//www.koonmotors.com/news/computers_math/spintronics/ Spintronics. Read the latest research news on spintronics, including exotic properties and breakthroughs that hold promise for next-generation computers. en-us Fri, 08 Sep 2023 08:22:14 EDT Fri, 08 Sep 2023 08:22:14 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/computers_math/spintronics/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/08/230830131937.htm Researchers have developed a new approach to building quantum repeaters, devices that can link quantum computers over long distances. The new system transmits low-loss signals over optical fiber using light in the telecom band, a longstanding goal in the march toward robust quantum communication networks. Wed, 30 Aug 2023 13:19:37 EDT //www.koonmotors.com/releases/2023/08/230830131937.htm //www.koonmotors.com/releases/2023/08/230824150751.htm A new approach to quantum light emitters generates a stream of circularly polarized single photons, or particles of light, that may be useful for a range of quantum information and communication applications. A team stacked two different, atomically thin materials to realize this chiral quantum light source. Thu, 24 Aug 2023 15:07:51 EDT //www.koonmotors.com/releases/2023/08/230824150751.htm //www.koonmotors.com/releases/2023/08/230816114142.htm Research is underway around the world to find alternatives to our current electronic computing technology, as great, electron-based systems have limitations. A new way of transmitting information is emerging from the field of magnonics: instead of electron exchange, the waves generated in magnetic media could be used for transmission, but magnonics-based computing has been (too) slow to date. Scientists have now discovered a significant new method: When the intensity is increased, the spin waves become shorter and faster -- another step towards magnon computing. Wed, 16 Aug 2023 11:41:42 EDT //www.koonmotors.com/releases/2023/08/230816114142.htm //www.koonmotors.com/releases/2023/08/230816114057.htm Researchers have found a way to control the interaction of light and quantum 'spin' in organic semiconductors, that works even at room temperature. Wed, 16 Aug 2023 11:40:57 EDT //www.koonmotors.com/releases/2023/08/230816114057.htm //www.koonmotors.com/releases/2023/08/230803112955.htm Researchers found a way to tune the spin density in diamond by applying an external laser or microwave beam. The finding could open new possibilities for advanced quantum devices. Thu, 03 Aug 2023 11:29:55 EDT //www.koonmotors.com/releases/2023/08/230803112955.htm //www.koonmotors.com/releases/2023/08/230802162512.htm In a potential boon for quantum computing, physicists have shown that topologically protected quantum states can be entangled with other, highly manipulable quantum states in some electronic materials. 结婚,02年2023年8月16日:25:12 EDT //www.koonmotors.com/releases/2023/08/230802162512.htm //www.koonmotors.com/releases/2023/08/230802131950.htm 一个研究小组报告的机械反应across a layered magnetic material tied to changing its electron spin. This response could have important applications in nanodevices requiring ultra-precise and fast motion control. Wed, 02 Aug 2023 13:19:50 EDT //www.koonmotors.com/releases/2023/08/230802131950.htm //www.koonmotors.com/releases/2023/07/230719150021.htm Scientists have demonstrated experimentally a long-theorized relationship between electron and nuclear motion in molecules, which could lead to the design of materials for solar cells, electronic displays and other applications that can make use of this powerful quantum phenomenon. Wed, 19 Jul 2023 15:00:21 EDT //www.koonmotors.com/releases/2023/07/230719150021.htm //www.koonmotors.com/releases/2023/07/230710133051.htm A team conducted an in-depth investigation of the magnetism of TbMn6Sn6, a Kagome layered topological magnet. They were surprised to find that the magnetic spin reorientation in TbMn6Sn6 occurs by generating increasing numbers of magnetically isotropic ions as the temperature increases. Mon, 10 Jul 2023 13:30:51 EDT //www.koonmotors.com/releases/2023/07/230710133051.htm //www.koonmotors.com/releases/2023/06/230609125659.htm With the need for hardware to process