https://phys.org/physics-news/superconductivity en-us The latest news on superconductivity In a study published Nov. 24 in Matter, researchers led by Prof. Luo Jianlin from the Institute of Physics of the Chinese Academy of Sciences (CAS) have provided solid evidence that LK99 is non-superconducting, thus disproving earlier superconductivity claims. https://phys.org/news/2023-11-myth-room-temperature-superconductivity-lk-.html Superconductivity Tue, 28 Nov 2023 08:44:03 EST news620383441 Researchers at the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) in Hamburg, Germany, have shown that a previously demonstrated ability to turn on superconductivity with a laser beam can be integrated on a chip, opening up a route toward opto-electronic applications. https://phys.org/news/2023-11-photo-induced-superconductivity-chip.html Optics & Photonics Superconductivity Mon, 13 Nov 2023 11:33:03 EST news619097581 A study published in March claiming the discovery of a superconductor that works at room temperature—a scientific holy grail—has been retracted by the high-profile journal Nature at the request of most of its authors. https://phys.org/news/2023-11-room-temperature-superconductor-retracted-nature.html Superconductivity Wed, 08 Nov 2023 10:52:07 EST news618663121 Cooper pairs are pairs of electrons in superconducting materials that are bound to each other at low temperatures. These electron pairs are at the root of superconductivity, a state where materials have zero resistance at low temperatures due to quantum effects. As quantum systems that can be relatively large and easy to manipulate, superconductors are highly useful for the development of quantum computers and other advanced technologies. https://phys.org/news/2023-11-cooper-pair-hybrid-quantum-dot.html Superconductivity Quantum Physics Mon, 06 Nov 2023 12:10:01 EST news618486612 High-temperature cuprate superconductors are a broad class of materials that exhibit some unique characteristics. Due to their distinctive properties, these materials exhibit the highest superconducting temperatures reported to date under ambient pressure. https://phys.org/news/2023-11-reveals-high-superconducting-critical-temperatures.html Superconductivity Quantum Physics Wed, 01 Nov 2023 11:30:01 EDT news618055876 Quantum physicists at Delft University of Technology have shown that it's possible to control and manipulate spin waves on a chip using superconductors for the first time. These tiny waves in magnets may offer an alternative to electronics in the future. The study, published in Science, primarily gives physicists new insight into the interaction between magnets and superconductors. https://phys.org/news/2023-10-magnets-superconductors.html Superconductivity Quantum Physics Thu, 26 Oct 2023 17:28:02 EDT news617560081 In a study published in Advanced Science, researchers led by Prof. Zhong Guohua from the Shenzhen Institute of Advanced Technology (SIAT) of the Chinese Academy of Sciences (CAS) have made a prediction regarding superconductivity above 100 K within carbon-cage networks. https://phys.org/news/2023-10-advance-high-temperature-superconductivity-carbon-materials.html Superconductivity Thu, 26 Oct 2023 09:50:02 EDT news617532601 Researchers at the National Institute of Standards and Technology (NIST) and their colleagues have built a superconducting camera containing 400,000 pixels—400 times more than any other device of its type. https://phys.org/news/2023-10-scientists-highest-resolution-single-photon-superconducting-camera.html Optics & Photonics Superconductivity Wed, 25 Oct 2023 11:00:02 EDT news617447660 The Quantum Systems Accelerator (QSA) pioneers studies to build and co-design the next generation of programmable quantum devices. An interdisciplinary team of scientists from QSA institutions, Lawrence Berkeley National Laboratory (Berkeley Lab), and the University of California, Berkeley (UC Berkeley), in collaboration with Los Alamos National Laboratory, conducted a series of experiments with a new type of layered 2D metal, finding connections in electronic behavior that might potentially be useful for fabricating complex superconducting quantum processors. https://phys.org/news/2023-10-itinerant-magnetism-superconductivity-exotic-2d.html Superconductivity Quantum Physics Mon, 23 Oct 2023 23:50:01 EDT news617269177 Understanding how energy moves in materials is fundamental to the study of quantum phenomena, catalytic reactions, and complex proteins. Measuring how energy moves involves shining special X-ray light onto a sample to start a reaction. https://phys.org/news/2023-10-scientists-amplify-superconducting-sensor-array.html Superconductivity Quantum Physics Mon, 23 Oct 2023 09:54:09 EDT news617273645 Superconductivity is the ability of some materials to conduct a direct electrical current (DC) with almost no resistance. This property is highly sought