Articles tagged with Superconductivity
Researchers are exploring quantum RF sensing, sensemaking, and related technologies through a three-year MOU. The collaboration combines superconducting quantum technology and advanced signals expertise to address congested electromagnetic environments and complex operational scenarios.
At an oxide interface, an electric field can shift the main constraint on superconductivity from collective coordination to pair formation, enabling island network formation. This discovery was made at a LaAlO3/KTaO3 interface, where superconductivity is confined to a thin layer.
The study reveals that compressive strain and oxygen content drive a microscopic evolution towards superconductivity in Ruddlesden-Popper nickelates. Electronic states associated with interlayer orbitals become delocalized, long-range magnetic order loses coherence, and robust short-range magnetic correlations persist.
The study reveals three superconducting phases in K₂Cr₃As₃, each with distinct spin configurations and topological properties. Phase B breaks time-reversal symmetry and may host Majorana excitations, while Phase A could host Majorana states at its boundaries.
Researchers achieved a significant advance in controlling quantum states of matter by harnessing vacuum fluctuations to enhance superconductivity. The team demonstrated a substantial increase in the superconducting critical temperature of NbSe2, with a 5.4% increase in a six-layer device.
Using TaS2 as a model system, researchers demonstrate that coordinated interlayer sliding and intralayer atomic reconstruction can reorganize layered crystals into adaptive hetero-phase superlattices. This enables the construction of superlattice architectures and controlling emergent quantum states in layered materials.
Researchers have discovered a new class of high-Tc superconductors among 5d transition-metal-oxides, with the highest Tc recorded at 17.8 K in ReO3. The discovery is attributed to the synergistic mechanism of pressure-enhanced orbital hybridization and oxygen-lattice-dominated electron-phonon coupling.
A Tulane University team is using AI to discover new superconductors, which could improve the nation's electrical grid, medical imaging, and quantum computing. The project combines high-fidelity calculations, physics-aware AI, and experimental measurements to accelerate discovery.
Researchers discovered that niobium diselenide and TaS₂ exhibit two strongly interacting superconducting states, resolving a long-standing mystery about their behavior. This finding provides new insight into superconductivity and could aid in designing better superconducting materials for future technologies.
A new study reveals how generic electron interactions in 3D cubic lattices lead to Weyl topological superconductivity. The researchers found that repulsive electron interactions create a chiral d+id pairing state with an octupolar component, featuring eight gapless Weyl points.
Physicists have identified two new superconductors, YRu3B2 and LuRu3B2, using machine-learning to filter material combinations. This breakthrough aims to find a room-temperature superconductor, which could slash global energy consumption and reduce the heat footprint of ICT sector.
Researchers at RIKEN CEMS created a thin conducting layer at oxide interface and observed reentrant superconductivity, where superconductivity disappears then re-emerges under increased magnetic field. This phenomenon provides new platform for investigating unconventional forms of superconductivity and quantum mechanisms.
Researchers from MIT developed a technique to detect and precisely measure second-order harmonic corrections in superconducting quantum circuits. This analysis revealed the source of these distortions, which can cause quantum circuits to perform differently than expected.
Researchers from ISTA have explained the unusual superconducting behavior of UTe2, a material that exhibits zero electrical resistance under specific magnetic field conditions. By studying magnetic fluctuations, they revealed a new mechanism behind reentrant superconductivity, shedding light on this enigmatic phenomenon.
Scientists have found evidence of chiral superconductivity, a long-sought form of superconductivity where electron pairs twist into a signature left or right 'handedness.' Quasiparticle interference imaging revealed distinctive patterns around point defects in the tin layer.
A new method developed at LMU reconstructs precise energy spectra without lengthy calculations, revealing previously hidden details. This approach uses complex time evolutions to supplement time-dependent data and effectively overcomes the resolution limit, allowing finer structures to be resolved.
A team of scientists has found that applying pressure to the heavy-fermion ferromagnet Ce5CoGe2 reveals superconductivity above a magnetic quantum critical point, defying typical expectations. The unusual phase diagram suggests that other ingredients beyond magnetic fluctuations may drive superconductivity in this material.
Researchers directly imaged paired electrons causing electric current to flow without resistance at sufficiently low temperatures. The experiment revealed that the paired atoms moved in a synchronized dance, with their positions dependent on those of other pairs.
Researchers at Chalmers University of Technology have demonstrated that several qubits can share the same cable without significantly increasing computation time. This breakthrough technique could enable large-scale quantum computers with thousands of well-functioning qubits, revolutionizing fields like drug development and logistics.
Researchers at Ohio State University have discovered a new method for controlling superconductivity by manipulating the surrounding environment. By adjusting electron interactions, they were able to switch the material's superconductivity on and off, revealing a simpler way to control atomic power behind superconductivity.