large amounts of digital information ever growing, researchers are working hard to improve magnetoresistive devices. The magnetoresistance ratio indicates the efficiency of these devices, the higher the better. Most magnetoresistive devices comprise magnesium oxide and iron-based magnetic alloys. But a group of researchers has unveiled a new material that also exhibits enormous magnetoresistance. Fri, 09 Jun 2023 12:56:59 EDT //www.koonmotors.com/releases/2023/06/230609125659.htm //www.koonmotors.com/releases/2023/05/230508104927.htm Quantum dots in semiconductors such as silicon or gallium arsenide have long been considered hot candidates for hosting quantum bits in future quantum processors. Scientists have now shown that bilayer graphene has even more to offer here than other materials. The double quantum dots they have created are characterized by a nearly perfect electron-hole-symmetry that allows a robust read-out mechanism -- one of the necessary criteria for quantum computing. 星期一,2023年5月08年10:49:27美国东部时间 //www.koonmotors.com/releases/2023/05/230508104927.htm //www.koonmotors.com/releases/2023/05/230504154031.htm An international team of researchers has developed a comprehensive manual for engineering spin dynamics in nanomagnets -- an important step toward advancing spintronic and quantum-information technologies. Thu, 04 May 2023 15:40:31 EDT //www.koonmotors.com/releases/2023/05/230504154031.htm //www.koonmotors.com/releases/2023/04/230413154411.htm The flow of matter, from macroscopic water currents to the microscopic flow of electric charge, underpins much of the infrastructure of modern times. In the search for breakthroughs in energy efficiency, data storage capacity, and processing speed, scientists search for ways in which to control the flow of quantum aspects of matter such as the 'spin' of an electron -- its magnetic moment -- or its 'valley state', a novel quantum aspect of matter found in many two dimensional materials. A team of researchers has recently discovered a route to induce and control the flow of spin and valley currents at ultrafast times with specially designed laser pulses, offering a new perspective on the ongoing search for the next generation of information technologies. Thu, 13 Apr 2023 15:44:11 EDT //www.koonmotors.com/releases/2023/04/230413154411.htm //www.koonmotors.com/releases/2023/04/230404161711.htm 一个国际研究小组创造了a mixed magnon state in an organic hybrid perovskite material by utilizing the Dzyaloshinskii--Moriya-Interaction (DMI). The resulting material has potential for processing and storing quantum computing information. Tue, 04 Apr 2023 16:17:11 EDT //www.koonmotors.com/releases/2023/04/230404161711.htm //www.koonmotors.com/releases/2023/03/230329091949.htm Thanks to a breakthrough in the field of magnonics, researchers have sent and stored data using charge-free magnetic waves, rather than traditional electron flows. The discovery could solve the dilemma of energy-hungry computing technology in the age of big data. Wed, 29 Mar 2023 09:19:49 EDT //www.koonmotors.com/releases/2023/03/230329091949.htm //www.koonmotors.com/releases/2023/03/230322140331.htm A model system created by stacking a pair of monolayer semiconductors is giving physicists a simpler way to study confounding quantum behavior, from heavy fermions to exotic quantum phase transitions. 结婚,2023年3月22日14:03:31美国东部时间 //www.koonmotors.com/releases/2023/03/230322140331.htm //www.koonmotors.com/releases/2023/03/230317145102.htm Research using a quantum computer as the physical platform for quantum experiments has found a way to design and characterize tailor-made magnetic objects using quantum bits, or qubits. That opens up a new approach to develop new materials and robust quantum computing. Fri, 17 Mar 2023 14:51:02 EDT //www.koonmotors.com/releases/2023/03/230317145102.htm //www.koonmotors.com/releases/2023/03/230307114448.htm Materials scientists describe in two papers how complex oxides can be used to create very energy-efficient magneto-electric spin-orbit (MESO) devices and memristive devices with reduced dimensions. Tue, 07 Mar 2023 11:44:48 EST //www.koonmotors.com/releases/2023/03/230307114448.htm //www.koonmotors.com/releases/2023/03/230306143325.htm Scientists develop method for chemically modifying nanoscale tubes of carbon atoms, so they can host spinning electrons to serve as stable quantum bits in quantum technologies. Mon, 06 Mar 2023 14:33:25 EST //www.koonmotors.com/releases/2023/03/230306143325.htm //www.koonmotors.com/releases/2023/02/230215143644.htm Researchers propose a new approach to making qubits, the basic units in quantum computing, and controlling them to read and write data. The method is based on measuring and controlling the spins of atomic nuclei, using beams of light from two lasers of slightly different colors. Wed, 15 Feb 2023 14:36:44 EST //www.koonmotors.com/releases/2023/02/230215143644.htm //www.koonmotors.com/releases/2023/02/230213134700.htm Researchers chiral phonons to convert wasted heat into spin information -- without needing magnetic materials. The finding could lead to new classes of less expensive, energy-efficient spintronic devices for use in applications ranging from computational memory to power grids. Mon, 13 Feb 2023 13:47:00 EST //www.koonmotors.com/releases/2023/02/230213134700.htm //www.koonmotors.com/releases/2023/01/230131101902.htm An international research team has developed a new method for the efficient coupling of terahertz waves with much shorter wavelengths, so-called spin waves. Their experiments, in combination with theoretical models, clarify the fundamental mechanisms of this process previously thought impossible. The results are an important step for the development of novel, energy-saving spin-based technologies for data processing. Tue, 31 Jan 2023 10:19:02 EST //www.koonmotors.com/releases/2023/01/230131101902.htm //www.koonmotors.com/releases/2023/01/230130144803.htm Researchers have developed a new method for manipulating information in quantum systems by controlling the spin of electrons in silicon quantum dots. The results provide a promising new mechanism for control of qubits, which could pave the way for the development of a practical, silicon-based quantum computer. Mon, 30 Jan 2023 14:48:03 EST //www.koonmotors.com/releases/2023/01/230130144803.htm //www.koonmotors.com/releases/2023/01/230127131213.htm In the global push for practical quantum networks and quantum computers, an international team of researchers has demonstrated a leap in preserving the quantum coherence of quantum dot spin qubits. Fri, 27 Jan 2023 13:12:13 EST //www.koonmotors.com/releases/2023/01/230127131213.htm //www.koonmotors.com/releases/2023/01/230124101547.htm A research group has succeeded in measuring spin transport in a thin film of specific molecules -- a material well-known in organic light emitting diodes -- at room temperature. They found that this thin molecular film has a spin diffusion length of approximately 62 nm, a length that could have practical applications in developing spintronics technology. In addition, while electricity has been used to control spin transport in the past, the thin molecular film used in this study is photoconductive, allowing spin transport control using visible light. Tue, 24 Jan 2023 10:15:47 EST //www.koonmotors.com/releases/2023/01/230124101547.htm //www.koonmotors.com/releases/2022/12/221221154653.htm Researchers developed a new graphene-based nanoelectronics platform compatible with conventional microelectronics manufacturing, paving the way for a successor to silicon. Wed, 21 Dec 2022 15:46:53 EST //www.koonmotors.com/releases/2022/12/221221154653.htm //www.koonmotors.com/releases/2022/12/221215161553.htm Researchers have uncovered an altogether new type of fractal appearing in a class of magnets called spin ices. The discovery was surprising because the fractals were seen in a clean three-dimensional crystal, where they conventionally would not be expected. Even more remarkably, the fractals are visible in dynamical properties of the crystal, and hidden in static ones. These features motivated the appellation of 'emergent dynamical fractal'. Thu, 15 Dec 2022 16:15:53 EST //www.koonmotors.com/releases/2022/12/221215161553.htm //www.koonmotors.com/releases/2022/11/221129214718.htm New research demonstrates a 20x improvement in resetting a