/ en-us Â鶹ÒùÔº internet news portal provides the latest news on science including: Â鶹ÒùÔºics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. A research team led by Kyushu University has developed a new fabrication method for energy-efficient magnetic random-access memory (MRAM) using a new material called thulium iron garnet (TmIG) that has been attracting global attention for its ability to enable high-speed, low-power information rewriting at room temperature. The team hopes their findings will lead to significant improvements in the speed and power efficiency of high-computing hardware, such as that used to power generative AI. /news/2025-10-method-energy-efficient-memory-devices.html Condensed Matter Fri, 10 Oct 2025 05:00:07 EDT news679160942 Magnetic materials have been known since ancient times and play an important role in modern society, where the net magnetic order offers routes to energy harvesting and data processing. It is the net magnetic moment of ferromagnets that has so far been key to their applications, with an alternative type of magnetic material, the antiferromagnet, deemed "useless" by their discoverer Louis Néel in his Nobel Prize lecture. /news/2025-10-nanoscale-ray-imaging-reveals-bulk.html General Â鶹ÒùÔºics Condensed Matter Thu, 09 Oct 2025 08:52:03 EDT news679218721 Typically, the charge of electrons is used to store and process information in electronics-based devices. In spintronics, the focus is instead on the magnetic moment or on magnetic vortices, so-called skyrmions—the goal is smaller, faster, and more sustainable computers. To further increase storage density, skyrmions will not only be two-dimensional in the future, but will also conquer the third dimension. /news/2025-10-dimension-storage-physicists-hybrid-skyrmion.html Condensed Matter Quantum Â鶹ÒùÔºics Mon, 06 Oct 2025 12:50:05 EDT news678973522 An international team of researchers from Forschungszentrum Jülich (Germany), Tohoku University (Japan), and École Polytechnique de Montréal (Canada) has made a significant discovery in semiconductor science by revealing the remarkable spin-related material properties of Germanium-Tin (GeSn) semiconductors. /news/2025-10-harnessing-gesn-semiconductors-tomorrow-quantum.html Condensed Matter Quantum Â鶹ÒùÔºics Mon, 06 Oct 2025 12:07:04 EDT news678971222 Ferrimagnets are a special type of magnet where different atoms' magnetic moments partially cancel each other out, creating a rich internal structure. They are widely used in technologies from magneto-optical devices to spin-based electronics. /news/2025-09-ferrimagnet-bosonic-semiconductors.html Condensed Matter Thu, 25 Sep 2025 09:40:01 EDT news678011590 In a world-first, researchers from the Femtosecond Spectroscopy Unit at the Okinawa Institute of Science and Technology (OIST) have directly observed the evolution of the elusive dark excitons in atomically thin materials, laying the foundation for new breakthroughs in both classical and quantum information technologies. /news/2025-09-dark-valleytronics-excitons-atomically-thin.html Condensed Matter Quantum Â鶹ÒùÔºics Thu, 25 Sep 2025 09:21:31 EDT news678010886 When you shine a flashlight into a glass of water, the beam bends. That simple observation, familiar since ancient times, hides one of the oldest puzzles in physics: what really happens to the momentum of light when it enters a medium? /news/2025-09-century-puzzle-momentum.html Optics & Photonics Quantum Â鶹ÒùÔºics Wed, 24 Sep 2025 07:40:01 EDT news677852829 Transistors, the building blocks of modern electronics, are typically made of silicon. Because it's a semiconductor, this material can control the flow of electricity in a circuit. But silicon has fundamental physical limits that restrict how compact and energy-efficient a transistor can be. /news/2025-09-magnetic-transistor-energy-efficient-electronics.html Condensed Matter Tue, 23 Sep 2025 13:10:04 EDT news677851238 The field of ultrafast magnetism explores how flashes of light can manipulate a material's magnetization in trillionths of a second. In the process called all-optical switching (AOS), a single laser pulse of several femtoseconds (≈10-15 seconds) duration flips tiny magnetic regions without the need for an externally applied magnetic field. /news/2025-09-ultrafast-magnetization-boundary-previous-optical.html Condensed Matter Optics & Photonics Tue, 23 Sep 2025 10:42:04 EDT news677842922 A research team from the University of Chemistry and Technology, Prague (UCT Prague) and the Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences (IOCB Prague) has created and described a new type of photoswitch. The