Articles tagged with Superconduction
UBC researchers have discovered a universal electronic state that controls the behavior of high-temperature superconducting copper-oxide ceramics. The work reveals the existence of 'charge-density-waves', which carry the seeds of superconductivity emerging in these materials.
Researchers have developed a nano-SQUID-on-tip that measures magnetic fields at distances as small as a few nanometers from the sample, breaking the record for sensitivity and resolution. This tiny device may also enable measuring the magnetic field from the spin of a single electron, a major breakthrough in magnetic imaging.
Researchers found that two types of iron-based superconductors employ similar coupling between electrons in their superconducting state. Understanding this mechanism may help create even better superconductors with higher transition temperatures.
Physicist Aleksey Kolmogorov and colleagues successfully synthesized the world's first superconductor designed entirely on the computer. The iron tetraboride compound exhibits an unexpected type of superconductivity and exceptional hardness, with potential applications in power transmission.
A UC Santa Barbara research team has demonstrated a nanomechanical transducer that provides strong and coherent coupling between microwave signals and optical photons. This breakthrough enables the translation of electrical quantum states to optical quantum states, paving the way for secure communication and quantum teleportation.
Researchers explore various applications of superconductivity in water purification, earthquake monitoring, high-speed rail travel, and renewable energy storage. The technology also enables the detection of unexploded ordnances and solar bursts, promoting a more sustainable future.
Researchers at ORNL introduced small amounts of non-superconducting material to control nanoscale columns, resulting in optimized superconducting performance. The wires achieved record-breaking engineering critical current density, exceeding twice the required level for most applications.
A team of physicists at UCSB has made a discovery that provides new understanding in the quantum realm. By manipulating light on superconducting chips, they have developed an unprecedented level of control over photons, enabling the shaping of released photons into different wave forms.
Researchers have engineered a unique multilayer material that achieves extraordinary superconducting properties, including increased current-carrying capabilities and improved magnetic field stability. The breakthrough could lead to real-world applications in electronic devices, transportation, and power transmission.
Researchers at MIT have detected fluctuating charge-density waves in high-temperature superconductors, a key finding that could help understand the phenomenon and potentially lead to room-temperature superconductors. The new technique sheds light on the exotic state of matter, which has remained poorly understood despite intense research.
Aalto University researchers have made a breakthrough in connecting a superconducting qubit with a micrometer-sized drum head, enabling the transfer of information between the two. This achievement opens up new possibilities for creating exotic mechanical quantum states, such as simultaneous vibration and non-vibration.
Researchers have achieved impressive results in a three-year project to develop wind turbines using superconducting wire, exceeding initial targets by 15 percentage points. The U.S. Department of Energy has awarded additional funding, increasing the total project value to $4 million.
Researchers at Oak Ridge National Laboratory have made significant progress in fabricating advanced nanomaterials with improved properties. The controlled assembly of nanostructures enables the creation of self-assembled films with novel and unprecedented properties suitable for various electrical and electronic applications.
Scientists have synthesized a new material with promising superconducting transition temperatures of 44 Kelvins, improving upon traditional copper-based high-temperature superconductors. The material, LixFe2Se2(NH3)y, displays an intercalation of potassium or rubidium, achieving a superconducting temperature of 32K.
Scientists have discovered a way to manipulate superconducting materials using light. This breakthrough allows for the creation of ideal superconductors with continuous electrical current without losing any power. The research has potential applications in developing non-dissipated memories and improving energy efficiency.
Electronic asymmetry was discovered in iron-based high-temperature superconductors, providing new insights into their behavior. The study found that this asymmetry is a result of collective electronic behavior and may be essential for the material's superconductivity.
Researchers observe electrons gain mass while cooling down to far below room temperature, acting like much heavier particles, yet remain speedy superconductors at even lower temperatures. The degree of entanglement determines the properties of a material.
Researchers used ultrafast laser ARPES to study the electronic states of high-temperature superconductors. The technique revealed trends in Cooper pair formation, which may be connected to the mechanism holding them together.
Researchers observed an intermittent motion of magnetic flux in a superconducting strip, resulting in alternating static and dynamic phases with zero and non-zero voltage peaks. The study's findings have potential applications for gate devices controlling on/off states in electrical systems.
Researchers used 100-femtosecond laser pulses to capture fine-grained data on electron relaxation and its influence on superconducting properties. This technique reveals that high-critical temperatures are driven by purely electronic processes.
The NIST SCUBA-2 camera is the world's largest submillimeter camera, containing over 10,000 superconducting sensors. It will enable faster and more accurate mapping of the sky, producing better images and sky maps.
