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

TiO2@CdSe/CdS core–shell hollow nanospheres solar paint

RSC Advances ◽  
2014 ◽  
Vol 4 (59) ◽  
pp. 31313-31317 ◽  
Author(s):  
Xiang Zhang ◽  
Hongxia Sun ◽  
Xiyun Tao ◽  
Xingfu Zhou
Keyword(s):  
Solar Cell ◽  
Quantum Dot ◽  
Conversion Efficiency ◽  
Current Density ◽  
Core Shell ◽  
Hollow Nanospheres ◽  
A Current

TiO2@CdSe/CdS hollow nanospheres solar paint were fabricated and directly applied in quantum dot-sensitized solar cell. The reliable conversion efficiency of 0.79 was achieved with a current density of 6.6 mA cm−2.

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