Results 21 to 30 of about 93,472 (290)

Evidence for unconventional superconductivity in twisted bilayer graphene [PDF]

open access: yesNature, 2021
The emergence of superconductivity and correlated insulators in magic-angle twisted bilayer graphene (MATBG) has raised the intriguing possibility that its pairing mechanism is distinct from that of conventional superconductors1–4, as described by the ...
Myungchul Oh   +7 more
semanticscholar   +1 more source

Spectroscopic evidence for the superconductivity of elemental metal Y under pressure

open access: yesNPG Asia Materials, 2023
Very high applied pressure induces superconductivity with the transition temperature (T c) exceeding 19 K in elemental yttrium, but relatively little is known about the nature of that superconductivity.
Zi-Yu Cao   +8 more
doaj   +1 more source

Unusual competition of superconductivity and charge-density-wave state in a compressed topological kagome metal [PDF]

open access: yesNature Communications, 2021
Understanding the competition between superconductivity and other ordered states (such as antiferromagnetic or charge-density-wave (CDW) state) is a central issue in condensed matter physics. The recently discovered layered kagome metal AV3Sb5 (A = K, Rb,
F. Yu   +7 more
semanticscholar   +1 more source

Covalent surface modifications and superconductivity of two-dimensional metal carbide MXenes

open access: yesScience, 2020
Modifying MXene surfaces Unlike graphene and transition-metal dichalcogenides, two-dimensional transition-metal carbides (MXenes) have many surface sites that can be chemically modified. Etching of the aluminum layer of a parent MAX phase Ti3AlC2 layered
Vladislav Kamysbayev   +7 more
semanticscholar   +1 more source

Appearance of antiferromagnetism and superconductivity in superconducting cuprates [PDF]

open access: yesPhysica C: Superconductivity, 2013
23 pages, 13 ...
Kucab, Krzysztof   +2 more
openaire   +2 more sources

Reliability Evaluation of Software Filters Applied to Conduction Current in HVDC Power Cables

open access: yesIEEE Access, 2021
For design and operation, the conduction current of insulation must be obtained in high-voltage direct current (HVDC) power cables. The measured noise from the environment and equipment can have a significant impact on the reliability of the conduction ...
Seung-Won Lee   +3 more
doaj   +1 more source

Superconductivity, superfluidity and quantum geometry in twisted multilayer systems [PDF]

open access: yesNature Reviews Physics, 2021
Superconductivity has been observed in moiré systems such as twisted bilayer graphene, which host flat, dispersionless electronic bands. In parallel, theory work has discovered that superconductivity and superfluidity of flat-band systems can be made ...
P. Törmä, S. Peotta, B. Bernevig
semanticscholar   +1 more source

Superconductivity in the Fullerenes

open access: yesScience, 1991
Intramolecular vibrations strongly scatter electrons near the Fermi-surface in doped fullerenes. A simple expression for the electron-phonon coupling parameters for this case is derived and evaluated by quantum-chemical calculations. The observed superconducting transition temperatures and their variation with lattice constants can be ...
Varma, C.M.   +2 more
openaire   +4 more sources

J e (4.2 K, 31.2 T) beyond 1 kA/mm2 of a ~3.2 μm thick, 20 mol% Zr-added MOCVD REBCO coated conductor

open access: yesScientific Reports, 2017
A main challenge that significantly impedes REBa2Cu3Ox (RE = rare earth) coated conductor applications is the low engineering critical current density J e because of the low superconductor fill factor in a complicated layered structure that is crucial ...
A. Xu   +12 more
doaj   +1 more source

Superconductivity at 250 K in lanthanum hydride under high pressures [PDF]

open access: yesNature, 2018
With the discovery1 of superconductivity at 203 kelvin in H3S, attention returned to conventional superconductors with properties that can be described by the Bardeen–Cooper–Schrieffer and the Migdal–Eliashberg theories.
A. Drozdov   +13 more
semanticscholar   +1 more source

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