A UIC graduate student has proposed three promising new designs for superconducting materials that could achieve high-temperature superconductivity at room temperature. The designs were published in the Proceedings of the National Academy of Sciences and demonstrate properties needed for very high-temperature superconductivity.
SourceUniversity of Illinois Chicago·JournalProceedings of the National Academy of Sciences·DateNov 5, 2024
A team of researchers has developed a new way to study disorder in superconductors using terahertz pulses of light. They observed that the disorder in superconducting transport was significantly lower than previously thought, with stability up to 70% of the transition temperature.
SourceMax Planck Institute for the Structure and Dynamics of Matter·JournalNature Physics·DateSep 16, 2024
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A team of researchers has discovered a long-range charge-density wave order in a high-temperature superconductor induced by tensile-compressive strain, challenging conventional beliefs about magnetism as the primary driver. The findings have immense promise for elucidating the underlying mechanisms of high-temperature superconductivity.
SourceOkayama University·JournalNature Communications·TypeExperimental study·DateJul 11, 2024
Researchers have discovered that photo-excited YBa2Cu3O6.48 expels a static magnetic field from its interior, comparable to equilibrium superconductivity. This finding suggests that tailored light pulses can be used to synchronize fluctuating states and restore superconducting order at higher temperatures.
SourceMax Planck Institute for the Structure and Dynamics of Matter·JournalNature·TypeExperimental study·DateJul 11, 2024
Researchers have discovered unusual transport phenomena in ultra-clean SrVO3 samples, contradicting long-standing scientific consensus. The study's findings challenge theoretical models of electron correlation effects and offer insights into the behavior of transparent metals.
SourcePaul-Drude-Institut fur Festkorperelektronik Leibniz-Institut im Forschungsverbund Berlin eV·JournalNature Communications·TypeExperimental study·DateJun 24, 2024
Wang Jian's group and collaborators have discovered charge-4e and charge-6e superconducting states in CsV3Sb5 ring devices, marking the first experimental observation of multi-charge superconductivity. These findings open up new perspectives for exploring novel multiple-fermion states.
SourcePeking University·JournalPhysical Review X·DateMay 16, 2024
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Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.
New approach uses calculation to predict band convergence in materials, allowing for rapid creation of high-performance thermoelectric devices. The method enables elimination of unnecessary possibilities, increasing efficiency and reducing false starts.
Researchers at the University of California San Diego developed superconducting loops that can demonstrate associative memory, allowing computers to remember relationships between unrelated items. The technology has significant power savings, with a million times less energy requirement than traditional computing architecture.
SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateMar 13, 2024
Researchers at Tokyo Metropolitan University have developed a novel approach to create nanoscrolls with improved control over nanostructure. The team achieved tight rolls with scrolls up to five nanometers in diameter and multiple microns in length, opening doors for new applications in catalysis and photovoltaic devices.
SourceTokyo Metropolitan University·JournalACS Nano·DateFeb 10, 2024
Rice physicists find that a 'strange metal' quantum material exhibits greatly suppressed shot noise, suggesting unconventional charge transport mechanisms. The study provides direct empirical evidence for the idea that electricity may flow through strange metals in an unusual liquidlike form.
SourceRice University·JournalScience·TypeExperimental study·DateNov 23, 2023
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Researchers at NIST built a superconducting camera containing 400,000 pixels to capture weak light signals. The new device enables applications in science and biomedical research by having more pixels than any other device of its type.
SourceNational Institute of Standards and Technology (NIST)·JournalNature·TypeExperimental study·DateOct 25, 2023
A team of researchers reviewed the superconducting diode effect, which enables dissipationless supercurrent flow in one direction. The study highlights potential applications for quantum technologies in both classical and quantum computing.