quantum bit to its '0' state, using a modern version of the 'Maxwell's demon'. Tue, 29 Nov 2022 21:47:18 EST //www.koonmotors.com/releases/2022/11/221129214718.htm //www.koonmotors.com/releases/2022/11/221123113221.htm Physicists have experimentally demonstrated for the first time that there is a negative correlation between the two spins of an entangled pair of electrons from a superconductor. For their study, the researchers used spin filters made of nanomagnets and quantum dots. Wed, 23 Nov 2022 11:32:21 EST //www.koonmotors.com/releases/2022/11/221123113221.htm //www.koonmotors.com/releases/2022/11/221103120036.htm The challenge of fabricating nanowires directly on silicon substrates for the creation of the next generation of electronics has finally been solved. Next generation spintronics will lead to better memory storage mechanisms in computers, making them faster and more efficient. Thu, 03 Nov 2022 12:00:36 EDT //www.koonmotors.com/releases/2022/11/221103120036.htm //www.koonmotors.com/releases/2022/10/221027123929.htm A new way to combine two materials with special electrical properties -- a monolayer superconductor and a topological insulator -- provides the best platform to date to explore an unusual form of superconductivity called topological superconductivity. The combination could provide the basis for topological quantum computers that are more stable than their traditional counterparts. Thu, 27 Oct 2022 12:39:29 EDT //www.koonmotors.com/releases/2022/10/221027123929.htm //www.koonmotors.com/releases/2022/09/220929203718.htm Engineers have substantially extended the time that their quantum computing processors can hold information by more than 100 times compared to previous results. Thu, 29 Sep 2022 20:37:18 EDT //www.koonmotors.com/releases/2022/09/220929203718.htm //www.koonmotors.com/releases/2022/09/220929133448.htm Researchers have engineered a record number of six, silicon-based, spin qubits in a fully interoperable array. Importantly, the qubits can be operated with a low error-rate that is achieved with a new chip design, an automated calibration procedure, and new methods for qubit initialization and readout. These advances will contribute to a scalable quantum computer based on silicon. Thu, 29 Sep 2022 13:34:48 EDT //www.koonmotors.com/releases/2022/09/220929133448.htm //www.koonmotors.com/releases/2022/09/220922124427.htm Quantum researchers have demonstrated a method for encoding vastly more information into a single photon, opening the door to even faster and more powerful quantum communication tools. Thu, 22 Sep 2022 12:44:27 EDT //www.koonmotors.com/releases/2022/09/220922124427.htm //www.koonmotors.com/releases/2022/09/220922103140.htm Millions of quantum bits are required for quantum computers to prove useful in practical applications. But this is still a long way off. One problem is that the qubits have to be very close to each other on the chip. Researchers have now come a significant step closer to solving the problem. They succeeded in transferring electrons over several micrometers on a quantum chip. Thu, 22 Sep 2022 10:31:40 EDT //www.koonmotors.com/releases/2022/09/220922103140.htm //www.koonmotors.com/releases/2022/09/220907192611.htm Research shows that spinning quasiparticles, or magnons, light up when paired with a light-emitting quasiparticle, or exciton, with potential quantum information applications. Wed, 07 Sep 2022 19:26:11 EDT //www.koonmotors.com/releases/2022/09/220907192611.htm //www.koonmotors.com/releases/2022/09/220902131146.htm A general formula that can calculate the spin current induced by oscillating magnetic fields in magnetic materials and aid our understanding of novel spintronics functionality has been developed. The formula predicts large spin currents arising from a hitherto unknown contribution in antiferromagnetic chromium trihalides, opening doors to material design for novel spintronics devices. Fri, 02 Sep 2022 13:11:46 EDT //www.koonmotors.com/releases/2022/09/220902131146.htm //www.koonmotors.com/releases/2022/08/220829112821.htm 科学家开发出了一种数学description of what happens within tiny magnets as they fluctuate between states when an electric current and