Articles tagged with Superconductors
Researchers discovered a new iron arsenide superconductor, CaKFe4As4, with a high superconducting temperature of 35K without dopants, questioning established theories. The material's pristine samples allowed for accurate measurements of the superconducting gap, contradicting previous models.
Louis Taillefer, a Canadian quantum physicist and CIFAR's Director of Quantum Materials program, has made groundbreaking discoveries in experimental low-temperature physics. He was awarded the Simon Memorial Prize for his contributions to understanding quantum materials.
Researchers detected two-fold symmetry in superconductivity of SrxBi2Se3, providing new evidence for its topological superconductor status. The findings are consistent with earlier experiments and suggest nontrivial topological order in the material.
Researchers successfully created atomic metallic hydrogen using diamond anvil cells at extreme pressures, offering potential applications in high-energy storage, superconductors, and rocket propulsion. The discovery could transform various industries, including energy production and space exploration.
Researchers at the University of Cambridge have found a way to trigger graphene's innate ability to act as a superconductor by coupling it with praseodymium cerium copper oxide (PCCO). This breakthrough enhances graphene's potential for industries such as healthcare and electronics. The study suggests that graphene could be used to cre...
Researchers employ a new 'stop-action' technique using laser pulses to measure complex electron interactions in materials. They discovered an unusual form of efficient energy loss at a specific energy level, which may play a role in superconductivity.
Scientists discover Bismuth is superconducting at extremely low temperatures, defying expectations due to its low carrier density. The finding opens new avenues for research into the fundamental laws of superconductivity.
The University of Houston researcher will use the grant to reduce cost and increase performance of superconductor wire production, leading to significant energy savings and reduced greenhouse gas emissions. The project aims to develop technologies that can significantly improve industrial motors, helping companies save energy and money...
Researchers use laser tweezers to control and arrange Abrikosov vortices in a superconductor, creating an AV-pattern. This technique has potential applications in quantum computation and optically controlled rapid single flux quantum logic elements.
Researchers at Caltech have confirmed that the pseudogap phase represents a new state of matter with properties different from the superconducting state. The discovery breaks nearly all spatial symmetries, providing clues about the origin of high-temperature superconductors.
Ames Laboratory scientists investigated the properties of iron-based superconducting materials, finding that transition temperature and magnetic field penetration depth depend on composition and disorder. The study provides new knowledge on unconventional superconductivity and will aid in discovering high-temperature superconductors.
Researchers have developed a way to increase the amount of electrical current an iron-based material can carry while maintaining its superconducting properties and raising its critical temperature. The method uses low-energy proton bombardment to introduce defects in the material's crystal structure, pinning magnetic vortices and impro...
Researchers found that local electron pairs form a 'superfluid' that flows without resistance, enabling the material to conduct electricity at unusually high temperatures. This discovery challenges standard theory of superconductivity and paves the way for engineering materials that become superconducting at room temperature.
Researchers at IBS Centre for Correlated Electron Systems have revised existing theories on iron-based superconductors. By doping electrons onto the surface of a material, they found no correlation between the transition temperature and the nesting effect, challenging current understanding of these materials.
Researchers at Carnegie Institution have produced a new class of materials blending hydrogen with sodium, which could advance superconductivity and be used for hydrogen-fuel cell storage. The discovery confirms theoretical predictions and opens up possibilities for metallic high-temperature superconductors.
Researchers have discovered a new ferromagnetic superconductor, CsEuFe4As4, where both bulk superconductivity and full ferromagnetism are realized simultaneously. The material exhibits robust SC and FM, with the ferromagnetic ordering demonstrated by field-dependent magnetization.
Scientists simulate cuprates to understand pseudogap phase and superconductivity emergence. A team led by Thomas Maier identified a possible alternative route mediated by magnetic fluctuations, suggesting an alternative mechanism for Cooper pairing in high-temperature superconductors.
Scientists discover high Tc superconductivity at the interface between FeSe and SrTiO3 due to strong electron-phonon coupling. The symmetry of the pairing mechanism is also crucial in determining the binding energy and superconducting transition temperature.
Scientists have developed a new method to image magnetic fields on the nanometer scale at temperatures close to absolute zero. They used quantum sensors in diamond-based microscopes to achieve unrivalled precision in measuring magnetic fields in superconductors.
Researchers directly observed waves in superconductivity for the first time using scanning tunneling microscopes. They found relatively modest wave amplitude, but discovered that tuning different materials could produce more dramatic results.
