(National Centre of Competence in Research (NCCR) MARVEL) 2D superconductors have drawn considerable attention both for the fundamental physics they display as well as for potential applications in fields such as quantum computing. Although considerable efforts have been made to identify them, materials with high transition temperatures have been hard to find. Materials featuring both superconductivity and non-trivial band topology have proven even more elusive. A recent Nano Letters paper predicts just such a material in the easily exfoliable, topologically non-trivial semimetal W2N3.
(Aalto University) Researchers demonstrate that magnetism and superconductivity can coexist in graphene, opening a pathway towards graphene-based topological qubits
(DOE/Brookhaven National Laboratory) Scientists mapped the electronic states in an exotic superconductor. The maps point to the composition range necessary for topological superconductivity, a state that could enable more robust quantum computing.
(DOE/Argonne National Laboratory) Researchers at the US Department of Energy's Argonne National Laboratory have discovered a new way to generate 2D superconductivity at an interface of an insulating oxide material, at a higher transition temperature than ever seen before for these materials.
(DOE/SLAC National Accelerator Laboratory) The emergence of 2D puddles of superconductivity within a 3D superconductor may be an example of how 3D superconductors reorganize themselves just before undergoing an abrupt shift into an insulating state. It also suggests a novel and potentially easier way to make 2D materials.
(Tokyo Institute of Technology) Transition metal perovskites oxides exhibit several desirable properties, including high-temperature superconductivity and electrocatalysis. Now, scientists at Tokyo Tech explore the structure and properties of a perovskite oxide, PbFeO3, in anticipation of the unusual charge distribution and exotic magnetic transitions displayed by such systems. They report two of the magnetic transitions, with a distinctive transition above room temperature and look into its causes, opening doors to potential applications in realizing new spintronic devices.
(Max Planck Institute for Chemical Physics of Solids) Researchers at MPI-CPfS have shown, through muon implantation experiments, that in Sr2RuO4 the onset of superconductivity causes spontaneous electrical currents to flow. They did this by showing that the onset of these currents splits from the main superconducting transition under uniaxial stress, which proves that it is a distinct transition, not a measurement artefact.
(Skolkovo Institute of Science and Technology (Skoltech)) An international team of scientists performed theoretical and experimental research on a new high-temperature superconductor, yttrium hydride (YH6). Until 2015, 138 K (or 166 K under pressure) was the record of high-temperature superconductivity. Room-temperature superconductivity, which would have been laughable five years ago, has become a reality. Right now, the whole point is to attain room-temperature superconductivity at lower pressures. Scientists reported that YH6 displays a superconducting transition at ?224 K at 166 GPa.
(Université catholique de Louvain) Trapped tightly between two monolayers of carbon superimposed at a precise angle, electrons interact and can produce superconductivity. This is what UCLouvain's researchers reveal in an article published in Nature. This property allows electric power to circulate without any resistivity, without energy lost, within the nanostructure.
(University of Cambridge) Researchers have identified a new form of magnetism in so-called magnetic graphene, which could point the way toward understanding superconductivity in this unusual type of material.
(Massachusetts Institute of Technology) MIT physicists have created tunable superconductivity in 'magic-angle' trilayer graphene. The structure may reveal conditions necessary for high-temperature superconductivity. The work was led by researchers in the Jarillo-Herrero research group.
(Rice University) A new theory that could explain how unconventional superconductivity arises in a diverse set of compounds might never have happened if physicists Qimiao Si and Emilian Nica had chosen a different name for their 2017 model of orbital-selective superconductivity.
(Shibaura Institute of Technology) Although magnesium diboride (MgB2) is an interesting superconductor made from abundant materials, increasing its critical current density through easily accessible means has proven challenging. In a recent study, scientists form Shibaura Institute of Technology, Japan, used ultrasonication to turn cheap commercial boron into a fine powder. With it, bulk MgB2 with enhanced superconducting properties can be produced, paving the way to affordable superconducting magnets for medical and transportation applications.
(University of the Witwatersrand) New research details the phenomenon of what is called "triplet superconductivity" in diamond. Triplet superconductivity occurs when electrons move in a composite spin state rather than as a single pair. This is an extremely rare, yet efficient form of superconductivity that until now has only been known to occur in one or two other materials, and only theoretically in diamonds.
(ARC Centre of Excellence in Future Low-Energy Electronics Technologies) Quasiparticles die young, lasting far, far less than a second. Why? A new Monash University study finds a culprit beyond the usual suspect (decay into lower energy states). Identification of the new villain--many-body dephasing--may be key to controlling quantum effects such as superconductivity and superfluidity.
(Florida State University) David Larbalestier, the chief materials scientist at the Florida State University-headquartered National High Magnetic Field Laboratory and a Krafft Professor in the Department of Mechanical Engineering at the FAMU-FSU College of Engineering, has been elected a Fellow of the Royal Academy of Engineering.
(University of Houston) A medical robotic hand could allow doctors to more accurately diagnose and treat people from halfway around the world, but currently available technologies aren't good enough to match the in-person experience. Now researchers have reported that they have designed and produced a smart electronic skin and a medical robotic hand capable of assessing vital diagnostic data by using a newly invented rubbery semiconductor.
(Simons Foundation) An infinite chain of hydrogen atoms is just about the simplest bulk material imaginable -- a never-ending single-file line of protons surrounded by electrons. Yet a new computational study combining cutting-edge methods finds that the material boasts remarkable quantum properties, including the chain transforming from a magnetic insulator into a metal. The computational methods used in the study present a significant step toward custom-designing materials with sought-after properties, such as high-temperature superconductivity.
(University of Houston) Researchers from the University of Houston have demonstrated that an inexpensive and non-toxic nanofluid can be used to efficiently recover even heavy oil with high viscosity from reservoirs.
(Penn State) The possibility of achieving room temperature superconductivity took a tiny step forward with a recent discovery by a team of Penn State physicists and materials scientists.