A team of researchers has found that nonmagnetic impurities can help reveal Majorana zero modes, a promising building block for quantum computing. By shifting energy levels, these impurities make the mode's spectral peak more distinct, allowing clearer detection.
Researchers at Chalmers University of Technology have developed a new material design that enables superconductivity to operate at higher temperatures and withstand strong magnetic fields. This breakthrough could pave the way for far more energy-efficient electronics and quantum technologies.
Researchers achieved a transition temperature of 151 Kelvin, setting the stage for future advancements in superconductivity. The breakthrough could lead to more efficient ways to generate, transmit, and store energy, conserving billions of dollars in savings and reducing environmental impacts.
An international team of researchers calls for a coordinated effort to find room temperature superconductors, which could revolutionize technology and everyday life. The team proposes a strategy to systematically search for materials and manipulate their properties using advanced techniques.
Researchers from Tokyo Metropolitan University have discovered a hydrogen-absorbing material with negative thermal expansion properties, which can be tuned by adjusting the amount of hydrogen. This finding promises custom high-precision ingredients for precision nanotechnology, addressing volume changes in materials under heating.
Scientists at Columbia University have experimentally confirmed that quantum fluctuations in a 2D material can alter the properties of a nearby crystal. The team placed a nanometer-sized flake of hexagonal Boron nitride on top of a superconducting material, where the vibrations matched and interacted, suppressing superconductivity.
Venkat Selvamanickam, a University of Houston engineering professor, has been recognized by the National Academy of Engineering for his contributions to industrial-scale advanced manufacturing processes for high-temperature superconductor wires. His work has transformed the energy industry and modernized electric grids, strengthening e...
Physicists have developed a new terahertz microscope that allows them to observe quantum vibrations in superconducting materials for the first time. The microscope enables researchers to study properties that could lead to room-temperature superconductors and identify materials that emit and receive terahertz radiation.
Researchers from TU Wien have provided a surprising explanation for the long-standing relation between magnetism and superconductivity in quantum materials. Altermagnetism, an unusual form of magnetism, is found to be experimentally observable in certain materials when superconductivity sets in.
Researchers used causal AI to extract insights from ARPES data of cesium vanadium antimonide, a kagome superconducting material. The technology revealed that the chemical bonding state of cesium atoms strongly influences the electronic state of the V3Sb5 layer, responsible for superconductivity.
Theoretical physicists at MIT propose that under certain conditions, magnetic material’s electrons could form quasiparticles called “anyons” that can flow together without friction. If confirmed, it would introduce a new form of superconductivity persisting in the presence of magnetism.
Researchers at RIKEN Center for Emergent Matter Science have created a new superconducting thin film from iron telluride, suitable for quantum computing applications. The film's unique crystal structure, resulting from intentional misalignment of atomic layers, reduces lattice distortion and enables low-temperature superconductivity.
Two University of Houston scientists, Zhifeng Ren and Yan Yao, have been named Highly Cited Researchers by Clarivate's program for their significant scientific influence in energy research. Their work has led to transformative discoveries and innovations in superconductivity and energy storage.
Researchers at FAMU-FSU College of Engineering have developed a design that uses multiple strands of superconducting tape to create a cable, minimizing the chance of failure from defective spots within a wire. This technology helps solve engineering and manufacturing challenges for manufacturers and could lead to more efficient and les...
A team of scientists measured the energy of charge carrier pairs in undoped La₂CuO₄ and found that the interaction energies within the potentially superconducting copper oxide layers are significantly lower than those in insulating lanthanum oxide layers. This discovery contributes to a better understanding of high-temperature supercon...
Researchers have discovered new evidence of unconventional superconductivity in magic-angle twisted tri-layer graphene, a material that exhibits exotic electronic behavior. The team found that the material's superconducting gap looks very different from typical superconductors, suggesting a unique mechanism for its emergence.
Researchers have developed a topological insulator that exhibits the Quantum Spin Hall Effect even at significantly higher temperatures than previous materials. This breakthrough paves the way for the creation of energy-efficient and powerful devices, with potential applications in established semiconductor technology.
A team of researchers from Yokohama National University has developed a novel compact superconductive neuron device that operates at high speeds with ultra-low power consumption. The device eliminates variation in elemental circuit characteristics, achieving ideal input-output characteristics and resolving the vanishing gradient problem.
A new study by MIT researchers evaluates the scale-up potential of over 16,000 quantum materials, finding that those with high quantum fluctuation in electrons tend to be more expensive and environmentally damaging. The team identified promising candidates with an optimal balance between quantum functionality and sustainability for fur...
Researchers at the Niels Bohr Institute created an intermediate state between superconductor and total insulation by controlling quantum fluctuations in tiny superconducting islands. This 'anomalous metallic regime' is a crucial step toward more controllable and reliable quantum devices.
