https://phys.org/physics-news/superconductivity en-us The latest news on superconductivity A new study published in Physical Review Letters (PRL) explores the potential of quadratic electron-phonon coupling to enhance superconductivity through the formation of quantum bipolarons. https://phys.org/news/2024-06-high-temperature-superconductivity-exploring-quadratic.html Superconductivity Thu, 20 Jun 2024 07:00:02 EDT news638006587 Researchers from Skoltech, Jilin University and Beijing HPSTAR in China, and their German colleagues have synthesized and studied a new type of hydrogen-rich superconductor. Technically referred to as an A15-type lanthanum superhydride, with the formula La4H23, it shows superconductivity below minus 168 degrees Celsius at a pressure of 1.2 million atmospheres. The research results were published in the National Science Review. https://phys.org/news/2024-06-strange-metal-state-hydrogen-rich.html Superconductivity Mon, 17 Jun 2024 16:58:03 EDT news637862281 For centuries, the transport sector has been one of the biggest contributors to global carbon emissions. To address the problem, many research groups are now actively exploring how technology can help transport systems to become more sustainable and environmentally friendly. https://phys.org/news/2024-06-maglev-machine.html Superconductivity Mon, 17 Jun 2024 13:12:04 EDT news637848721 A new study published in Nature Physics introduces a theory of electron-phonon coupling that is affected by the quantum geometry of the electronic wavefunctions. https://phys.org/news/2024-06-theory-links-quantum-geometry-electron.html Condensed Matter Superconductivity Wed, 12 Jun 2024 06:50:01 EDT news637231783 Scientists have developed the world's strongest iron-based superconducting magnet using AI, in what could be a breakthrough for affordable MRI machines and the future of electrified transport. https://phys.org/news/2024-06-scientists-world-strongest-iron-based.html Superconductivity Fri, 07 Jun 2024 09:14:05 EDT news636970442 In support of the development of large-scale superconducting quantum computers, researchers with the National Institute of Advanced Industrial Science and Technology (AIST), one of the largest public research organizations in Japan, in collaboration with Yokohama National University, Tohoku University, and NEC Corporation, proposed and successfully demonstrated a superconducting circuit that can control many qubits at low temperature. https://phys.org/news/2024-06-superconducting-circuit-qubit-large-scale.html Superconductivity Quantum Physics Mon, 03 Jun 2024 10:23:39 EDT news636629017 Transistors are the basis for microchips and the whole electronic industry. The invention of transistors, by Bardeen and Brattain in 1947, awarded with a Nobel prize, is regarded as one of the most important discoveries of the 20th century. https://phys.org/news/2024-05-unveiling-microscopic-mechanism-superconducting-metallic.html Condensed Matter Superconductivity Tue, 28 May 2024 09:28:40 EDT news636107308 Quantum computers, computing devices that leverage the principles of quantum mechanics, could outperform classical computing on some complex optimization and processing tasks. In quantum computers, classical units of information (bits), which can either have a value of 1 or 0, are substituted by quantum bits or qubits, which can be in a mixture of both 0 and 1 simultaneously. https://phys.org/news/2024-05-tunable-coupling-distant-superconducting-qubits.html Superconductivity Quantum Physics Wed, 22 May 2024 07:30:01 EDT news635524192 Phase transitions in different states of matter, such as the condensation of gases into liquids or the transition from a normal metal to a superconducting state, can be described using Ginzburg-Landau symmetry-breaking theory. However, such a theory is no longer valid for phase transitions in the two-dimensional limit. https://phys.org/news/2024-05-scanning-squid-microscopy-local-magnetic.html Superconductivity Thu, 16 May 2024 14:19:03 EDT news635087941 Superconductors are materials that conduct electricity without resistance and are essential for several technological advancements, which include medical imaging and energy-efficient technology. However, most known superconductors operate under extreme conditions such as extremely low temperatures or high pressures, which limit their practical use. https://phys.org/news/2024-05-coupling-quantum-mechanical-simulations-ai.html Superconductivity Thu, 16 May 2024 10:09:44 EDT news635072982 The world's first Nb3Sn superconducting radio-frequency (SRF) electron accelerator recently achieved stable beam