SourceARC Centre of Excellence in Future Low-Energy Electronics Technologies·JournalNature Reviews Physics·TypeExperimental study·DateOct 2, 2023
Researchers at MIT have developed a novel superconducting qubit architecture that can perform operations between qubits with high accuracy, exceeding 99.9% for two-qubit gates and 99.99% for single-qubit gates. The new design utilizes fluxonium qubits, which have longer lifespans than traditional transmon qubits.
SourceMassachusetts Institute of Technology·JournalPhysical Review X·DateSep 25, 2023
A research team at USTC has achieved a new record high superconducting transition temperature of 36 K in elemental materials under high pressure. The study reveals that the structure of Scandium plays a crucial role in its high Tc, which is closely related to its phase diagram at high pressures.
SourceUniversity of Science and Technology of China·JournalPhysical Review Letters·DateJul 28, 2023
Scientists at North Carolina State University have successfully grown high-quality thin films of the recently discovered superconductor material KTaO3. The researchers found that the material retains its superconducting properties even when exposed to extremely high magnetic fields.
SourceNorth Carolina State University·JournalNano Letters·TypeExperimental study·DateJul 27, 2023
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An international team of scientists has successfully measured the electron spin in matter for the first time using kagome materials. The results could revolutionize the study of quantum materials, with potential applications in renewable energy, biomedicine, electronics, and quantum computing.
SourceUniversità di Bologna·JournalNature Physics·DateJun 9, 2023
A University of Minnesota team developed a new superconducting diode that is more energy efficient and versatile than past models. The device can process multiple electrical signals at once and has gates to control the flow of energy, which could enable faster quantum computers for industry use and enhance AI performance.
SourceUniversity of Minnesota·JournalNature Communications·TypeExperimental study·DateJun 6, 2023
Physicists have developed a controlled system of interdependent superconducting networks, a physical analogy to the interdependent networks involved in the Italy blackout. The study shows that coupled systems exhibit an abrupt transition, while separate networks show a smooth transition, as predicted by the theory.
SourceBar-Ilan University·JournalNature Physics·DateMay 1, 2023
Researchers at the University of Rochester have created a nitrogen-doped lutetium hydride that exhibits superconductivity at 69 degrees Fahrenheit and 10 kilobars of pressure. This breakthrough material has the potential to enable practical applications, as it reduces the required pressure for superconductivity to occur.
SourceUniversity of Rochester·JournalNature·TypeExperimental study·DateMar 8, 2023
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Physicists at Paul Scherrer Institute have found a way to tune the temperature of an unusual type of superconductor. By applying pressure, they were able to change the characteristics of the superconductivity from a 'nodal' structure to a 'nodeless' one, opening up possibilities for engineering quantum materials.
SourcePaul Scherrer Institute·JournalNature Communications·DateFeb 2, 2023
Researchers at IBS CSLM discovered pair quasiparticles in a classical system of microparticles driven by viscous flow. These long-lived excitations exhibit anti-Newtonian forces that stabilize pairs, similar to the behavior of Dirac quasiparticles in graphene.
SourceInstitute for Basic Science·JournalNature Physics·TypeComputational simulation/modeling·DateJan 26, 2023
Researchers have developed a new imaging method that captures the light-induced phase transition in vanadium oxide (VO2) with high spatial and temporal resolution. The study reveals that pressure plays a larger role in these transitions than previously expected, challenging previous conclusions.
SourceICFO-The Institute of Photonic Sciences·JournalNature Physics·DateDec 22, 2022
University of Houston researchers have made a groundbreaking discovery in cubic boron arsenide, demonstrating exceptional high carrier mobility. This finding has significant implications for the development of efficient semiconductors, with potential applications in various electronic and optical fields.
SourceUniversity of Houston·JournalPhysics World·DateDec 20, 2022
Physicists at the University of Basel have experimentally demonstrated a negative correlation between the spins of paired electrons from a superconductor. The researchers used spin filters made of nanomagnets and quantum dots to achieve this, as reported in the scientific journal Nature.
