糖心视频 - latest science and technology news stories / en-us 糖心视频 internet news portal provides the latest news on science including: 糖心视频ics, 糖心视频, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. 'String breaking' observed in 2D quantum simulator An international team led by Innsbruck quantum physicist Peter Zoller, together with the US company QuEra Computing, has directly observed a gauge field theory similar to models from particle physics in a two-dimensional analog quantum simulator for the first time. The study, published in Nature, opens up new possibilities for research into fundamental physical phenomena. /news/2025-06-2d-quantum-simulator.html Quantum 糖心视频ics Wed, 04 Jun 2025 13:14:49 EDT news668261686 Overlapping moir茅 lattices in 2D materials yield tunable quantum properties and novel atomic motifs A joint research team has successfully developed a two-dimensional (2D) quantum material platform through the superposition of moir茅 lattices. /news/2025-06-overlapping-moir-lattices-2d-materials.html Nanophysics Nanomaterials Tue, 03 Jun 2025 11:39:05 EDT news668169541 糖心视频icists discover an unusual chiral quantum state in a topological material Chirality鈥攖he property of an object that is distinct from its mirror image鈥攈as long captivated scientists across biology, chemistry, and physics. The phenomenon is sometimes called "handedness," because it refers to an object possessing a distinct left- or right-handed form. It is a universal quality that is found across various scales of nature, from molecules and amino acids to the famed double-helix of DNA and the spiraling patterns of snail shells. /news/2025-05-physicists-unusual-chiral-quantum-state.html Condensed Matter Quantum 糖心视频ics Wed, 07 May 2025 16:46:04 EDT news665855161 Kagome quantum magnets achieve spin-valve effects without complex material stacking Recently, a group of researchers discovered a novel way to achieve spin-valve effects using kagome quantum magnets. /news/2025-04-kagome-quantum-magnets-valve-effects.html Condensed Matter Quantum 糖心视频ics Wed, 30 Apr 2025 10:46:02 EDT news665228761 Scientists discover method to restore vanishing electronic patterns in quantum materials A new study published in Nature Communications April 7 could reshape the future of magnetic and electronic technology. Scientists at Rice University have discovered how a disappearing electronic pattern in a quantum material can be revived under specific thermal conditions. The finding opens new doors for customizable quantum materials and in-situ engineering, where devices are manufactured or manipulated directly at their point of use. /news/2025-04-scientists-method-electronic-patterns-quantum.html Condensed Matter Quantum 糖心视频ics Wed, 09 Apr 2025 15:06:40 EDT news663429995 糖心视频icists uncover two superconducting regimes in a Kagome lattice superconductor Superconductivity, which entails an electrical resistance of zero at very low temperatures, is a highly desirable and thus widely studied quantum phenomenon. Typically, this state is known to arise following the formation of bound electron pairs known as Cooper pairs, yet identifying the factors contributing to its emergence in quantum materials has so far proved more challenging. /news/2025-03-physicists-uncover-superconducting-regimes-kagome.html Condensed Matter Superconductivity Thu, 13 Mar 2025 06:30:01 EDT news660905885 Unexpected layer interactions in kagome ferromagnets reveal new magnetic phenomena When it comes to layered quantum materials, current understanding only scratches the surface; so demonstrates a new study from the Paul Scherrer Institute PSI. Using advanced X-ray spectroscopy at the Swiss Light Source SLS, researchers uncovered magnetic phenomena driven by unexpected interactions between the layers of a kagome ferromagnet made from iron and tin. This discovery challenges assumptions about layered alloys of common metals, providing a starting point for developing new magnetoelectric devices and rare-earth-free motors. /news/2025-02-unexpected-layer-interactions-kagome-ferromagnets.html Condensed Matter Quantum 糖心视频ics Tue, 18 Feb 2025 13:16:04 EST news659106961 Metal alloy shows practically no thermal expansion over extremely large temperature interval Most metals expand when their temperature rises. The Eiffel Tower, for example, is about 10 to 15 centimeters taller in summer than in winter due to its thermal expansion. However, this effect is extremely undesirable for many technical applications. /news/2025-02-metal-alloy-thermal-expansion-extremely.html Condensed Matter Mon, 03 Feb 2025 15:47:41 EST news657820057 糖心视频icists measure quantum geometry for first time MIT physicists and colleagues have for the first time measured the geometry, or shape, of electrons in solids at the quantum level. Scientists have long known how to measure the energies and velocities of electrons in crystalline materials, but until now, those systems' quantum geometry could only be inferred theoretically, or sometimes not at all. /news/2024-12-physicists-quantum-geometry.html Condensed Matter Quantum 糖心视频ics Sun, 22 Dec 2024 09:30:01 EST news653660469 Kagome superconductor breaks the rules at record-breaking temperatures Using muon spin rotation at the Swiss Muon Source SmS, researchers at the Paul Scherrer