Results 101 to 110 of about 21,457 (258)

Acoustic Phonon Anomaly in MgB2

open access: yes, 2002
4+ pages, 3 figures, RevTeX 4, revised version, accepted to ...
Wood, RF, Sernelius, Bo, Chernyshev, AL
openaire   +3 more sources

Point contact spectroscopy of superconductors via nanometer scale point contacts formed by resistive switching

open access: yesAIP 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

Planar Superconductor-Normal-Superconductor Josephson Junctions in MgB2

open access: yes, 2001
Since the discovery of superconductivity in MgB2 considerable progress has been made in determining the physical properties of the material, which are promising for bulk conductors. Tunneling studies show that the material is reasonably isotropic and has
B. Oh   +8 more
core   +1 more source

DC‐Driven Fractional Flux Quanta in Two‐Band Superconductors

open access: yesphysica status solidi (RRL) – Rapid Research Letters, Volume 19, Issue 12, December 2025.
The dc‐driven distancing of fractional flux quanta is theoretically analyzed for a dual‐band superconductor with a periodic pinning potential. The analysis is based on the dynamical equation of motion for a single composite vortex. The model neglects the phase difference between the condensates and may be applicable to two‐band superconductors with ...
Anton O. Pokusinskyi   +1 more
wiley   +1 more source

Computational Intelligence Approach for Estimating Superconducting Transition Temperature of Disordered MgB2 Superconductors Using Room Temperature Resistivity

open access: yesApplied 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

Properties Of MgB2/Ga Composites Prepared By Mechanical Alloying

open access: yesArchives of Metallurgy and Materials, 2015
In this study, we examined the effect of Ga-doping and mechanical alloying in MgB2 on microstructural and phase evolution. A comparison was made between in-situ and ex-situ processed Mg-B-Ga samples.
Yoon K., Ahn J.-H.
doaj   +1 more source

Increases in the Irreversibility Field and the Upper Critical Field of Bulk MgB2 by ZrB2 Addition

open access: yes, 2005
In a study of the influence of ZrB2 additions on the irreversibility field, Birr and the upper critical field Bc2, bulk samples with 7.5 at. % ZrB2 additions were made by a powder milling and compaction technique.
Bhatia, M.   +3 more
core   +1 more source

Ambient Condition Superconductivity via Engineered Polaronic Environment

open access: yesphysica status solidi (RRL) – Rapid Research Letters, Volume 19, Issue 12, December 2025.
A novel strategy for increasing the critical temperature T c of superconductors is proposed. It involves mating ultrathin layers of superconductors (e.g. MgB2) and metal‐organic framework materials, with a renormalized dielectric response yielding a new system with strengthened Cooper pairing via resonant antishielding.
Krzysztof Kempa, Michael J. Naughton
wiley   +1 more source

Fabrication and characterization of superconducting MgB2 thin film on graphene

open access: yesAIP 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

Electron-Phonon Interaction in NbB_2 : A Comparison with MgB_2

open access: yes, 2002
We present a comparison of electron-phonon interaction in NbB_2 and MgB_2, calculated using full-potential, density-functional-based methods in P6/mmm crystal structure.
Akimitsu   +19 more
core   +2 more sources

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