Results 21 to 30 of about 6,016 (192)
γ Irradiation of Bulk MgB2 Superconductor
Journal of Superconductivity and Novel Magnetism, 2013 Current–voltage (I–V) characteristics of MgB2 bulk sintered superconductor, prepared from the commercially available powder (Alfa-Aesar), have been investigated before and after several γ irradiations up to 5000 MR. A minor increase in the normal state resistance of the sample was observed up to 5000 MR without any change in its critical temperature (T
Kayed, Tarek S. +2 more
openaire +1 more source
Type-1.5 Superconductors [PDF]
, 2009 We demonstrate the existence of a novel superconducting state in high quality two-component MgB2 single crystalline superconductors where a unique combination of both type-1 (kappa_1 0.707) superconductor conditions is realized for the two components of
A. V. Silhanek +10 more
core +1 more source
Open Ceramics, 2023 High density samples (92–94.5 %) of MgB2 were prepared by Spark Plasma Sintering (SPS). The on-off pulsed current patterns of SPS processing were 8–4, 12–2, 24–2, 99–1. Patterns with more on pulses favor formation of a higher amount of the secondary MgB4
G. Aldica +6 more
doaj +1 more source
AIP Advances, 2018 Point contact spectroscopy is commonly used to investigate electronic properties of superconductors. Here we show that nanometer scale point contacts, which enable to study the superconductor properties locally, can be created by means of the resistive ...
Mária Dvoranová +9 more
doaj +1 more source
Applied Computational Intelligence and Soft Computing, 2016 Doping and fabrication conditions bring about disorder in MgB2 superconductor and further influence its room temperature resistivity as well as its superconducting transition temperature (TC).
Taoreed O. Owolabi +2 more
doaj +1 more source
Doping-Induced Isotopic Mg11B2 Bulk Superconductor for Fusion Application
Energies, 2017 Superconducting wires are widely used for fabricating magnetic coils in fusion reactors. Superconducting magnet system represents a key determinant of the thermal efficiency and the construction/operating costs of such a reactor.
Qi Cai +19 more
doaj +1 more source
Permanent magnet with MgB2 bulk superconductor [PDF]
Applied Physics Letters, 2014 Superconductors with persistent zero-resistance currents serve as permanent magnets for high-field applications requiring a strong and stable magnetic field, such as magnetic resonance imaging. The recent global helium shortage has quickened research into high-temperature superconductors (HTSs)—materials that can be used without conventional liquid ...
Yamamoto, A. +3 more
openaire +2 more sources
Proximity effect in normal metal-multiband superconductor hybrid structures [PDF]
, 2004 A theory of the proximity effect in normal metal¿multiband superconductor hybrid structures is formulated within the quasiclassical Green's function formalism.
Brinkman, A. +2 more
core +4 more sources
Fabrication and characterization of superconducting MgB2 thin film on graphene
AIP Advances, 2018 The building of superconductor/graphene hybrid structure has attracted a lot of attention in recent years as it provides an exciting platform to study the novel superconducting proximity effect in graphene and has promise in potential device applications.
Shu-Han Cheng +5 more
doaj +1 more source
AIP Advances, 2016 A new type of rotary coolers based on the temperature change (ΔTrot) of an anisotropic superconductor when rotated in a constant magnetic field is proposed.
Manh-Huong Phan, David Mandrus
doaj +1 more source