scholarly journals XXIII Международный симпозиум Нанофизика и наноэлектроника", Нижний Новгород, 11-14 марта 2019 г. Pежимы колебаний в одномерной цепочке джозефсоновских контактов с нелокальной запаздывающей связью

2019 ◽  
Vol 89 (11) ◽  
pp. 1639
Author(s):  
М.А. Галин ◽  
В.В. Курин
Keyword(s):  
High Frequency ◽  
Electromagnetic Coupling ◽  
Wave Regime ◽  
One Dimensional ◽  
Current Voltage ◽  
Josephson Junction Array ◽  
Reverse Branch ◽  
Junction Array ◽  
The One ◽  
Dimensional Series

We performed the numerical investigation of the one-dimensional series Josephson junction array with electromagnetic coupling and taking into account the delay. In general case of nonzero delay the equations for fast and slow phases have been obtained in the high-frequency (HF) approximation. The regimes of oscillations of the junction array have been studied at the different position on the current-voltage characteristic (IVC), including on its reverse branch. The same investigation has been performed for the systems of equations without delay of interaction and for the arbitrary bias current. Several stationary regimes of oscillations have been observed: synchronous oscillations, regime of traveling wave, regime of partial transition of junctions to the superconducting state and also chimera states.

scholarly journals Simulated radiation effects in the superinsulating phase of titanium nitride films

2011 ◽  
Vol 26 (3) ◽  
pp. 254-260 ◽  
Author(s):  
Milos Vujisic ◽  
Dusan Matijasevic ◽  
Edin Dolicanin ◽  
Predrag Osmokrovic
Keyword(s):  
Titanium Nitride ◽  
Josephson Junction ◽  
Radiation Effects ◽  
Ion Beam ◽  
Material Structure ◽  
Pair Tunneling ◽  
Current Voltage ◽  
Josephson Junction Array ◽  
Radiation Induced ◽  
Junction Array

This paper investigates possible effects of alpha particle and ion beam irradiation on the properties of the superinsulating phase, recently observed in titanium nitride films, by using numerical simulation of particle transport. Unique physical properties of the superinsulating state are considered by relying on a two-dimensional Josephson junction array as a model of material structure. It is suggested that radiation-induced change of the Josephson junction charging energy would not affect the current-voltage characteristics of the superinsulating film significantly. However, it is theorized that a relapse to an insulating state with thermally activated resistance is possible, due to radiation-induced disruption of the fine-tuned granular structure. The breaking of Cooper pairs caused by incident and displaced ions may also destroy the conditions for a superinsulating phase to exist. Finally, even the energy loss to phonons can influence the superinsulating state, by increasing the effective temperature of the phonon thermostat, thereby reestablishing means for an energy exchange that can support Cooper pair tunneling.

scholarly journals Strongly coupled Josephson-junction array for simulation of frustrated one-dimensional spin models

2012 ◽  
Vol 86 (3) ◽  
Author(s):  
Liang-Hui Du ◽  
Xingxiang Zhou ◽  
Yong-Jian Han ◽  
Guang-Can Guo ◽  
Zheng-Wei Zhou
Keyword(s):  
Josephson Junction ◽  
Spin Models ◽  
Strongly Coupled ◽  
One Dimensional ◽  
Josephson Junction Array ◽  
Junction Array

THE INFLUENCE OF JOSEPHSON JUNCTIONS ON THE DYNAMICAL CURRENT-VOLTAGE ANOMALIES IN CERAMIC SUPERCONDUCTORS

1994 ◽  
Vol 08 (23) ◽  
pp. 1447-1452
Author(s):  
J. SOSNOWSKI
Keyword(s):  
Magnetic Properties ◽  
High Temperature ◽  
Transport Current ◽  
Ceramic Superconductors ◽  
Current Voltage ◽  
Josephson Junction Array ◽  
Model Predictions ◽  
Junction Array ◽  
Current Voltage Characteristics ◽  
The Magnetic Field

The influence of Josephson junction array on the dynamical current-voltage anomalies and magnetic properties of high temperature ceramic superconductors is analyzed. The influence of vortices penetrating the junction regions on the macroscopic current flowing through the sample is considered. In the case of zero transport current the existence of vortices modifies the magnetic field dependence of the screening currents and such magnetic properties as the shape of magnetization curves. In the case of transport current flow the existence of junctions may lead to a new critical state approach the consequences of which are anomalies of the dynamical current-voltage characteristics. Comparison of the theoretical model predictions with experimental data measured on high temperature ceramics of various composition is made.

Research on One-Dimensional High Frequency Linear Motion Platform

2015 ◽  
Vol 734 ◽  
pp. 332-335
Author(s):  
Fei Wang ◽  
Rong Rong Wu ◽  
Li Qiang Wang ◽  
Si Yuan Wu
Keyword(s):  
High Frequency ◽  
High Speed ◽  
Voice Coil Motor ◽  
Design Solution ◽  
Mechanical Transmission ◽  
Linear Motion ◽  
Motion Platform ◽  
One Dimensional ◽  
The One ◽  
And Control

Precision motion system is driven directly by high frequency linear motion platform, eliminating the adverse effects brought by mechanical transmission, and greatly improving the rapid reaction capability and the control accuracy of feedback system. The linear motion platform is widely used in various types of high-speed, precision machining equipment. In the paper, the one-dimensional linear motion platform is described, and design solution of mechanical part and control system is also introduced, including working principle and structure of voice coil motor, control methods of grating sensors, circuit of grating sensor, drive and control circuit. Displacement control, speed control and output force control of the one-dimensional linear motion control platform can be achieved. So the one-dimensional linear motion platform can be applied in the movement device in high-precision and high-speed.

Josephson Junction Array for the Measurement of High-Frequency Magnetic Fields

2000 ◽  
Vol 39 (Part 2, No. 6A) ◽  
pp. L510-L513 ◽  
Author(s):  
Keiji Enpuku ◽  
Shusaku Ohta ◽  
Atsushi Nakahodo ◽  
Tadashi Minotani
Keyword(s):  
Magnetic Fields ◽  
Josephson Junction ◽  
High Frequency ◽  
Josephson Junction Array ◽  
Junction Array
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