A team of scientists from Seoul National University and the Center for Correlated Electron Systems has made the first-ever observation of Cooper-pair density waves at an atomic level. The detection was achieved using Scanning Josephson Tunneling Microscopy, allowing researchers to directly measure Cooper-pairs in atomic resolution.
Researchers at Brookhaven National Laboratory have produced direct evidence of a predicted state of electronic matter in superconductors. The discovery, confirmed through the use of scanning tunneling microscopy, reveals periodic variations in Cooper pair density across space, validating the 50-year-old prediction.
Researchers discovered significant deviations from the Critical State Model, revealing unexpected behavior favorable for practical applications. The study suggests using 'trapped field magnets' in various new ways and applications, including replacing expensive low-temperature superconducting magnets with more affordable alternatives.
Researchers at Argonne National Laboratory have discovered that only half the atoms in some iron-based superconductors are magnetic, providing a conclusive demonstration of wave-like properties of metallic magnetism. This finding allows for a clearer understanding of how magnetism induces superconductivity, enabling the development of ...
Researchers have discovered that quantum effects play a crucial role in the superconducting properties of hydrogen sulphide, leading to record-breaking temperatures. The study suggests that symmetrical hydrogen bonds and quantum fluctuations are responsible for the material's high-temperature superconductivity.
A team of Russian scientists has measured the temperature dependences of two energetic gaps in iron-based superconductors, a breakthrough that could help solve questions about their appearance. The discovery confirms the existence of two-gap superconductivity, which was previously doubted, and highlights the complexity of this phenomenon.
Researchers at Rice University have determined that 2D boron is metallic and can transmit electrons with no resistance, making it a promising material for superconductivity. The discovery may lead to breakthroughs in small-scale superconducting circuits.
High-temperature superconductors exhibit two coexisting states, contradicting the competition-based models previously assumed. The study reveals electronic densities are a combination of separate effects, proposing a new model for understanding these materials.
New research finds quantum behavior of hydrogen affects structural properties of hydrogen-rich compounds, which may aid in search for room temperature superconductor. Quantum symmetrisation of hydrogen bond has significant impact on vibrational and superconducting properties.
Research on new unconventional superconductors like K2Cr3As3 and Li1?xFexOHFeSe reveals robust superconductivity and full volume. Weyl semimetal TaP exhibits chiral magnetic states with huge magnetoresistance, triggering further studies.
Researchers have created memory cells using superconductors, enabling read and write operations to take only a few hundred picoseconds. The proposed system encodes data in the value of superconducting current, allowing for fast switching between states.
Researchers have discovered a way to make certain materials superconduct at more than 100 degrees Kelvin, eliminating the need for liquid nitrogen or helium. This breakthrough could lead to new routes and insights into making better superconductors that work at higher temperatures.
Researchers at the University of Waterloo have discovered electronic nematicity in superconducting materials, which can lead to enhanced superconductivity. The study used soft x-ray scattering to probe electron scattering in specific layers, revealing a universal feature in cuprate high-temperature superconductors.
Researchers at the University of Buffalo found that phosphine's superconductivity likely results from the compound decomposing into other products containing phosphorus and hydrogen. This understanding could aid in creating new superconducting materials, which would revolutionize electric power infrastructure by reducing energy waste.
A multidisciplinary team at Cornell has created a three-dimensional gyroidal superconductor made of niobium nitride, which could lead to novel property profiles and transition temperatures. The breakthrough was achieved using organic block copolymers and involves heating, cooling, and reheating the material.
Researchers investigated magnetism's influence on atomic vibrations in iron-pnictide superconductors, finding magnetic fluctuations play a crucial role. The study provides insight into the interaction between magnetism and atomic vibrations, potentially leading to materials that superconduct close to room temperature.
Researchers connected two materials with unusual quantum-mechanical properties through a quantum constriction, enabling clean materials with intriguing quantum-mechanical properties. This collaboration opens up a new research direction for ultrafast and robust electronic networks.
Researchers Mikhail Feigel'man and Lev Ioffe describe pseudogapped superconductors with disorderly atomic structures. Their theory explains how superconducting current density depends on pseudogap width in these materials.
Researchers at HKUST discovered a new type of superconductor, called Ising superconductors, that can withstand strong magnetic fields. These materials have potential applications in quantum computing and may lead to the creation of Majorana fermions.
Aalto researchers discover that electrons in a 'flat band' can carry electrical current, leading to potential breakthroughs in high temperature superconductivity. The key to this phenomenon lies in the quantum metric and Chern number, which measure the spread of electron waves in a crystal.