after and favorable for various technological applications, as it could boost the performance of different electronic and energy devices. https://phys.org/news/2023-10-strategy-light-driven-superconductivity-kc.html Condensed Matter Superconductivity Sun, 15 Oct 2023 09:10:01 EDT news616406799 Researchers at the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) in Hamburg, Germany, have long been exploring the effect of using tailored laser drives to manipulate the properties of quantum materials away from equilibrium. One of the most striking demonstrations of these physics has been in unconventional superconductors, where signatures of enhanced electronic coherences and super-transport have been documented in the resulting non-equilibrium states. https://phys.org/news/2023-10-widely-tuneable-terahertz-lasers-boost.html Condensed Matter Superconductivity Thu, 12 Oct 2023 11:31:03 EDT news616329061 On April 8, 1911, Dutch physicist Heike Kamerlingh Onnes scribbled in pencil an almost unintelligible note into a kitchen notebook: "near enough null." https://phys.org/news/2023-10-superconductivity-room-temperature-elusive-century.html Superconductivity Wed, 04 Oct 2023 11:14:04 EDT news615636842 Superconductors are materials that offer zero electric resistance to the flow of current on being cooled down below a certain critical temperature. Typically, superconductors have a very low critical temperature, close to absolute zero. However, a class of superconductors, known as high-temperature superconductors (HTS) have a critical temperature above 77 Kelvin, the boiling point of liquid nitrogen. They have been extensively used for the development of superconducting devices in many industries. https://phys.org/news/2023-10-graphene-addition-critical-current-density.html Superconductivity Tue, 03 Oct 2023 13:23:21 EDT news615558197 Imagine a flock of birds as they wheel across the sky: surging into a mass, flowing into ribbons that twist and turn again into fantastic shapes. If you follow one bird within the flock, you can describe its actions, the way it flaps its wings or uses its tail to brake. Yet, even if you could minutely account for the behavior of each individual bird, the shapes and patterns of their collective flight would still evade understanding. https://phys.org/news/2023-10-electrons-strange-metal-world.html Superconductivity Quantum Physics Mon, 02 Oct 2023 15:34:30 EDT news615479664 A collaboration of FLEET researchers from the University of Wollongong and Monash University have reviewed the superconducting diode effect, one of the most fascinating phenomena recently discovered in quantum condensed-matter physics. https://phys.org/news/2023-10-superconducting-diode-effect.html Superconductivity Quantum Physics Mon, 02 Oct 2023 10:46:03 EDT news615462361 In research that could jumpstart interest into an enigmatic class of materials known as quasicrystals, MIT scientists and colleagues have discovered a relatively simple, flexible way to create new atomically thin versions that can be tuned for important phenomena. In work reported in Nature they describe doing just that to make the materials exhibit superconductivity and more. https://phys.org/news/2023-09-physicists-coax-superconductivity-quasicrystals.html Condensed Matter Superconductivity Fri, 29 Sep 2023 05:49:27 EDT news615185359 Humanity stands on the verge of two major revolutions: the boom in 2-dimensional supermaterials like graphene with incredible properties and the introduction of quantum computers with processing power that vastly outstrips that of standard computers. https://phys.org/news/2023-09-particle-graphene.html Superconductivity Quantum Physics Wed, 27 Sep 2023 16:01:05 EDT news615049263 The long-term vision for quantum computing is the ability to leverage millions of noise-free qubits to address selected problems that are hard to solve with classical computers. Application fields that may benefit from this technology include materials synthesis, pharmaceutical drug development, and cybersecurity, to name a few. https://phys.org/news/2023-09-upscaling-si-superconducting-based-quantum-technologies.html Superconductivity Quantum Physics Wed, 27 Sep 2023 10:24:45 EDT news615029079 Picture a nanoscale dance floor full of independently moving particles. When things really start to heat up—or, in this case, cool down—particles partner off, but on opposite sides of the space, "dancing" in synch as if telepathically. https://phys.org/news/2023-09-helium-three-superfluid-particles-pair-space.html Superconductivity Quantum Physics Thu, 21 Sep 2023 11:25:04 EDT news614514301 Quantum computers process information using quantum bits, or qubits, based on fragile, short-lived quantum mechanical states. To make qubits robust and tailor them for applications, researchers from the Department of Energy's Oak Ridge National Laboratory sought to create a new