Studies of return maps, chaos, and phase-locked states in a current-driven Josephson-junction simulator

1985 ◽  
Vol 31 (3) ◽  
pp. 1359-1373 ◽  
Author(s):  
Da-Ren He ◽  
W. J. Yeh ◽  
Y. H. Kao
Keyword(s):  
Josephson Junction ◽  
Return Maps ◽  
A Current

scholarly journals Voltage staircase in a current-biased quantum-dot Josephson junction

2021 ◽  
Vol 103 (9) ◽  
Author(s):  
D. O. Oriekhov ◽  
Y. Cheipesh ◽  
C. W. J. Beenakker
Keyword(s):  
Quantum Dot ◽  
Josephson Junction ◽  
A Current

Peculiarities of magnetic moment switching in the φ(0) junction

2021 ◽  
Author(s):  
Toktar Belgibayev ◽  
Yury Shukrinov ◽  
Andrej Plecenik ◽  
Jiri Pechousek ◽  
Cestmir Burdik
Keyword(s):  
Josephson Junction ◽  
Magnetic Moment ◽  
Magnetization Reversal ◽  
Characteristic Frequency ◽  
Easy Axis ◽  
Critical Value ◽  
Model Parameters ◽  
Memory Element ◽  
Superconducting Current ◽  
A Current

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

Dependence of Switching Current Distribution of a Current-Biased Josephson Junction on Microwave Frequency

2015 ◽  
Vol 32 (4) ◽  
pp. 047402 ◽  
Author(s):  
Ji-Quan Zhai ◽  
Yong-Chao Li ◽  
Jian-Xin Shi ◽  
Yu Zhou ◽  
Xiao-Hu Li ◽  
...  
Keyword(s):  
Josephson Junction ◽  
Current Distribution ◽  
Microwave Frequency ◽  
Switching Current ◽  
A Current

Forces acting on a current-driven moving vortex in a long Josephson junction

2007 ◽  
Vol 90 (14) ◽  
pp. 142512 ◽  
Author(s):  
D.-X. Chen ◽  
E. Pardo ◽  
A. Sanchez
Keyword(s):  
Josephson Junction ◽  
A Current ◽  
Moving Vortex

scholarly journals Decoupling of a current-biased intrinsic Josephson junction from its environment

2003 ◽  
Vol 67 (18) ◽  
Author(s):  
P. A. Warburton ◽  
A. R. Kuzhakhmetov ◽  
G. Burnell ◽  
M. G. Blamire ◽  
H. Schneidewind
Keyword(s):  
Josephson Junction ◽  
Intrinsic Josephson Junction ◽  
A Current

The Quantuam Melting Transitions with the Magnetic Field in Weakly Disordered Josephson Junction Arrays

2013 ◽  
Vol 380-384 ◽  
pp. 4845-4848
Author(s):  
Zhi Gang Zhao ◽  
Cun Li Dai ◽  
Lun Wu Zeng
Keyword(s):  
Magnetic Field ◽  
Josephson Junction ◽  
Vortex System ◽  
Josephson Junction Arrays ◽  
Melting Transitions ◽  
Dynamic Melting ◽  
Junction Arrays ◽  
The Magnetic Field ◽  
A Current ◽  
Moving Vortex

Using the resistively shunted junction model, we study the magnetic field induced dynamic melting transitions of a current-driven vortex system in two-dimensional weakly disordered Josephson junction arrays at zero temperature. From the unified model simulations, we find that the intrinsic quantum vortex liquid (QVL) phenomenon, which consistent with the recent experimental reports in disordered and superconducting MoGe films. The enhancement of critical current in the QVL phase arises from intrinsic quantum fluctuations in the moving vortex flow.

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