Researchers at the University of Basel successfully transport electrons from a superconductor through a quantum dot into a metal with normal conductivity. The team measured discrete resonances, confirming theoretical predictions and demonstrating the phenomenon's applicability to quantum technology applications.
Researchers have developed high-temperature superconducting materials that can operate at high magnetic fields, opening a new path to fusion energy. These materials could enable the creation of compact, power-producing reactors capable of producing 500 MW of fusion power.
Researchers at SLAC National Accelerator Laboratory discovered a surprising 3-D effect in a superconducting material, resolving an apparent mismatch in data and charting a new course for understanding electrons in these exotic materials. The study revealed a newly found type of 'charge density wave' closely tied to high-temperature sup...
Researchers have isolated single-layer NbSe2 as a genuine 2D electronic phenomenon exhibiting spatial modulation of electron density and atomic lattice. The material remains a superconductor with critical temperature TC = 1.9 K despite dimensional reduction.
Physicists from France and Russia have discovered magnetic disturbances resembling little oscillating stars in a 2D superconductor layer. These 'nanostars' are caused by a single magnetic atom and are more sustainable than previous observations, bringing us closer to developing quantum computers.
Researchers at Lomonosov Moscow State University have discovered a phenomenon where superconductivity promotes magnetization under certain conditions. This finding could lead to the development of spintronics devices that are more energy-efficient and stable, potentially replacing traditional computing methods.
Scientists at Max Planck Institute for Chemistry and Johannes Gutenberg University Mainz set a new record for superconductivity by observing conventional superconductivity in hydrogen sulfide at -70 degrees Celsius under high pressure. The discovery highlights a potential way to transport current at room temperature with no loss.
A new study reveals an iron-telluride material develops superconductivity without long-range electronic or magnetic order, with a competing disordered magnetic phase. The researchers found that the ordering is extremely local and fleeting, similar to a liquid-like behavior.
Herbert C. Freyhardt, a research professor at the University of Houston, received the International Cryogenic Materials Conference Lifetime Achievement Award for his work in developing type II superconducting materials and promoting the understanding of flux pinning effects.
Theoretical physicists explore effects of breaking Lorentz invariance in ultraviolet region to create renormalizable theories. A holographic superconductor can still be realized in this new gravity without LI.
Researchers at UC San Diego have developed a new method to control electrical transport through high-temperature superconductors, enabling the creation of sophisticated electronic devices capable of measuring tiny magnetic fields in the brain or heart. This breakthrough paves the way for improved satellite communications and novel tech...
Three scientists have been recognized for their groundbreaking discoveries in superconducting materials, including Xianhui Chen, Zachary Fisk, and Zhongxian Zhao. The prize is awarded annually by the Texas Center for Superconductivity to innovators in the field of superconducting materials.
Researchers at Tohoku University have successfully fabricated an atomically thin, high-temperature superconductor film with a Tc of up to 60 K, exceeding that of bulk FeSe. This finding enables the control and tuning of Tc, opening up new avenues for investigating mechanism and developing next-gen nano-scale superconducting devices.
Researchers use precision spectroscopic-imaging scanning tunneling microscope to map out defects, superconductivity, and quantum vortices. Vortex pinning depends on shape of damage tracks and collateral damage, enabling strategic engineering of materials for energy applications.
Researchers have discovered electrons that form pairs but don't reach a superconducting state, a breakthrough that could lead to new materials with room temperature superconductivity. This finding has significant implications for technologies such as high-speed rail and quantum computers.
The University of Houston will lead an Advanced Superconductor Manufacturing Institute to develop low-cost, high-performance superconductors. The consortium aims to address technical obstacles and integrate the technology into existing infrastructure.
Researchers from Finland and Europe have discovered a method to convert heat into spin current in magnetic superconductors, enabling faster data writing processes. This breakthrough has the potential to revolutionize memory technology, making it more efficient and faster.
A research team led by Tohoku University has discovered a new family of molecular superconductors that achieve the highest known critical temperature. The discovery, published in Science Advances, reveals a new state of matter - the Jahn-Teller metal - where balancing molecular and itinerant character leads to maximum Tc.
A team of researchers used various techniques to study niobium diselenide, a material that exhibits short-range charge density wave order and pseudogap behavior across large temperature ranges. They found that increasing temperature or doping leads to the loss of coherent electronic excitations and the emergence of an energy gap.
Researchers expose high-temperature superconductors to record-breaking magnetic fields, revealing unique properties and interactions between electrons. The study paves the way for a new theory of superconductivity, aiming to create room-temperature superconductors without cooling requirements.