ◽  
Author(s):  
D. O. Oriekhov ◽  
Y. Cheipesh ◽  
C. W. J. Beenakker

Author(s):  
Toktar Belgibayev ◽  
Yury Shukrinov ◽  
Andrej Plecenik ◽  
Jiri Pechousek ◽  
Cestmir Burdik

Abstract We have investigated the dynamics of magnetization under a current pulse in a φ0 - junction with a direct coupling between the magnetic moment and the superconducting current. The correspondence between the magnetization value at the end of the pulse mz * and the realization of the magnetization reversal along the easy axis of the ferromagnetic is considered. The crucial influence of the ratio w of the ferromagnetic frequency to the characteristic frequency of the Josephson junction on the results of reversal predictions is demonstrated. Effect of w magnitude on the manifestation of periodicity bands in the mz * dependence on the model parameters is shown. There is a critical value of the Gilbert damping, above which the magnetization reversal is not realized. It is shown that at small w the magnitude mz * can be as a criterion of magnetization reversal. I.e., if mz * <0, the magnetization reversal would happen with 100 percent probability. The results can be used in various areas of superconducting spintronics, in particular, to create a memory element based on the Josephson $ {\varphi_0} $ junction


1990 ◽  
Vol 41 (16) ◽  
pp. 11615-11618 ◽  
Author(s):  
Jayanta K. Bhattacharjee ◽  
Richard A. Ferrell ◽  
Behzad Mirhashem

2015 ◽  
Vol 32 (4) ◽  
pp. 047402 ◽  
Author(s):  
Ji-Quan Zhai ◽  
Yong-Chao Li ◽  
Jian-Xin Shi ◽  
Yu Zhou ◽  
Xiao-Hu Li ◽  
...  

2007 ◽  
Vol 90 (14) ◽  
pp. 142512 ◽  
Author(s):  
D.-X. Chen ◽  
E. Pardo ◽  
A. Sanchez

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