SourceUniversity of Basel·JournalNature·TypeExperimental study·DateNov 23, 2022
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Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.
Physicists used machine learning to compress a complex quantum problem into four equations, capturing the physics of electrons on a lattice with high accuracy. The approach could revolutionize how scientists investigate systems containing many interacting electrons and potentially aid in designing materials with sought-after properties.
SourceSimons Foundation·JournalPhysical Review Letters·TypeComputational simulation/modeling·DateSep 26, 2022
Researchers from Tokyo University of Science create a metal–organic framework-based magnesium ion conductor showing superionic conductivity at room temperature, overcoming the limitations of magnesium ion-based energy devices. The novel Mg2+ electrolyte exhibits a high conductivity of 10−3 S cm−1, making it suitable for battery applica...
SourceTokyo University of Science·JournalJournal of the American Chemical Society·TypeExperimental study·DateAug 4, 2022
Researchers at PPPL developed smaller, stronger high-temperature superconducting magnets for spherical tokamaks, enabling more efficient fusion power plants. The new magnets reduce construction costs and increase performance by shrinking the size of tokamaks.
SourceDOE/Princeton Plasma Physics Laboratory·JournalIEEE Transactions on Applied Superconductivity·TypeExperimental study·DateJul 25, 2022
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Researchers observe formation of ordered and tunable MZM lattice in naturally strained LiFeAs, characterized by strain-induced CDW stripes. The lattice density and geometry can be tuned using external magnetic fields, providing a promising platform for manipulating MZMs.
SourceChinese Academy of Sciences Headquarters·JournalNature·TypeObservational study·DateJun 10, 2022
Scientists at Aalto University and Oak Ridge National Laboratory develop new method to detect Cooper pairs in unconventional superconductors, enabling unique understanding of quantum materials. This breakthrough represents a major step forward in developing quantum technologies.
SourceAalto University·JournalNano Letters·TypeObservational study·DateJun 3, 2022
A team of researchers used resonant inelastic X-ray scattering to study the behavior of electron spins in iron selenide, a material that exhibits directionally-dependent electronic behavior. They found that high-energy spin excitations are dispersive and undamped, indicating a well-defined energy-versus-momentum relationship.
SourceRice University·JournalNature Physics·TypeExperimental study·DateMay 23, 2022
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Electronic nematicity, a key feature of iron-based superconductors, is primarily driven by spin excitations in FeSe. The study uses RIXS to reveal the spin anisotropies underlying this phenomenon, shedding light on its origin and potential impact on high-temperature superconductivity.
SourcePaul Scherrer Institute·JournalNature Physics·TypeExperimental study·DateMay 19, 2022
Researchers at Dartmouth have built the world's first superfluid circuit using pairs of ultracold electron-like atoms, allowing for controlled exploration of exotic materials like superconductors. The circuit enables analysis of electron movement in highly controllable settings.
SourceDartmouth College·JournalPhysical Review Letters·DateApr 19, 2022
Researchers at Linköping University have discovered that magnesium diboride becomes superconductive at higher temperatures when stretched. The study's findings offer a new approach to increasing critical temperatures without high pressure or complicated structures.
SourceLinköping University·JournalJournal of Applied Physics·TypeComputational simulation/modeling·DateMar 22, 2022
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Researchers have found direct evidence of strong electron correlation in ABC trilayer graphene, a two-dimensional material that can switch between metal, insulator, and superconductor states. The discovery provides insight into the underlying physics driving these switchable materials.
SourceMassachusetts Institute of Technology·JournalScience·DateMar 17, 2022
Researchers at PSI's Laboratory for Muon Spin Spectroscopy have discovered strong evidence of exotic charge order and orbital currents in a correlated kagome superconductor. The findings provide a new insight into unconventional superconductivity and its relationship with the quantum anomalous Hall effect.