molecule, a thienyl-based acylhydrazone, undergoes an unprecedented "closed-to-open-shell" transformation, where light converts it into a stable diradical. /news/2025-09-chemists-switchable-magnets-hours.html Analytical Chemistry Materials Science Fri, 19 Sep 2025 00:30:01 EDT news677345764 Spintronics devices will be key to realizing faster and more energy-efficient computers. To give us a better understanding of how to make them, a Kobe University team now showed how different manufacturing techniques influence the material properties of a key component. /news/2025-09-spintronics-device-atomic-interface.html Condensed Matter Thu, 18 Sep 2025 10:50:05 EDT news677410295 Spintronics is an emerging field that leverages the spin, or the intrinsic angular momentum, of electrons. By harnessing this quantum-relativistic property, researchers aim to develop devices that store and transmit information faster, more efficiently, and at higher data densities, potentially making devices much smaller than what is possible today. These advances could drive next-generation memory, sensors, and even quantum technologies. /news/2025-09-advanced-ray-technique-enables-magnon.html Condensed Matter Wed, 10 Sep 2025 12:39:06 EDT news676726742 Spintronics, or spin-electronics, is a revolutionary approach to information processing that utilizes the intrinsic angular momentum (spin) of electrons, rather than solely relying on electric charge flow. This technology promises faster, more energy-efficient data storage and logic devices. A central challenge in fully realizing spintronics has been the development of materials that can precisely control electron spin direction. /news/2025-09-spintronics-chiral-magnetic-nanohelices-room.html Condensed Matter Thu, 04 Sep 2025 14:00:03 EDT news676021142 Polaritons are quasiparticles emerging from strong interactions between light particles (i.e., photons) and matter excitations (e.g., excitons). Over the past few years, researchers have found that these quasiparticles can alter fundamental chemical and physical processes. /news/2025-09-polaritons-enable-tunable-efficient-molecular.html Condensed Matter Optics & Photonics Wed, 03 Sep 2025 07:00:01 EDT news676036386 A research team led by Prof. Shao Dingfu at the Institute of Solid State Â鶹ÒùÔºics, the Hefei Institutes of Â鶹ÒùÔºical Science of the Chinese Academy of Sciences, has unveiled a new mechanism for achieving strong spin polarization using antiferromagnetic metal interfaces. /news/2025-08-interface-antiferromagnetic-tunnel-junctions-path.html Condensed Matter Fri, 29 Aug 2025 13:52:03 EDT news675694321 Advances in spintronics have led to the practical use of magnetoresistive random-access memory (MRAM), a non-volatile memory technology that supports energy-efficient semiconductor integrated circuits. /news/2025-08-antiferromagnets-outperform-ferromagnets-ultrafast-energy.html Condensed Matter Fri, 29 Aug 2025 10:20:05 EDT news675681019 For the first time, chemists at ETH Zurich have successfully used extremely short, rotating flashes of light to measure and manipulate the different movements of electrons in mirror-image molecules. They showed that the chirality of molecules is not just a structural but also an electronic phenomenon. /news/2025-08-electrons-reveal-handedness-attosecond.html Analytical Chemistry Wed, 27 Aug 2025 11:41:04 EDT news675513661 A research team has developed a device principle that can utilize "spin loss," which was previously thought of as a simple loss, as a new power source for magnetic control. /news/2025-08-loss-energy-principle-enable-ultra.html Condensed Matter Mon, 25 Aug 2025 09:11:02 EDT news675331851 Wrinkles can be an asset—especially for next-generation electronics. Rice University scientists have discovered that tiny creases in two-dimensional materials can control electrons' spin with record precision, opening the path to ultracompact, energy-efficient electronic devices. /news/2025-08-wrinkles-atomically-thin-materials-ultraefficient.html Condensed Matter Quantum Â鶹ÒùÔºics Thu, 21 Aug 2025 16:36:04 EDT news675012961 Establishing robust isolated spins on solid surfaces is crucial for fabricating quantum bits or qubits, sensors, and single-atom catalysts. An isolated spin is a single spin that is shielded from external interactions. Because isolated spins can maintain their state for long periods, they are ideal for use as qubits, the basic units of quantum computation, and for ultrafast spintronic memory. /news/2025-08-robust-isolated-quantum-magnetic-substrate.html Nanophysics Nanomaterials Wed, 20 Aug 2025 15:29:52 EDT news674922588 Topological spin