A review of finite size effects in quasi-zero dimensional superconductors

S Bose, P Ayyub - Reports on Progress in Physics, 2014 - iopscience.iop.org
Quantum confinement and surface effects (SEs) dramatically modify most solid state
phenomena as one approaches the nanometer scale, and superconductivity is no …

Mechanism of the size dependence of the superconducting transition of nanostructured Nb

S Bose, P Raychaudhuri, R Banerjee, P Vasa… - Physical review letters, 2005 - APS
A direct measurement of the superconducting energy gap by point contact spectroscopy in
nanostructured Nb films shows that the gap decreases with a reduction in the average …

Competing effects of surface phonon softening and quantum size effects on the superconducting properties of nanostructured Pb

S Bose, C Galande, SP Chockalingam… - Journal of Physics …, 2009 - iopscience.iop.org
The superconducting transition temperature (TC) in nanostructured Pb decreases from 7.24
to 6.4 K as the particle size is reduced from 65 to 7 nm, below which superconductivity is lost …

Size induced metal–insulator transition in nanostructured niobium thin films: intra-granular and inter-granular contributions

S Bose, R Banerjee, A Genc… - Journal of Physics …, 2006 - iopscience.iop.org
With a reduction in the average grain size in nanostructured films of elemental Nb, we
observe a systematic crossover from metallic to weakly insulating behaviour. An analysis of …

A review of superconductivity in nanostructures—from nanogranular films to anti-dot arrays

S Bose - Superconductor Science and Technology, 2023 - iopscience.iop.org
Superconductivity in small particles has been studied since the early sixties. A large number
of sample geometries for both one component elemental superconductors and dual …

Tailoring phase slip events through magnetic do** in superconductor-ferromagnet composite films

A Bawa, R Jha, S Sahoo - Scientific Reports, 2015 - nature.com
The interplay between superconductivity (SC) and ferromagnetism (FM) when embedded
together has attracted unprecedented research interest due to very rare coexistence of these …

Is there a lower size limit for superconductivity?

S Sarkar, N Kulkarni, R Kulkarni, K Thekkepat… - Nano Letters, 2017 - ACS Publications
The ultimate lower size limit for superconducting order to exist is set by the “Anderson
criterion” arising from quantum confinement that appears to be remarkably accurate and …

Accessing phase slip events in Nb meander wires

D Sawle, S Husale, S Yadav, B Gajar… - Superconductor …, 2021 - iopscience.iop.org
We report transport studies through Nb-based superconducting meander wires fabricated by
focused ion beam milling technique. The effect of meandering on quantum transport has …

Formation of tungsten carbide by focused ion beam process: A route to high magnetic field resilient patterned superconducting nanostructures

H Chakraborti, BP Joshi, CK Barman, AK Jain… - Applied Physics …, 2022 - pubs.aip.org
A scale for magnetic field resilience of a superconductor is set by the paramagnetic limit.
Comparing the condensation energy of the Bardeen–Cooper–Schrieffer (BCS) singlet …

Superconductivity in immiscible Nb–Cu nanocomposite films

P Parab, V Bagwe, B Chalke… - Superconductor …, 2017 - iopscience.iop.org
We report the superconducting properties of immiscible Nb–Cu nanocomposite films with
varying compositions. The microstructure of the films revealed the presence of phase …