SourcePaul Scherrer Institute·JournalNature·TypeExperimental study·DateFeb 9, 2022
Researchers at Brown University have discovered a new type of strange metal behavior in bosonic Cooper pair materials, challenging traditional electrical rules. This discovery may help explain high-temperature superconductivity and its potential applications.
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Researchers at Brown University discovered that magic-angle graphene becomes a powerful ferromagnet when spin-orbit coupling is introduced. This finding opens up new possibilities for quantum science research and potential applications in computer memory and quantum computing.
SourceBrown University·JournalScience·TypeExperimental study·DateJan 6, 2022
Physicists at Rice University have found telltale signs of antiferromagnetic spin fluctuations coupled to superconductivity in uranium ditelluride, a rare material promising fault-free quantum computing. The discovery upends the leading explanation of how this state of matter arises in the material.
SourceRice University·JournalNature·TypeExperimental study·DateDec 22, 2021
Researchers provide explanation for superconductivity in trilayer graphene, reconciling two seemingly contradictory phenomena. The new theory suggests that an interaction between electrons provides the 'glue' that holds them together, leading to unconventional superconductivity.
SourceInstitute of Science and Technology Austria·JournalPhysical Review Letters·DateDec 10, 2021
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Computational studies reveal new states of matter generated by pump-probe spectroscopy, with potential applications in superconductivity control. The work uses Frontera supercomputer to simulate quantum behavior with high precision, opening doors to novel phases and technologies.
SourceUniversity of Texas at Austin, Texas Advanced Computing Center·JournalPhysical Review X·TypeComputational simulation/modeling·DateDec 1, 2021
Researchers created a new ultra-thin material with quantum properties emulating rare earth compounds. The material exhibits the Kondo effect, leading to macroscopically entangled state of matter producing heavy-fermion systems.
SourceAalto University·JournalNature·TypeExperimental study·DateNov 24, 2021
Scientists from Japan and Denmark discovered disordered one-dimensional chains in indium telluride, which exhibit ultralow thermal conductivity. This finding confirms the chemical and physical basis of low thermal conduction in thallium selenide-type materials, advancing thermoelectric power technologies.
SourceUniversity of Tsukuba·JournalNature Communications·DateNov 18, 2021
A team of researchers from Tohoku University discovered a unique, purely two-dimensional Mott insulator phase that is extremely robust against various perturbations such as heating. This breakthrough has significant implications for realizing monolayer charge-density wave-Mott insulator-based devices operating at room temperatures.
SourceTohoku University·JournalNature Communications·DateOct 21, 2021
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Scientists discovered structural and surface chemistry defects in superconducting niobium qubits that may cause loss. The study pinpointed these defects using state-of-the-art characterization capabilities at the Center for Functional Nanomaterials and National Synchrotron Light Source II.
SourceDOE/Brookhaven National Laboratory·JournalCommunications Materials·DateSep 30, 2021
Researchers have observed a unique phenomenon where vibrations in a nickel oxide material increase with cooling, leading to the formation of faster fluctuations and ordered regions. This behavior is unusual and differs from the expected trend, which is that less thermal energy leads to more fluctuations freezing and order growing.
SourceHelmholtz-Zentrum Berlin für Materialien und Energie·JournalPhysical Review Letters·DateAug 4, 2021
Researchers have discovered a new form of magnetism in magnetic graphene, which could help understand superconductivity. The material's unique properties allow it to remain magnetic even when becoming a conductor under high pressure.
SourceUniversity of Cambridge·JournalPhysical Review X·DateFeb 8, 2021
A team of researchers has discovered a new complex europium hydride, Eu8H46, which has a structure of 54 atoms. The discovery was made possible by the efficient USPEX crystal structure prediction tool, which helped understand and explain experimental data.
SourceSkolkovo Institute of Science and Technology (Skoltech)·JournalThe Journal of Physical Chemistry Letters·DateDec 15, 2020
Scientists at Institute of Physics, Chinese Academy of Science analyzed parent compound NdNiO2 using first-principles calculations and Gutzwiller variational method. They found that electron Fermi pockets are contributed by Ni-3dx2-y2 orbitals and a two-band model can be constructed to reproduce all bands around Fermi level.
