Superconductors, as physical systems, are materials that, below a critical temperature, exhibit exactly zero DC electrical resistance and expel interior magnetic fields via the Meissner effect, indicating a thermodynamic phase distinct from ordinary conductors. Their behavior is described microscopically by Bardeen–Cooper–Schrieffer (BCS) theory for conventional superconductors, where electrons form Cooper pairs that condense into a macroscopic quantum state with a complex order parameter and an energy gap in the excitation spectrum. Superconductors also display quantization of magnetic flux, support dissipationless supercurrents, and exhibit rich phase diagrams influenced by temperature, magnetic field, and material structure.
RIKEN physicists have found an ideal platform for exploring the behavior of electrons in a material as it approaches superconductivity. This could help to develop new superconductors that operate at more convenient temperatures ...
Superconductivity
Jan 11, 2024
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In the realm of superconductivity, the durability and efficiency of materials like REBCO (Rare Earth Barium Copper Oxide) tapes are crucial for application in various high-tech fields. However, these materials face challenges, ...
Superconductivity
Jan 5, 2024
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In a recent leap forward for quantum computing and optical technologies, researchers have uncovered an important aspect of photon detection. Superconducting nanowire single-photon detectors (SNSPDs), pivotal in quantum communication ...
Optics & Photonics
Dec 29, 2023
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Quantum computers have the potential to outperform conventional computers on some tasks, including complex optimization problems. However, quantum computers are also vulnerable to noise, which can lead to computational errors.
Superconductors have intrigued physicists for decades. But these materials, which allow the perfect, lossless flow of electrons, usually only exhibit this quantum-mechanical peculiarity at temperatures so low—a few degrees ...
Superconductivity
Dec 18, 2023
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Researchers from the National Institute of Information and Communications Technology has invented a novel structure in a superconducting strip photon detector that enables highly efficient photon detection even with a wide ...
Nanophysics
Oct 31, 2023
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Researchers at the University of Basel and Lund University have generated superconducting pair states of electrons on several segments of a nanowire, separated by grown barriers. Depending on the height of the barriers, these ...
Nanophysics
Aug 1, 2023
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Researchers from Skoltech, Jiangsu Normal University, and elsewhere have predicted unexpected compounds formed by lithium and cesium under high pressure. These new substances display unexpected chemistry and never-before-seen ...
Nanophysics
May 31, 2023
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A team of chemists, engineers, material scientists and physicists from Princeton University, Rutgers University and the University of Regensburg has developed a chemical exfoliation technique to produce single-molecule-thick ...
Molybdenum disulfide MoS2 is a groundbreaking material for electronics applications. As a two-dimensional layer similar to graphene, it is an excellent semiconductor, and can even become intrinsically superconducting under ...
Nanophysics
Feb 23, 2023
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