magnetic field are applied. Their findings could act as the foundation for engineering more advanced computers that can quantify uncertainty while interpreting complex data. Mon, 29 Aug 2022 11:28:21 EDT //www.koonmotors.com/releases/2022/08/220829112821.htm //www.koonmotors.com/releases/2022/08/220825094826.htm Topological insulators are regarded as the key to novel 'spintronic' devices and quantum computers of the future due to their unique electronic properties. Physicists have now been able to understand for the first time how the topological properties of multilayer systems of Tungsten di-telluride can be changed systematically by means of scanning tunneling microscopy. The chemical compound has recently proven to be a promising material for the realization of topological states. Thu, 25 Aug 2022 09:48:26 EDT //www.koonmotors.com/releases/2022/08/220825094826.htm //www.koonmotors.com/releases/2022/08/220818122348.htm When some materials are cooled to a certain temperature, they lose electric resistance, becoming superconductors. Thu, 18 Aug 2022 12:23:48 EDT //www.koonmotors.com/releases/2022/08/220818122348.htm //www.koonmotors.com/releases/2022/08/220818122326.htm An advance in the use of antiferromagnetic materials in memory storage devices has been made by an international team of physicists. Thu, 18 Aug 2022 12:23:26 EDT //www.koonmotors.com/releases/2022/08/220818122326.htm //www.koonmotors.com/releases/2022/08/220815112822.htm By using photons and electron spin qubits to control nuclear spins in a two-dimensional material, researchers have opened a new frontier in quantum science and technology, enabling applications like atomic-scale nuclear magnetic resonance spectroscopy, and to read and write quantum information with nuclear spins in 2D materials. Mon, 15 Aug 2022 11:28:22 EDT //www.koonmotors.com/releases/2022/08/220815112822.htm //www.koonmotors.com/releases/2022/07/220727175643.htm Scientists have used neutron scattering to determine whether a specific material's atomic structure could host a novel state of matter called a spiral spin liquid. By tracking tiny magnetic moments known as 'spins' on the honeycomb lattice of a layered iron trichloride magnet, the team found the first 2D system to host a spiral spin liquid. Wed, 27 Jul 2022 17:56:43 EDT //www.koonmotors.com/releases/2022/07/220727175643.htm //www.koonmotors.com/releases/2022/07/220721132045.htm C60 molecules on a gold substrate appear more complex than their graphene counterparts, but have much more ordinary electronic properties. This is now shown by measurements with ARPES at BESSY II and detailed calculations. Thu, 21 Jul 2022 13:20:45 EDT //www.koonmotors.com/releases/2022/07/220721132045.htm //www.koonmotors.com/releases/2022/07/220720121042.htm Computers and smartphones have different kinds of memory, which vary in speed and power efficiency depending on where they are used in the system. Typically, larger computers, especially those in data centers, will use a lot of magnetic hard drives, which are less common in consumer systems now. The magnetic technology these are based on provides very high capacity, but lack the speed of solid state system memory. Devices based on upcoming spintronic technology may be able to bridge that gap and radically improve upon even theoretical performance of classical electronic devices. Wed, 20 Jul 2022 12:10:42 EDT //www.koonmotors.com/releases/2022/07/220720121042.htm //www.koonmotors.com/releases/2022/07/220714145105.htm As our devices become smaller, faster, more energy efficient, and capable of holding larger amounts of data, spintronics may continue that trajectory. Whereas electronics is based on the flow of electrons, spintronics is based on the spin of electrons. Thu, 14 Jul 2022 14:51:05 EDT //www.koonmotors.com/releases/2022/07/220714145105.htm //www.koonmotors.com/releases/2022/07/220713114553.htm Researchers have made a crucial breakthrough in the development of quantum technology. Their research describes their observations of over 150,000 silicon 'T center' photon-spin qubits, an important milestone that unlocks immediate opportunities to construct massively scalable quantum computers and the