material system. https://phys.org/news/2023-09-advance-topological-superconductors-quantum.html Superconductivity Quantum Physics Wed, 20 Sep 2023 16:40:04 EDT news614446801 In a study published in Matter, researchers led by Prof. Yang Zhaorong and Prof. Hao Ning from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences found that the quasi-one-dimensional charge density wave (CDW) material cupric telluride (CuTe) provides a rare and promising platform for the study of multiple CDW orders and superconductivity under high pressure. https://phys.org/news/2023-09-distinct-density-intricate-interplay-superconductivity.html Condensed Matter Superconductivity Mon, 04 Sep 2023 13:23:49 EDT news613052626 Identifying and understanding experimental signatures of phases of matter is usually a challenging task due to strong electron interactions in a material and can become even harder due to external influences in samples with the presence of impurities or other sources of deformations. Typically, these interactions between the electrons in a material give rise to fascinating phenomena such as magnetism, superconductivity and electronic nematicity. https://phys.org/news/2023-09-ai-algorithm-microscopic-nematicity-moir.html Condensed Matter Superconductivity Mon, 04 Sep 2023 08:31:51 EDT news613035081 For years, physicists have been trying to explain a quantum phenomenon that occurs in a large class of superconducting materials: Electrons in so-called "strange metals" scatter at high rates in ways affected by temperature. Figuring out why this happens in certain unconventional metals could hold the keys to many quantum material puzzles, including high-temperature superconductivity, long sought after by physicists for a more efficient means of electrical energy transfer. https://phys.org/news/2023-08-sister-compounds-key-quantum-puzzle.html Superconductivity Quantum Physics Thu, 31 Aug 2023 11:09:13 EDT news612698949 Scientists from Skoltech, the Shubnikov Institute of Crystallography, and the Center for High Pressure Science and Technology Advanced Research (HPSTAR) in Beijing, China, are exploring the superconductivity of polyhydrides—compounds of metals and hydrogen formed at high pressure. These compounds are expected to function at higher temperatures than cuprate superconductors. https://phys.org/news/2023-08-tin-hydride-properties-strange-metal.html Superconductivity Wed, 30 Aug 2023 09:11:03 EDT news612605461 Electronic nematic order in kagome materials has thus far been entangled with charge density waves. Now it is finally observed as a stand-alone phase in a titanium-based Kagome metal, a team of researchers led by Boston College physicists reported recently in Nature Physics. https://phys.org/news/2023-08-reveal-electronic-nematicity-density-titanium-based.html General Physics Superconductivity Thu, 24 Aug 2023 11:47:37 EDT news612096452 The so-called superconducting (SC) diode effect is an interesting nonreciprocal phenomenon, occurring when a material is SC in one direction and resistive in the other. This effect has been the focus of numerous physics studies, as its observation and reliable control in different materials could enable the future development of new integrated circuits. https://phys.org/news/2023-08-superconducting-diode-effect-device-based.html Superconductivity Wed, 23 Aug 2023 06:30:01 EDT news611828847 A team led by Prof. He Junfeng from University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), in collaboration with Academician Gao Hongjun's team from CAS and other domestic and international research teams, has discovered the van Hove singularity (VHS) at Fermi level in kagome superconductors and revealed its relationship with superconductivity. Their work was published in Nature Communications on June 28. https://phys.org/news/2023-08-reveal-van-hove-singularity-fermi.html Condensed Matter Superconductivity Tue, 22 Aug 2023 11:57:51 EDT news611924269 The past few weeks have seen a huge surge of interest among scientists and the public in a material called LK-99 after it was claimed to be a superconductor at room temperature and ambient pressure. https://phys.org/news/2023-08-room-temperature-superconductor-lk-quantum.html Superconductivity Mon, 21 Aug 2023 13:59:17 EDT news611845154 Researchers from the Department of Physics at Universität Hamburg, observed a quantum state that was theoretically predicted more than 50 years ago by Japanese theoreticians but so far eluded detection. By tailoring an artificial atom on the surface of a superconductor, the researchers succeeded in pairing the electrons of the so-called quantum dot, thereby inducing the smallest possible version of a superconductor. The work appears in the journal Nature. https://phys.org/news/2023-08-pairing-electrons-artificial-atoms-quantum.html Superconductivity Quantum Physics Thu, 17 Aug 2023 11:13:27 EDT news611489602