acceleration, reaching a maximum energy of 4.6 MeV with an average macro-pulse beam current exceeding 100 mA. https://phys.org/news/2024-05-nbsn-superconducting-radio-frequency-electron.html General Physics Superconductivity Fri, 10 May 2024 12:21:02 EDT news634562461 With pulses of sound through tiny speakers, Cornell physics researchers have clarified the basic nature of a new superconductor. https://phys.org/news/2024-05-ultrasound-superconductor.html Superconductivity Quantum Physics Thu, 09 May 2024 15:09:15 EDT news634486152 Superfast levitating trains, long-range lossless power transmission, faster MRI machines—all these fantastical technological advances could be in our grasp if we could just make a material that transmits electricity without resistance—or "superconducts"—at around room temperature. https://phys.org/news/2024-05-quantum-breakthrough-perplexing-high-temperature.html Superconductivity Quantum Physics Thu, 09 May 2024 15:07:53 EDT news634486068 A research team consisting of NIMS and the Tokyo University of Science observed charge density waves (CDWs) within niobium diselenide (NbSe2)—a layered compound—at cryogenic temperatures and discovered that they form alternating triangular domains characterized by two distinctive star-shaped and clover-shaped CDW structures. https://phys.org/news/2024-05-alternating-triangular-density-domains-layered.html Condensed Matter Superconductivity Thu, 09 May 2024 10:06:03 EDT news634467961 According to research published in Physical Review Research, a research team led by Prof. Luo Xuan from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences discovered the existence of stacking faults in the lattice structure of topological phononic β-MoB2 single crystal. https://phys.org/news/2024-05-reveals-phonon-properties-mob-crystal.html Condensed Matter Superconductivity Thu, 09 May 2024 09:49:02 EDT news634466941 Science is taking a step forward in the quest for superconductors that will not require ultra-high pressure to function, thanks to multinational research led by Xiaojia Chen at the University of Houston. https://phys.org/news/2024-04-hydride-frontiers-accessible-superconductivity.html Condensed Matter Superconductivity Mon, 29 Apr 2024 12:02:03 EDT news633610921 Interface engineering has been proven to be effective in discovering new quantum states, such as topological states, superconductivity, charge density waves, magnetism, etc., which require atomic-scale heterostructure fabrication. Monolayer FeSe on SrTiO3 substrates has attracted intense interest owing to its remarkable interface-enhanced superconductivity. https://phys.org/news/2024-04-superconductivity-monolayer-fese-srtio8323001-metallic.html Condensed Matter Superconductivity Fri, 26 Apr 2024 13:21:03 EDT news633356462 Entanglement is a form of correlation between quantum objects, such as particles at the atomic scale. The laws of classical physics cannot explain this uniquely quantum phenomenon, yet it is one of the properties that explain the macroscopic behavior of quantum systems. https://phys.org/news/2024-04-scientists-tune-entanglement-array-qubits.html Superconductivity Quantum Physics Wed, 24 Apr 2024 13:02:03 EDT news633182521 In a significant development in the field of superconductivity, researchers at The University of Manchester have successfully achieved robust superconductivity in high magnetic fields using a newly created one-dimensional (1D) system. This breakthrough offers a promising pathway to achieving superconductivity in the quantum Hall regime, a longstanding challenge in condensed matter physics. https://phys.org/news/2024-04-scientists-dimensional-superconductor.html Superconductivity Wed, 24 Apr 2024 11:00:01 EDT news633168329 In some materials, spins form complex magnetic structures within the nanometer and micrometer scale in which the magnetization direction twists and curls along specific directions. Examples of such structures are magnetic bubbles, skyrmions, and magnetic vortices. https://phys.org/news/2024-04-spintronics-path-room-temperature-swirling.html Condensed Matter Superconductivity Wed, 17 Apr 2024 13:10:06 EDT news632578201 Unconventional superconducting states are states of superconductivity rooted in physical processes that do not conform with the conventional theory of superconductivity, namely Bardeen, Cooper and Schrieffer (BCS) theory. These states are characterized by close interactions between magnetism and superconductivity. https://phys.org/news/2024-04-spontaneous-emergence-1d-superconducting-stripes.html Superconductivity Mon, 08 Apr 2024 09:39:39 EDT news631787972 An