Institute (PSI) have discovered that a quantum phenomenon known as time-reversal symmetry breaking occurs at the surface of the Kagome superconductor RbV3Sb5 at temperatures as high as 175 K. This sets a new record for the temperature at which time-reversal symmetry breaking is observed among Kagome systems. /news/2024-11-kagome-superconductor-temperatures.html Condensed Matter Superconductivity Wed, 06 Nov 2024 04:35:37 EST news650090130 Discovery challenges existing theories of magnetism in kagome metals A discovery by Rice University physicists and collaborators is unlocking a new understanding of magnetism and electronic interactions in cutting-edge materials, potentially revolutionizing technology fields such as quantum computing and high-temperature superconductors. /news/2024-10-discovery-theories-magnetism-kagome-metals.html Condensed Matter Quantum 糖心视频ics Wed, 30 Oct 2024 17:08:06 EDT news649526881 Intrinsic magnetic structure observed for the first time in a kagome lattice A joint research group from China recently achieved the first observation of intrinsic magnetic structures in a kagome lattice by using the highly sensitive magnetic force microscopy (MFM) system of the Steady High Magnetic Field Facility (SHMFF) as well as electron paramagnetic resonance spectroscopy and micromagnetic simulations. /news/2024-09-intrinsic-magnetic-kagome-lattice.html Condensed Matter Wed, 25 Sep 2024 11:01:04 EDT news646480861 Kagome superlattice method offers new way to tune graphene's electronic properties A research team has introduced a novel method for selectively tuning electronic bands in graphene. Their findings, published in 糖心视频ical Review Letters, showcase the potential of artificial superlattice fields for manipulating different types of band dispersions in graphene. /news/2024-08-kagome-superlattice-method-tune-graphene.html Condensed Matter Tue, 27 Aug 2024 11:17:03 EDT news643976221 Validation of superconductor theory: Cooper pairs display wave-like distribution in Kagome metals A superconductivity theory proposed by a W眉rzburg physics team has been validated in an international experiment that showed Cooper pairs display wave-like distribution in Kagome metals. The finding will enable new technological applications such as superconducting diodes. /news/2024-08-validation-superconductor-theory-cooper-pairs.html Condensed Matter Superconductivity Fri, 23 Aug 2024 08:56:08 EDT news643622160 Researchers identify unique phenomenon in Kagome metal In traditional Japanese basket-weaving, the ancient "Kagome" design seen in many handcrafted creations is characterized by a symmetrical pattern of interlaced triangles with shared corners. In quantum physics, the Kagome name has been borrowed by scientists to describe a class of materials with an atomic structure closely resembling this distinctive lattice pattern. /news/2024-07-unique-phenomenon-kagome-metal.html Nanophysics Nanomaterials Tue, 30 Jul 2024 14:09:30 EDT news641567365 Visualizing the boundary modes of the charge density wave in a topological material Charge density waves are quantum phenomena occurring in some materials, which involve a static modulation of conduction electrons and the periodic distortion of the lattice. These waves have been observed in numerous condensed matter materials, including high-temperature superconductors and quantum Hall systems. /news/2024-07-visualizing-boundary-modes-density-topological.html Condensed Matter Quantum 糖心视频ics Wed, 10 Jul 2024 07:30:02 EDT news639672807 Researchers find unexpected excitations in a kagome layered material Researchers from the U.S. Department of Energy Ames National Laboratory have discovered an unexpected chiral excitation in the kagome layered topological magnet TbMn6Sn6. This chiral excitation can be viewed as a localized magnetic swirl or vortex. The team also confirmed the existence of localized flat band magnons, a novel excitation associated with frustrated kagome lattice geometry. /news/2024-06-unexpected-kagome-layered-material.html Condensed Matter Mon, 24 Jun 2024 07:53:03 EDT news638434381 The observation of a Spin Berry curvature-enhanced orbital Zeeman effect in a kagome metal In solid materials, magnetism generally originates from the alignment of electron spins. For instance, in the ferromagnet iron, the overall net magnetization is prompted by the alignment of spins in the same direction. /news/2024-05-berry-curvature-orbital-zeeman-effect.html Condensed Matter Fri, 17 May 2024 09:43:53 EDT news635157822 Method milestone for quantum physics: Rapid test for topological 2D materials Topological quantum materials are hailed as a cornerstone of future technological advancements. Yet, validating their exceptional qualities has always been a lengthy process. /news/2024-05-method-milestone-quantum-physics-rapid.html Condensed Matter Quantum 糖心视频ics Thu, 16 May 2024 10:16:13 EDT news635073368 Spectral evidence found for Dirac spinons in a kagome lattice antiferromagnet A new study, published in a recent issue of Nature 糖心视频ics, sheds light on the long-anticipated emergence of quasiparticles, akin to the famous Dirac particles obeying the relativistic Dirac equation. These quasiparticles, known as Dirac spinons, were theorized to exist within a novel quantum state called a