scholarly journals High dynamic resistance elements based on Josephson junction array

2019 ◽  
Author(s):  
Konstantin Arutyunov ◽  
Janne Samuel Lehtinen
Keyword(s):  
Coulomb Blockade ◽  
Zero Magnetic Field ◽  
Dynamic Resistance ◽  
Phase Slip ◽  
Bloch Oscillations ◽  
Quantum Phase Slip ◽  
Josephson Junction Array ◽  
Junction Array ◽  
High Dynamic ◽  
Lift Off

Chain of superconductor-insulator-superconductor junctions based on Al-AlO x -Al... lift-off fabricated nanostructures was measured at ultra-low temperatures. At zero magnetic field the low current bias dynamic resistance can reach values ~1011 W.  The system has been proved to provide a decent quality current biasing circuit enabling observation of Coulomb blockade and Bloch oscillations in ultra-narrow Ti nanowires associated with quantum phase slip effect.

scholarly journals High dynamic resistance elements based on a Josephson junction array

2020 ◽  
Vol 11 ◽  
pp. 417-420
Author(s):  
Konstantin Yu Arutyunov ◽  
Janne Samuel Lehtinen
Keyword(s):  
Coulomb Blockade ◽  
Zero Magnetic Field ◽  
Dynamic Resistance ◽  
Bloch Oscillations ◽  
Quantum Phase Slip ◽  
Josephson Junction Array ◽  
Junction Array ◽  
High Dynamic ◽  
Lift Off ◽  
A Chain

A chain of superconductor–insulator–superconductor junctions based on Al–AlO x –Al nanostructures and fabricated using conventional lift-off lithography techniques was measured at ultra-low temperatures. At zero magnetic field, the low current bias dynamic resistance can reach values of ≈1011 Ω. It was demonstrated that the system can provide a decent quality current biasing circuit, enabling the observation of Coulomb blockade and Bloch oscillations in ultra-narrow Ti nanowires associated with the quantum phase-slip effect.

scholarly journals Duality between coherent quantum phase-slip and the Josephson junction in nanowires by dual Hamiltonian method

2019 ◽  
Vol 33 (25) ◽  
pp. 1950291
Author(s):  
M. Yoneda ◽  
M. Niwa ◽  
N. Hirata ◽  
M. Motohashi
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Josephson Junction ◽  
Quantum Phase ◽  
Quantum Field ◽  
Phase Slip ◽  
Hamiltonian Method ◽  
Single Junction ◽  
Quantum Phase Slip ◽  
Coherent Quantum

A method was devised to construct a generalized dual field theory with a quantum field theory named the dual Hamiltonian (DH) method. As a simple example using this method, we examined the duality between coherent quantum phase-slip and Josephson junction (JJ) in single junction systems and nanowires. This method was proved to be reliable within the Villain approximation.

Dissipation-Driven Superconductor-Insulator Transition in a Two-Dimensional Josephson-Junction Array

1997 ◽  
Vol 78 (13) ◽  
pp. 2632-2635 ◽  
Author(s):  
A. J. Rimberg ◽  
T. R. Ho ◽  
Ç. Kurdak ◽  
John Clarke ◽  
K. L. Campman ◽  
...  
Keyword(s):  
Josephson Junction ◽  
Insulator Transition ◽  
Two Dimensional ◽  
Josephson Junction Array ◽  
Junction Array ◽  
Superconductor Insulator Transition

scholarly journals Emergence of Quantum Phase-Slip Behaviour in Superconducting NbN Nanowires: DC Electrical Transport and Fabrication Technologies

Nanomaterials ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 442 ◽  
Author(s):  
Nicolas Constantino ◽  
Muhammad Anwar ◽  
Oscar Kennedy ◽  
Manyu Dang ◽  
Paul Warburton ◽  
...  
Keyword(s):  
Electrical Transport ◽  
Quantum Phase ◽  
Phase Slip ◽  
Quantum Phase Slip

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.

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