Researchers at the Princeton Plasma Physics Laboratory have created a video simulation showcasing the complex dynamics of a plasma pulse within an experimental fusion machine, offering new insights into particle confinement and magnetic field manipulation. The simulation provides a detailed 3D picture of the plasma, allowing researcher...
Cornell researchers have surpassed two major milestones toward a novel, exceedingly powerful X-ray source: a record-breaking electron gun emittance of 0.8 micrometers and a successfully tested prototype of a superconducting linac cavity.
A public-private research team led by the University of Houston will develop an efficient and low-cost high-temperature superconducting wire for use in future advanced wind turbine generators. The goal is to make superconducting wind generators more practical for widespread use.
Scientists at University College London and Sapienza University of Rome have developed a method to manipulate high-temperature superconductivity in materials. By illuminating with X-rays, researchers can create and control tiny superconducting structures, enabling the creation of new electronic devices.
Alex Romanenko, a Fermi National Accelerator Laboratory scientist, has been awarded $2.5 million to expand his research on superconducting radio frequency cavities made of niobium metal. His work could lead to the development of more efficient and powerful accelerators for medicine, energy, and discovery science.
Researchers used a precise atom-by-atom layering technique to fabricate ultrathin transistor-like devices, studying the conditions that turn insulating materials into high-temperature superconductors. The study revealed that as mobile charge carriers are increased, cuprate films transition from insulating to superconducting behavior wh...
Scientists from Helmholtz-Zentrum Dresden-Rossendorf and TU Dresden created a unique material, Bi3Ni, with nanometer-scale size, which exhibits both ferromagnetism and superconductivity. This phenomenon is rare and not yet fully understood, with the possibility of featuring a special type of superconductivity.
Researchers discovered a distinct order in electrons during pseudogap state, present both above and below superconducting temperatures. The findings provide a clear signpost for follow-up research to uncover the nature of the pseudogap order.
A team of scientists has found that the pseudogap in high-temperature superconductors is not a gradual transition to superconductivity, but rather a distinct phase of matter. This discovery challenges current understanding and opens up new possibilities for achieving superconductivity at higher temperatures.
Researchers at the National Institute for Materials Science found that immersion in heated alcoholic beverages increased superconducting ability of iron-based compounds. Red wine was shown to induce best properties, suggesting another component may be key.
Researchers at NIST have developed compact high-temperature superconducting cables with improved strain tolerance, enabling thinner and more flexible cables for electric power grid applications. The new cables may also be used in scientific and medical equipment, as well as for military applications such as HTS power transmission.
Researchers at Johns Hopkins University and Brookhaven National Laboratory measured superconducting fluctuations in a superconductor, finding they disappear 10-15 Kelvin above the transition temperature. This suggests electron pairs lose coherence rather than break apart at Tc, driving the transition to a non-superconducting state.
Physicists from Rutgers University and the University of Tokyo unveil a superconducting material with unprecedented properties, reaching quantum criticality in its natural state. The discovery challenges current understanding of materials science and may lead to breakthroughs in future superconductors and computer electronics.
Researchers at UT Dallas have developed a novel technology called biscrolling, which enables the production of yarns containing up to 95% unspinnable guest powders and nanofibers. These yarns exhibit remarkable properties, including superconductivity, energy storage, and catalytic activity.
Researchers at UBC have made a groundbreaking discovery linking high-temperature superconductivity to 'incoherent excitations' in copper oxides. The study reveals that electrons behave as independent particles before becoming ill-defined many-body entities, shedding light on the electronic response of these materials.
Researchers investigated the effect of heat treatment on the superconducting properties of Ag-doped Sr0.6K0.4Fe2As2 compounds and found that increasing heat treatment temperature improves Jc, while Tc remains unaffected. The study demonstrated that Ag doping enhances Jc at higher sinter temperatures.
The University of Houston has partnered with ABB and SuperPower to develop a superconducting magnet energy storage system that could revolutionize the US electrical grid. The project aims to create an affordable, large-scale energy storage system using magnetic fields in superconducting coils.
A team of researchers led by Pitt's Jeremy Levy will combine semiconductor and superconducting materials to create a single material for quantum computers, tackling challenges like information loss and quantum simulation. The $7.5 million MURI award aims to accelerate research and application development.
Researchers have discovered a diamond-like material BC5 with exceptional hardness and resistance to fracture, as well as superconducting properties. The material's unique structure and properties make it suitable for designing new superconducting nano-electromechanical systems and high-pressure devices.
