Results 121 to 130 of about 14,666,949 (243)

Manipulating high-temperature superconductivity by oxygen doping in Bi2Sr2CaCu2O8+δ thin flakes. [PDF]

open access: yesNatl Sci Rev, 2022
Lei B   +9 more
europepmc   +1 more source

Unconventional density-wave state in Ruddlesden‒Popper nickelate La4Ni3O10

open access: yesNature Communications
The recent discovery of superconductivity in Ruddlesden‒Popper (RP) nickelates Rn+1NinO3n+1 (R = rare earth) under high pressure provides a new platform to understand the underlying physics of high-temperature superconductivity.
Yu Wang   +9 more
doaj   +1 more source

Electric Field‐Induced Hole‐ and Electron‐Type Flat Bands in Twisted Double Bilayer Graphene

open access: yesAdvanced Electronic Materials, EarlyView.
The electronic structure of twisted double bilayer graphene is visualized using angle‐resolved photoemission spectroscopy with micrometer spatial resolution at twists of 3.1∘$^\circ$ and 6.0∘$^\circ$ as a function of gate voltage. Tunable hybridization effects and flat band formation occurs between valence and conduction band states due to a finite ...
Zhihao Jiang   +13 more
wiley   +1 more source

Stabilization of High‐Pressure Phase of Face‐Centered Cubic Lutetium Trihydride at Ambient Conditions

open access: yesAdvanced Science
Superconductivity at room temperature and near‐ambient pressures is a highly sought‐after phenomenon in physics and materials science. A recent study reported the presence of this phenomenon in N‐doped lutetium hydride [Nature 615, 244 (2023)], however ...
Xin Li   +6 more
doaj   +1 more source

Extrinsic and Intrinsic Charge Transfer at Interfaces of Membrane‐Based Oxide Heterostructures

open access: yesAdvanced Electronic Materials, EarlyView.
Freestanding oxides have emerged as a new opportunity to tailor oxides outside of the typical epitaxial constraints. We present the fabrication of TiO2‐terminated SrTiO3 membranes via direct growth control. We demonstrate competing ionic and electronic charge transfer in LaAlO3/SrTiO3 bilayers using near ambient pressure XPS.
Kapil Nayak   +8 more
wiley   +1 more source

Design and optimisation of a coreless superconducting synchronous generator

open access: yes, 2010
Constantly increasing demand for electrical power requires more efficient and more powerful machines to be built. The conventional technology cannot provide such machines.
Lukasik, Bartosz
core   +1 more source

Molecular Design Strategies for High‐Voltage Organic Cathodes

open access: yesAdvanced Energy Materials, EarlyView.
This work proposes molecular engineering strategies for high‐voltage organic cathode materials for Li‐ion batteries: (1) increase Li‐O coordination number (CN), (2) achieve a greater increase in aromaticity upon reduction (∆Aromaticity), and (3) add an electron‐withdrawing group (EWG), through a combined experimental and computational study on reported
Sungil Hong   +8 more
wiley   +1 more source

design and development of a vibrating sample magnetometer for high magnetic field measurements of superconductors [PDF]

open access: yes, 1994
A Vibrating Sample Magnetometer (VSM) has been designed, constructed and developed. The design specification was for a VSM to work in magnetic fields up to 15T, and provide a variable temperature environment for the sample from 4.2K to 130K.
Luscombe, Robert
core  

Materials Representation Learning Based on a Material–Motif Network and Heterogeneous Graphs

open access: yesAdvanced Intelligent Discovery, EarlyView.
Structure motifs in materials are used to construct a bipartite material–motif network that links each material to its constituent motifs and establishes connectivity among materials sharing common motifs. Network analysis reveals material clusters associated with different functional applications and supports motif‐guided screening of materials.
Anoj Aryal   +3 more
wiley   +1 more source

One‐Dimensional Hydrogen Chains in Li–Hf–H System: A Pathway to High Superconductivity Under High Pressure

open access: yesAdvanced Science
The recent discovery of high‐critical‐temperature (high‐Tc) superconductivity in hydrides such as H3S and LaH10 has significantly advanced the quest for room‐temperature superconductors.
Kang Yang   +9 more
doaj   +1 more source

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