SourceScience China Press·JournalNational Science Review·DateNov 24, 2020
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Researchers from Tokyo Institute of Technology elucidate the underlying cause behind different critical transition temperatures reported for ultrathin iron selenide (FeSe) superconductors, finding the interface between FeSe and STO substrate essential for high-temperature superconductivity. The study reveals variability in Tc values du...
SourceTokyo Institute of Technology·JournalPhysical Review Letters·DateJun 24, 2020
Professor Frank Steglich's research on heavy fermion superconductors has revolutionized our understanding of superconductivity. The Fritz London Memorial Prize recognizes his contributions to the field of low temperature physics.
SourceMax Planck Institute for Chemical Physics of Solids·DateFeb 28, 2020
Physicists have discovered that an existing technique is more accurate in explaining the 'critical temperature' of superconductivity in pure, single-layer graphene. This finding has significant implications for understanding graphene's diverse structural properties and potentially aiding the development of new technologies.
SourceSpringer·JournalThe European Physical Journal B·DateDec 13, 2019
Researchers propose a scheme to enhance the transition temperature of atomic Fermi gases by tuning the pairing interaction strength and lattice spacing, leading to high Tc/TF ratios. This concept has the potential to simulate high Tc superconductivity and aid in the design of new superconductors.
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Researchers have discovered a crossover in PtTe2 films from a 2D metal to a 3D Dirac semimetal with spin texture induced by local Rashba effect. The work reveals a metallic band dispersion of PtTe2 thin films even down to 2 ML, showing a strong thickness-dependent evolution.
SourceScience China Press·JournalScience Bulletin·DateAug 19, 2019
Researchers studied H2SO4-GIC to monitor stage transitions and observed a difference in mechanisms between natural flake graphite-based and HOPG-based GICs. The findings advance the field of graphene and have potential applications in Li-ion batteries, hydrogen fuel cells, and single-layer graphene production.
SourceKazan Federal University·JournalThe Journal of Physical Chemistry C·DateAug 8, 2019
The discovery of a field-induced pair density wave state in high temperature superconductors provides new insights into the mechanism behind enigmatic high temperature superconductivity. The study reveals modulations in electronic states with multiple signatures of a pair density wave state, which competes with superconductivity.
SourceMax Planck Institute for Chemical Physics of Solids·JournalScience·DateJun 12, 2019
Researchers have confirmed the prediction of superconductivity in a new class of materials called superhydrides at high pressures, approaching room temperature. This breakthrough could lead to lower resistance transmitter and reduce energy loss in power lines.
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Researchers found that light pulses can induce eta pairing in Mott insulators, turning them into superconductors. This unconventional type of conductivity arises from repulsive interactions between electrons and is believed to take place under non-equilibrium conditions.
SourceRIKEN·JournalPhysical Review Letters·DateMar 3, 2019
Researchers confirm existence of 'quantum critical point' at high temperatures, believed to be the moment when superconductivity occurs. The discovery is a significant step towards understanding and creating room-temperature superconductors.
SourceUniversity of Texas at Austin·JournalNature·DateFeb 25, 2019
Physicist Zhifeng Ren, director of the Texas Center for Superconductivity at the University of Houston, has received a research award from the Alexander von Humboldt Foundation to collaborate with German researchers. He will focus on new fabrication techniques and thermoelectric materials to improve clean energy conversion.
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Researchers have identified a flat band area in graphene that is a prerequisite for superconductivity, but requires further assistance to achieve. The discovery uses high-resolution angle-resolved photoemission spectroscopy (ARPES) and could lead to controlled band structure manipulation.
SourceHelmholtz-Zentrum Berlin für Materialien und Energie·JournalScience Advances·DateNov 9, 2018