How to choose the superconducting material law for the modelling of 2G-HTS coils

BC Robert, MU Fareed, HS Ruiz - Materials, 2019 - mdpi.com
In an attempt to unveil the impact of the material law selection on the numerical modelling
and analysis of the electromagnetic properties of superconducting coils, in this paper we …

Crossed-magnetic-field experiments on stacked second generation superconducting tapes: Reduction of the demagnetization effects

M Baghdadi, HS Ruiz, TA Coombs - Applied Physics Letters, 2014 - pubs.aip.org
The crossed-magnetic-field effect on the demagnetization factor of stacked second
generation (2G) high temperature superconducting tapes is presented. The superconducting …

Theory and experiment testing flux-line cutting physics

JR Clem, M Weigand, JH Durrell… - Superconductor …, 2011 - iopscience.iop.org
We discuss predictions of five proposed theories for the critical state of type-II
superconductors accounting for both flux cutting and flux transport (depinning). The theories …

General approach for the determination of the magneto-angular dependence of the critical current of YBCO coated conductors

X Zhang, Z Zhong, HS Ruiz, J Geng… - Superconductor …, 2016 - iopscience.iop.org
The physical understanding and numerical modelling of superconducting devices which
exploit the high performance of second generation high temperature superconducting tapes …

Parallel magnetic field suppresses dissipation in superconducting nanostrips

YL Wang, A Glatz, GJ Kimmel… - Proceedings of the …, 2017 - National Acad Sciences
The motion of Abrikosov vortices in type-II superconductors results in a finite resistance in
the presence of an applied electric current. Elimination or reduction of the resistance via …

Superconducting wire subject to synchronous oscillating excitations: Power dissipation, magnetic response, and low-pass filtering

HS Ruiz, A Badía-Majós, YA Genenko, H Rauh… - Applied Physics …, 2012 - pubs.aip.org
Numerical simulations of a type-II superconducting wire subject to an ac transport current
and oscillating transverse magnetic field are performed using the theory of the critical state …

Modelling current voltage characteristics of practical superconductors

A Badía-Majós, C López - Superconductor Science and …, 2014 - iopscience.iop.org
Based on recent experimental results, and in the light of fundamental physical properties of
the magnetic flux in type-II superconductors, we introduce a practical expression for the …

Maximum reduction of energy losses in multicore MgB2 wires by metastructured soft-ferromagnetic coatings

M Kapolka, HS Ruiz - Scientific Reports, 2022 - nature.com
When compared with rare-earth coated conductors, magnesium diboride superconducting
cables are known to show significant advantages by cost and easy production. However, the …

Electric field and energy losses of rounded superconducting/ferromagnetic heterostructures at self-field conditions

MU Fareed, BC Robert, HS Ruiz - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
The ac losses induced by an alternating transport current in type-II superconductors is a well-
known phenomenon, which still attracts much attention because of its intrinsic relevance for …

Magnetic characteristics and AC losses of DC type-II superconductors under oscillating magnetic fields

BC Robert, HS Ruiz - Superconductor Science and Technology, 2018 - iopscience.iop.org
Remarkable features on the magnetic moment of type-II superconducting (SC) wires of
cylindrical shape, subjected to direct current conditions (DC) and transverse oscillating (AC) …