A team of scientists created nano-patterned superconducting thin films that can change their electrical resistance in response to an external magnetic field. The discovery could lead to new electronic devices, as the material's fluctuating response to a magnetic field could result in switchable superconducting wires.
The new superconducting cable can transport up to 110 MVA of electricity, a fivefold increase over conventional copper cables, reducing energy loss by 50-70% and saving significant amounts of CO2 emissions. The technology has the potential to reduce primary energy consumption by 10-15%.
Researchers at NIST have developed a new type of control device that can tune interactions between quantum bits (qubits) and quantum buses, potentially speeding up the development of practical quantum computers. The 'dimmer switch' enables flexible control over interactions in intricate networks.
High-temperature superconducting wires can transmit up to 10 times more power than traditional copper cables without significant losses. This technology has the potential to revolutionize electricity generation, transmission, and use, reducing carbon emissions and offsetting the emission of equivalent conventional power plants.
Researchers have successfully fabricated nanoscale molecular superconducting wires using organic salts, opening up new possibilities for energy and electronics applications. The discovery could lead to the development of novel materials that can work at higher temperatures.
Researchers at Brown University have observed a quantum-level phenomenon where electrons form odd, fluctuating magnetic waves in superconducting materials. These waves are promoted by superconductivity and disappear when more magnetic energy is applied.
Researchers are working on improving the efficiency of superconducting radio frequency (SRF) cavities made of niobium to accelerate beams of subatomic particles in next-generation high-energy physics experiments. This could lead to powerful accelerators that open new frontiers in physics without increasing size.
A team of scientists has discovered a general trend in the behavior of metal hydrides ScH3, YH3, and LaH3, finding that superconducting states are strongest when materials are weakest. The researchers also found differences between the three metal hydrides, with a secondary superconducting phase present in YH3 but absent in ScH3 and LaH3.
Scientists have modeled three hydrogen-dense metal alloys and found that superconductivity can be induced by high pressure, with transition temperatures as low as -423°F. The study suggests that the superconducting state comes from electron interaction with vibrational energy through the lattice.
The project aims to manufacture a transformer boosting power grid reliability, reducing energy losses by one-third and eliminating CO2 emissions. The superconducting wire will have a unique property allowing electricity to flow without resistance while limiting current flow in sudden spikes.
Clemson University is part of a five-year, $3 million Air Force Office of Scientific Research award to explore carbon nanotube-based superconductors. The team aims to develop composite wires that can replace inefficient copper wiring in power lines.
Using precision techniques, researchers pinpointed a single copper-oxide layer as the key to superconductivity in a material. The discovery could lead to precision engineering of ultrathin films with tunable superconductivity for higher-efficiency electronic devices.
The first US-built superconducting radiofrequency niobium cavity to meet the ILC's stringent performance goals has been successfully tested at Jefferson Lab. The cavity, manufactured by Advanced Energy Systems, exceeded the specification of 35 MV/m with an accelerating gradient of 41 megavolts per meter.
Researchers confirm the existence of a 'phase-incoherent' superconductor at higher temperatures, providing insight into the conditions necessary for superconductivity to occur. The study's findings may help scientists develop practical devices such as zero-loss power transmission lines.
UBC researchers have found that single-band Hubbard physics fails to explain certain conditions in high-temperature superconductors. The study suggests new theoretical approaches may be needed, revealing potentially new or less-bizarre behavior.
Researchers at NIST have discovered that reducing mechanical strain at grain boundaries significantly improves high-temperature superconductor performance. By mitigating the effect of granularity, they could enable more efficient electrical transmission lines, increased power grid reliability, and advanced cancer treatment facilities.
Physicists at the University of Texas at Austin have developed the thinnest superconducting metal layer made from lead, measuring only two atoms thick. This achievement lays the groundwork for future innovations in superconductor technologies.
A team of researchers at the University of Illinois has demonstrated macroscopic quantum tunneling in ultrathin superconducting nanowires. They observed a process called quantum phase slip, where packs of electrons tunnel together from higher to lower current states. This finding provides evidence that quantum mechanics governs large s...
Physicists at Ames Laboratory have demonstrated that the superconductivity mechanism in iron-arsenide superconductors is unique compared to all other known classes of superconductors. The team found a power-law variation of London penetration depth, suggesting electron pairing different from any other known superconductor.
Researchers at NRL propose a new paradigm for high-temperature superconductivity in iron-based materials, where string magnetism plays a crucial role. Theoretical models suggest that Fe ions are always magnetic but the observable moment is strongly reduced due to antiferromagnetic domains.