textures, spatially organized patterns linked to the intrinsic angular momentum of particles, have proved to be highly advantageous for the development of spintronics and quantum technologies. One of the most studied among these textures are skyrmionic textures, which are two-dimensional and stable patterns of spin orientation. Recently, the study of skyrmionic textures has gained significant attention in the field of optics and photonics, revealing novel physical properties and promising potential applications. /news/2025-08-topological-textures-scientists-micro-materials.html Optics & Photonics Sat, 16 Aug 2025 07:30:02 EDT news674392450 Researchers at the College of Design and Engineering (CDE) at the National University of Singapore (NUS) have developed a supramolecular co-assembly platform that produces chiral soft materials with strong and stable full-color circularly polarized luminescence (CPL) across the visible spectrum, including in red, which has historically been a difficult target. /news/2025-08-strategy-robust-circularly-polarized-luminescence.html Condensed Matter Optics & Photonics Fri, 15 Aug 2025 12:38:59 EDT news674480331 Scientists have turned a longstanding challenge in electronics—material defects—into a quantum-enhanced solution, paving the way for new-generation ultra-low-power spintronic devices. Spintronics, short for "spin electronics," is a field of technology that aims to go beyond the limits of conventional electronics. /news/2025-08-orbital-hall-effect-defects-spintronic.html Condensed Matter Quantum Â鶹ÒùÔºics Fri, 15 Aug 2025 12:35:04 EDT news674480100 Skyrmions are localized, particle-like excitations in materials that retain their structure due to topological constraints (i.e., restrictions arising from properties that remain unchanged under smooth deformations). These quasiparticles, first introduced in high-energy physics and quantum field theory, have since attracted intense interest in condensed matter physics and photonics, owing to their potential as robust carriers for information storage and manipulation. /news/2025-08-experimental-quantum-optical-skyrmions-semiconductor.html Optics & Photonics Quantum Â鶹ÒùÔºics Wed, 13 Aug 2025 08:30:01 EDT news674226132 Van Gogh's "The Starry Night" has stirred the souls of art lovers for over a century. Now, its swirling skies may also speak to physicists, as it echoes the patterns of quantum turbulence. /news/2025-08-quantum-starry-night-physicists-capture.html Quantum Â鶹ÒùÔºics Fri, 08 Aug 2025 05:00:01 EDT news673796597 What occurs during the melting process in two-dimensional systems at the microscopic level? Researchers at Johannes Gutenberg University Mainz (JGU) have explored this phenomenon in thin magnetic layers. /news/2025-08-scientists-capture-real-2d-skyrmion.html Nanophysics Mon, 04 Aug 2025 15:20:02 EDT news673539254 Researchers at Kumamoto University and Nagoya University have developed a new class of two-dimensional (2D) metal-organic frameworks (MOFs) using triptycene-based molecules, marking a breakthrough in the quest to understand and enhance the physical properties of these promising materials. The work is published in the Journal of the American Chemical Society. /news/2025-08-high-quality-crystals-enable-insights.html Analytical Chemistry Materials Science Fri, 01 Aug 2025 09:41:04 EDT news673260062 Crystals and glasses have opposite heat-conduction properties, which play a pivotal role in a variety of technologies. These range from the miniaturization and efficiency of electronic devices to waste-heat recovery systems, as well as the lifespan of thermal shields for aerospace applications. /news/2025-07-hybrid-crystal-glass-materials-meteorites.html General Â鶹ÒùÔºics Soft Matter Mon, 28 Jul 2025 15:59:02 EDT news672937136 A team of researchers at the Max Born Institute and collaborating institutions has developed a reliable method to create complex magnetic textures, known as skyrmion bags, in thin ferromagnetic films. Skyrmion bags are donut-like, topologically rich spin textures that go beyond the widely studied single skyrmions. /news/2025-07-laser-pulses-nanoscale-yield-stable.html Condensed Matter Mon, 28 Jul 2025 12:29:44 EDT news672924576 "God does not play dice." This famous remark by Albert Einstein critiqued the probabilistic nature of quantum mechanics. Paradoxically, his theory of relativity has become an essential tool for understanding the behavior of electrons, the primary subjects of quantum mechanics. /news/2025-07-theory-quantum-relativistic-effects-electron.html General Â鶹ÒùÔºics Quantum Â鶹ÒùÔºics Fri, 25 Jul 2025 09:46:48 EDT news672655599