/ 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. In the realm of physics, synthetic dimensions (SDs) have emerged as one of the frontiers of active research, offering a pathway to explore phenomena in higher-dimensional spaces, beyond our conventional 3D geometrical space. The concept has garnered significant attention, especially in topological photonics, due to its potential to unlock rich physics inaccessible in traditional dimensions. /news/2024-03-team-synthetic-dimension-dynamics.html Optics & Photonics Tue, 19 Mar 2024 16:12:03 EDT news630083521 Researchers at the University of Tsukuba and NIMS have observed a novel Hall effect wherein the deflection direction of current varies according to the current flow direction. Onsager's reciprocal theorem, a fundamental theorem in materials science, asserts the impossibility of such a phenomenon. However, the researchers found that the observed phenomenon could be explained without contradicting the reciprocal theorem by assuming an unconventional magnetic arrangement. /news/2023-12-discovery-hall-effect-violate-onsager.html Condensed Matter Thu, 14 Dec 2023 11:07:44 EST news621774463 On the dream list of many condensed matter physicists is observing fractionalization, the phenomena of a collective state of electrons carrying a charge that is a fraction of the electron charge, without a magnetic field. /news/2023-10-physicists-fractionalization-magnetic-field.html Condensed Matter Quantum Â鶹ÒùÔºics Tue, 03 Oct 2023 11:18:00 EDT news615550673 Scientists and engineers keep developing ever faster and more powerful technological devices. But there is a need for even faster and more efficient electronics. A promising route is to take advantage of terahertz waves, a less-explored part of the electromagnetic spectrum nestled between the infrared and microwave regions. Terahertz waves are uniquely sensitive to charge carriers in conducting systems, proving a powerful probe to understand the magnetic properties of new materials. /news/2023-09-nonrelativistic-nonmagnetic-mechanism-generating-terahertz.html Optics & Photonics Quantum Â鶹ÒùÔºics Thu, 14 Sep 2023 12:41:41 EDT news613914098 Breakthroughs in modern microelectronics depend on understanding and manipulating the movement of electrons in metal. Reducing the thickness of metal sheets to the order of nanometers can enable exquisite control over how the metal's electrons move. By doing so, one can impart properties that aren't seen in bulk metals, such as ultrafast conduction of electricity. Now, researchers from Osaka University and collaborating partners have synthesized a novel class of nanostructured superlattices. This study enables an unusually high degree of control over the movement of electrons within metal semiconductors, which promises to enhance the functionality of everyday technologies. /news/2022-08-simple-technique-ushers-long-sought-class.html Nanomaterials Wed, 31 Aug 2022 11:00:07 EDT news581153932 A RMIT-led, international collaboration published this week has observed large in-plane anisotropic magnetoresistance (AMR) in a quantum spin Hall insulator and the spin quantization axis of the edge states can be well-defined. /news/2021-11-quantifying-wte2-future-spintronics.html Nanophysics Wed, 03 Nov 2021 10:09:29 EDT news555152966 Emerging quantum materials can be defined by topology and strong electron correlations, although their applications in experimental systems are relatively limited. Weyl semimetals incorporating magnetism offer a unique and fertile platform to explore emerging phenomena in developing topological matter and topological spintronics. The triangular antiferromagnet Mn3Sn exhibits many exotic physical properties as an antiferromagnetic (AFM) Weyl semimetal (WSM), including an attractively large spontaneous Hall effect. /news/2020-09-kondo-physics-antiferromagnetic-weyl-semimetal.html General Â鶹ÒùÔºics Condensed Matter Tue, 08 Sep 2020 09:20:04 EDT news518770502 Over the last decade, the field of condensed matter physics has experienced a golden age with the discovery of new materials and properties, and related technologies being developed at breakneck speed thanks to the arrival of topological physics. Topological physics took off in 2008 with the discovery of topological insulator, a type of material that is electrically insulating in bulk but metallic on the surface. /news/2020-07-higher-order-topology-d-crystal.html Materials Science Wed, 15 Jul 2020 10:31:18 EDT news514027871 Materials that exhibit topological phases can be classified by their dimensionality, symmetries and topological invariants to form conductive-edge states with peculiar transport and spin properties. For example, the quantum Hall effect can arise in two-dimensional (2-D) electron systems subjected to a perpendicular magnetic field. When distinct characteristics of quantum Hall systems are compared with time-reversal symmetric (entropy conserved) topological insulators (TIs), they appear to rely on Coulomb interactions between electrons to induce a wealth of strongly correlated, topologically or symmetry-projected phases in a variety of experimental systems. /news/2020-02-helical-quantum-hall-phase-graphene.html Nanophysics Nanomaterials Fri, 28 Feb 2020 10:00:01 EST news502105231 Researchers at the Weizmann Institute of Science, the University of Rome, CNRS and the University of Helsinki have recently carried out a study investigating the difference between 3-D anisotropic turbulence in classical fluids and that in superfluids, such as helium. Their findings, published in Â鶹ÒùÔºical Review Letters (PRL), are supported by both theory and experimental evidence. /news/2019-04-difference-classical-superfluid-helium-d.html General Â鶹ÒùÔºics Soft Matter Mon, 22 Apr 2019 09:59:13 EDT news475145943 Quantum particles can be difficult to characterize, and almost impossible to control if they strongly interact with each other—until now. /news/2018-09-scientists-tuneable-quantum-state.html Quantum Â鶹ÒùÔºics Wed, 12 Sep 2018 13:00:45 EDT news455976031 More than 150 years ago, William Thomson, later Lord Kelvin, discovered the magnetoresistive effect. Today, this finding enables sensors to measure the rotational speed of a car wheel, and is also used in compass navigation and robot control systems. ETH material scientists have now found a new kind of magnetoresistance that promises further insight into basic research and could one day be used for practical applications. /news/2015-06-game-changing-magnetoresistance.html General Â鶹ÒùÔºics Tue, 16 Jun 2015 06:54:01 EDT news353656403 Attempting to develop a novel type of permanent magnet, a team of researchers at Trinity College in Dublin, Ireland has discovered a new class of magnetic materials based on Mn-Ga alloys. /news/2015-03-class-zero-moment-metallic-magnets-storage.html Condensed Matter Tue, 24 Mar 2015 11:00:02 EDT news346406156