quantum spin liquid state. /news/2024-05-spectral-evidence-dirac-spinons-kagome.html Condensed Matter Quantum 糖心视频ics Mon, 13 May 2024 09:29:03 EDT news634811341 糖心视频icists discover new way to make strange metal By tinkering with a quantum material characterized by atoms arranged in the shape of a sheriff's star, MIT physicists and colleagues have unexpectedly discovered a new way to make a state of matter known as a strange metal. Strange metals are of interest for their unusual physics and because they have been found in the high-temperature superconductors key to a variety of applications. /news/2024-05-physicists-strange-metal.html Condensed Matter Quantum 糖心视频ics Wed, 01 May 2024 10:20:04 EDT news633777602 When does a conductor not conduct? Switching a 2D metal-organic framework from an insulator to a metal An Australian-led study has found unusual insulating behavior in a new atomically-thin material鈥攁nd the ability to switch it on and off. /news/2024-04-conductor-2d-metal-framework-insulator.html Condensed Matter Mon, 29 Apr 2024 10:40:01 EDT news633604908 Weird electron behavior gets even weirder: Charge fractionalization observed spectroscopically A research team led by the Paul Scherrer Institute has spectroscopically observed the fractionalization of electronic charge in an iron-based metallic ferromagnet. Experimental observation of the phenomenon is not only of fundamental importance. Since it appears in an alloy of common metals at accessible temperatures, it holds potential for future exploitation in electronic devices. The discovery is published in the journal Nature. /news/2024-03-weird-electron-behavior-weirder-fractionalization.html Condensed Matter Quantum 糖心视频ics Wed, 06 Mar 2024 12:29:06 EST news628950541 When the music changes, so does the dance: Controlling cooperative electronic states in kagome metals Playing a different soundtrack is, physically speaking, only a minute change of the vibration spectrum, yet its impact on a dance floor is dramatic. People long for this tiny trigger, and as a salsa changes to a tango completely different collective patterns emerge. /news/2024-02-music-cooperative-electronic-states-kagome.html Condensed Matter Quantum 糖心视频ics Thu, 29 Feb 2024 10:31:03 EST news628425061 Hall effect uncovers hidden symmetry in spin-ice 糖心视频icists from the University of Augsburg succeeded in distinguishing chiral orders with similar magnetization but an opposite sense of rotation through electrical measurements at low temperatures. This is relevant for fundamental research on complex magnets and possible applications for magnetic data storage. The results were published in Nature 糖心视频ics. /news/2024-02-hall-effect-uncovers-hidden-symmetry.html Condensed Matter Quantum 糖心视频ics Wed, 07 Feb 2024 10:48:23 EST news626525300 Exploring new physics arising from electron interactions in semiconductor moir茅 superlattices Semiconductor moir茅 superlattices are fascinating material structures that have been found to be promising for studying correlated electron states and quantum physics phenomena. These structures, made up of artificial atom arrays arranged in a so-called moir茅 configuration, are highly tunable and characterized by strong electron interactions. /news/2024-02-exploring-physics-electron-interactions-semiconductor.html Condensed Matter Sun, 04 Feb 2024 08:20:01 EST news626091191 New study validates method for guided discovery of 3D flat-band materials Rice University scientists have discovered a first-of-its-kind material, a 3D crystalline metal in which quantum correlations and the geometry of the crystal structure combine to frustrate the movement of electrons and lock them in place. /news/2024-01-validates-method-discovery-3d-flat.html Condensed Matter Quantum 糖心视频ics Mon, 29 Jan 2024 13:43:03 EST news625758181 Researchers demonstrate how magnetism can be actively changed by pressure Magnetism occurs depending on how electrons behave. For example, the elementary particles can generate an electric current with their charge and thereby induce a magnetic field. However, magnetism can also arise through the collective alignment of the magnetic moments (spins) in a material. What has not been possible until now, however, is to continuously change the type of magnetism in a crystal. /news/2023-12-magnetism-pressure.html Condensed Matter Wed, 20 Dec 2023 08:54:04 EST news622284841 糖心视频icists trap electrons in a 3D crystal for the first time Electrons move through a conducting material like commuters at the height of Manhattan rush hour. The charged particles may jostle and bump against each other, but for the most part, they're unconcerned with other electrons as they hurtle forward, each with their own energy. /news/2023-11-physicists-electrons-3d-crystal.html Condensed Matter Quantum 糖心视频ics Wed, 08 Nov 2023 12:40:07 EST news618669604 Topological materials open a new pathway for exploring spin hall materials A group of researchers have made a significant breakthrough which could revolutionize next-generation electronics by enabling non-volatility, large-scale integration, low power consumption, high speed, and high reliability in spintronic devices. /news/2023-09-topological-materials-pathway-exploring-hall.html Condensed Matter Thu, 21 Sep 2023 09:45:23 EDT news614508321