international team including researchers from the University of Würzburg has succeeded in creating a special state of superconductivity. This discovery could advance the development of quantum computers. The results are published in Nature Physics. https://phys.org/news/2024-04-stable-superconductor-magnetism.html Superconductivity Thu, 04 Apr 2024 09:43:02 EDT news631442581 Research often unfolds as a multistage process. The solution to one question can spark several more, inspiring scientists to reach further and look at the larger problem from several different perspectives. Such projects can often be the catalyst for collaborations that leverage the expertise and capabilities of different teams and institutions as they grow. https://phys.org/news/2024-03-1t-phase-tantalum-disulfide-scientists.html Superconductivity Quantum Physics Fri, 22 Mar 2024 11:32:04 EDT news630325921 Weak fluctuations in superconductivity, a precursor phenomenon to superconductivity, have been successfully detected by a research group at the Tokyo Institute of Technology (Tokyo Tech). This breakthrough was achieved by measuring the thermoelectric effect in superconductors over a wide range of magnetic fields and over a wide range of temperatures, from much higher than the superconducting transition temperature to very low temperatures near absolute zero. The results of this study were published online in Nature Communications on March 16, 2024. https://phys.org/news/2024-03-discovery-hidden-quantum-critical-dimensional.html Superconductivity Quantum Physics Fri, 22 Mar 2024 10:29:44 EDT news630322178 Researchers at the University of Bayreuth have made a significant scientific breakthrough by identifying new yttrium-hydrogen compounds, a discovery that has serious implications for research on high-pressure superconductivity. High-pressure superconductivity refers to the property of materials to become superconducting, which means they conduct electrical current without resistance when exposed to certain pressure conditions. The study is published in Science Advances. https://phys.org/news/2024-03-yttrium-hydrogen-compounds-implications-high.html Condensed Matter Superconductivity Thu, 14 Mar 2024 09:59:13 EDT news629629151 Scientists from Ames National Laboratory have identified the first unconventional superconductor with a chemical composition also found in nature. Miassite is one of only four minerals found in nature that act as a superconductor when grown in the lab. The team's investigation of miassite revealed that it is an unconventional superconductor with properties similar to high-temperature superconductors. https://phys.org/news/2024-03-scientists-reveal-unconventional-superconductor-mineral.html Superconductivity Wed, 13 Mar 2024 11:03:50 EDT news629546571 In particle colliders that reveal the hidden secrets of the tiniest constituents of our universe, minute particles leave behind extremely faint electrical traces when they are generated in enormous collisions. Some detectors in these facilities use superconductivity—a phenomenon in which electricity is carried with zero resistance at low temperatures—to function. https://phys.org/news/2024-03-particle-detectors-boost-device-superconductivity.html Superconductivity Mon, 11 Mar 2024 17:19:03 EDT news629396341 The particle accelerators that enable high-energy physics and serve many fields of science, such as materials, medical, and fusion research, are driven by superconducting magnets that are, to put it simply, quite finicky. https://phys.org/news/2024-03-magnet-meltdowns.html General Physics Superconductivity Mon, 11 Mar 2024 15:11:04 EDT news629388661 Electronic states that resemble molecules and are promising for use in future quantum computers have been created in superconducting circuits by physicists at RIKEN. https://phys.org/news/2024-03-quantum-mechanical-molecules-superconducting-devices.html Superconductivity Quantum Physics Mon, 11 Mar 2024 10:32:03 EDT news629371921 In the predawn hours of Sept. 5, 2021, engineers achieved a major milestone in the labs of MIT's Plasma Science and Fusion Center (PSFC), when a new type of magnet, made from high-temperature superconducting material, achieved a world-record magnetic field strength of 20 tesla for a large-scale magnet. That's the intensity needed to build a fusion power plant that is expected to produce a net output of power and potentially usher in an era of virtually limitless power production. https://phys.org/news/2024-03-high-temperature-superconducting-magnets-ready.html Superconductivity Plasma Physics Mon, 04 Mar 2024 11:52:12 EST news628775519