The PLD-REBCO industry has seen rapid development thanks to commercial compact fusion, enabling mass production of high-performance REBCO tapes with excellent in-field performance. However, challenges remain, including reducing costs and improving scalability, which require closer collaboration between industry and academia.
Researchers developed a refined analytical computational model for electromagnetic forces in HTS maglev systems, offering fast computation speed and clear parameter relationships. This enables comprehensive optimization and enhancement of the levitation system, reducing reliance on rare-earth permanent magnets.
Researchers have discovered a way to control double-dome superconductivity in twisted trilayer graphene by tuning the material's band structure. The study sheds light on how unconventional superconductivity emerges and can be tuned, opening up possibilities for designing quantum devices.
Researchers propose a self-doped molecular Mott insulator model for La3Ni2O7, connecting strong correlations and interlayer coupling to its superconducting properties. The material's unique bilayer structure leads to localized atomic orbitals forming symmetric and antisymmetric molecular orbitals.
Researchers have uncovered the three-dimensional electronic structure of LiV₂O₄, revealing a flat band and electron-like dispersion. The findings suggest strong correlations, Hund's coupling, and frustrated lattice geometry contribute to the heavy fermion state.
Durham University scientists have completed one of the largest quality verification programmes on superconducting materials for the world's biggest fusion energy experiment ITER. Their findings shed light on the quality of wires and how to test them, providing crucial knowledge for scientists to make fusion energy a reality. The resear...
Scientists at Penn State developed a new method to predict superconducting materials using density functional theory and zentropy theory, potentially leading to discovery of new superconductors at higher temperatures. The approach successfully predicted signs of superconductivity in conventional and high-temperature superconductors.
Researchers mapped the angular dependence of a high-field superconducting state in UTe2, revealing a toroidal halo surrounding a specific crystalline axis. A theoretical model developed by Andriy Nevidomskyy successfully reproduced the nonmonotonic behavior, attributing it to Cooper pairs carrying intrinsic angular momentum
Researchers developed the Su-Schrieffer-Heeger-Hubbard model, integrating electron-phonon coupling with Hubbard interactions to explain d-wave high-Tc superconductivity. The study reveals intricate competition among s-wave and d-wave superconductivities and stripe charge-density order.
A Bar-Ilan University research team has discovered a mechanism behind abrupt transitions in complex systems, revealing how tiny changes can trigger global collapses. By monitoring the branching factor, they may predict when a system is nearing a critical breakdown.
Researchers discovered two-band superconductivity in rhombohedral ZrNCl, exceeding previous reports, and found a large diffusivity ratio suggesting weaker intraband scattering. The material exhibits bulk superconductivity with strong vortex pinning and decoupled rotational symmetry.
Researchers at the Niels Bohr Institute have created a novel pathway to study elusive quantum states in superconducting vortices. They designed a tiny superconducting cylinder and applied magnetic flux to mimic the essential physics, allowing them to study these states on their own terms.
A research team at Rice University has developed a new material, known as a Kramers nodal line metal, with novel electronic properties that could enable more powerful and energy-efficient electronic devices. The material demonstrates superconducting properties and the ability to carry electricity without energy loss.
A team led by Junichi Shiogai successfully observes the superconducting diode effect in an Fe(Se,Te)/FeTe heterostructure, exhibiting rectification under various temperature and magnetic fields. This breakthrough paves the way for ultra-low energy electronics built from superconductors.
Researchers at MIT have captured the first images of individual atoms freely interacting in space, visualizing never-before-seen quantum phenomena. The technique allows scientists to directly observe correlations among 'bosons' and fermions, shedding light on their behavior and interactions.
Researchers have observed the interactions between electrons and a unique atomic vibration in twisted graphene, called a 'phason', for the first time. The Quantum Twisting Microscope has provided unprecedented insight into electron-phonon dynamics, shedding new light on superconductivity and 'strange metallicity'.
Researchers observed spatial periodic modulations of superconducting order parameters within a single unit cell, revealing the breaking of glide-mirror symmetry and essential role of chalcogen atoms in local Cooper pairing. This discovery provides microscopic insights into unconventional Cooper pairing on the sub-unit-cell scale.
Researchers from RIKEN Center for Emergent Matter Science have discovered a groundbreaking way to control superconductivity by adjusting the twist angle of atomically thin layers. This allows for fine-tuning of the superconducting gap, which is crucial for optimizing Cooper pair behavior and developing high-functionality quantum device...
Scientists at the University of Rochester have discovered a way to create artificial atoms within twisted monolayers of molybdenum diselenide, retaining information when activated by light. This breakthrough could lead to new types of quantum devices, such as memory or nodes in a quantum network.
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