Dynamical reentrance and geometry imposed quantization effects inNb–AlOx–Nb Josephson junction arrays

FM Araújo-Moreira, S Sergeenkov - Superconductor Science and …, 2008 - iopscience.iop.org
In this paper, we report on different phenomena related to the magnetic properties of
artificially prepared highly ordered (periodic) two-dimensional Josephson junction arrays …

Evidence for resonant scattering of electrons by spin fluctuations in LaNiO3/LaAlO3 heterostructures grown by pulsed laser deposition

S Sergeenkov, L Cichetto, E Longo, FM Araujo-Moreira - JETP letters, 2015 - Springer
We present measurements of resistivity ρ in highly oriented LaNiO 3 films grown on LaAlO 3
substrates by using a pulsed laser deposition technique. The experimental data are found to …

Manifestation of geometric resonance in current dependence of AC susceptibility for unshunted array of Nb–Alx–Nb Josephson junctions

VAG Rivera, S Sergeenkov, E Marega… - Physica C …, 2010 - Elsevier
A pronounced resonance-like structure has been observed in the current dependence of AC
susceptibility for two-dimensional array of unshunted Nb–Alx–Nb Josephson junctions …

Thermal expansion of Josephson junctions as an elastic response to an effective stress field

S Sergeenkov, G Rotoli, G Filatrella… - Physical Review B …, 2007 - APS
By introducing a concept of thermal expansion (TE) of a Josephson junction as an elastic
response to an effective stress field, we studied (both analytically and numerically) the …

Manifestation of π-contacts in magnetic field dependence of I–V characteristics for proximity-type 2D Josephson junction array

VAG Rivera, S Sergeenkov, E Marega… - Physics Letters A, 2009 - Elsevier
Results on the temperature and magnetic field dependence of current–voltage
characteristics (CVC) are presented for SNS-type 2D ordered array of Nb–Cu0. 95Al0. 05 …

Unusually strong coherent response from grain-boundary Josephson network in polycrystalline Pr x Y1 − x Ba2Cu3O7 − δ

VAG Rivera, S Sergeenkov, C Stari, L Cichetto… - JETP letters, 2009 - Springer
By applying a highly sensitive homemade AC susceptibility technique to Pr x Y 1− x Ba 2 Cu
3 O 7− δ polycrystals (with x= 0.0, 0.1, and 0.3), we observed very sharp Fraunhofer type low …

Novel magnetoinductance effects in Josephson junction arrays: A single-plaquette approximation

S Sergeenkov - Physics Letters A, 2008 - Elsevier
Using a single-plaquette approximation, novel magnetoinductance effects in Josephson
junction arrays (JJAs) are predicted, including the appearance of steps in the temperature …

Universal resistance capacitance crossover in current-voltage characteristics for unshunted array of overdamped Nb–AlOx–Nb Josephson junctions

S Sergeenkov, VAG Rivera, E Marega… - Journal of Applied …, 2010 - pubs.aip.org
We report on some unusual behavior of the measured current-voltage characteristics CVC in
artificially prepared two-dimensional unshunted array of overdamped Nb–AlOx–Nb …

Polarization effects induced by a magnetic field in intrinsically granular superconductors

S Sergeenkov - Journal of Experimental and Theoretical Physics, 2005 - Springer
Based on the previously suggested model of nanoscale dislocation-induced Josephson
junctions and their arrays, we study the magnetic-field-induced electric polarization effects in …

Field induced Kosterlitz–Thouless transition in two-dimensional array of Nb–AlOx–Nb Josephson junctions

S Sergeenkov, VAG Rivera, E Marega… - Solid state …, 2011 - Elsevier
We present recent results on the magnetic field dependence of current–voltage
characteristics (CVC) for an artificially prepared two-dimensional array of unshunted Nb–AlO …