quantum internet that will connect them. Wed, 13 Jul 2022 11:45:53 EDT //www.koonmotors.com/releases/2022/07/220713114553.htm //www.koonmotors.com/releases/2022/07/220706133354.htm If you switch a bit in the memory of a computer and then switch it back again, you have restored the original state. There are only two states that can be called '0 and 1'. However, in a crystal based on oxides of gadolinium and manganese, an atomic switch was found that has to be switched back and forth not just once, but twice, until the original state is reached again. Wed, 06 Jul 2022 13:33:54 EDT //www.koonmotors.com/releases/2022/07/220706133354.htm //www.koonmotors.com/releases/2022/06/220616142738.htm A quantum simulator is giving physicists a clear look at spin-charge separation, a bizarre phenomenon in which two parts of indivisible particles called electrons travel at different speeds in extremely cold 1D wires. The research has implications for quantum computing and electronics with atom-scale wires. Thu, 16 Jun 2022 14:27:38 EDT //www.koonmotors.com/releases/2022/06/220616142738.htm //www.koonmotors.com/releases/2022/06/220616121633.htm Researchers measured tiny magnetic fields with unprecedented speed. By monitoring spins at nitrogen-vacancy centers along using ultrafast spectroscopy, this work may lead to extremely accurate future quantum computers. Thu, 16 Jun 2022 12:16:33 EDT //www.koonmotors.com/releases/2022/06/220616121633.htm //www.koonmotors.com/releases/2022/05/220531102646.htm Combinatorial optimization problems are at the root of many industrial processes and solving them is key to a more sustainable and efficient future. Ising machines can solve certain combinatorial optimization problems, but their efficiency could be improved with multi-spin flips. Researchers have now tackled this difficult problem by developing a merge algorithm that disguises a multi-spin flip as a simpler, single-spin flip. This technology provides optimal solutions to hard computational problems in a shorter time. Tue, 31 May 2022 10:26:46 EDT //www.koonmotors.com/releases/2022/05/220531102646.htm //www.koonmotors.com/releases/2022/05/220523093357.htm Quantum physicists have answered a puzzling question at the forefront of research into iron-based superconductors: Why do electrons in iron selenide dance to a different tune when they move right and left rather than forward and back? In a new study, the researchers report the discovery of high-energy spin anisotropy that occurs concurrently with electronic nematicity in iron selenide. Mon, 23 May 2022 09:33:57 EDT //www.koonmotors.com/releases/2022/05/220523093357.htm //www.koonmotors.com/releases/2022/05/220519115313.htm Electronic nematicity, believed to be an important ingredient in high-temperature superconductivity, is primarily spin-driven in the iron-based superconductor FeSe, reveals a new study. Thu, 19 May 2022 11:53:13 EDT //www.koonmotors.com/releases/2022/05/220519115313.htm //www.koonmotors.com/releases/2022/05/220511123554.htm The famous double slit experiment shows that particles can travel on two paths at the same time -- but only by looking at a lot of particles and analysing the results statistically. Now a two-path-interference experiment has been designed that only has to measure one specific particle to prove that it travelled on two paths. Wed, 11 May 2022 12:35:54 EDT //www.koonmotors.com/releases/2022/05/220511123554.htm //www.koonmotors.com/releases/2022/05/220510163409.htm Computational detective work by physicists has confirmed cerium zirconium pyrochlore is a 3D quantum spin liquid, a solid material in which quantum entanglement and the geometric arrangement of atoms cause electrons to fluctuate between quantum magnetic states no matter how cold they become. Tue, 10 May 2022 16:34:09 EDT //www.koonmotors.com/releases/2022/05/220510163409.htm //www.koonmotors.com/releases/2022/05/220510102945.htm An intermediate layer consisting of a few atoms is helping to improve the transport of spin currents from one material to another. Until now, this process involves significant losses. A team reports on how this can be avoided. The researchers thus demonstrate important new insights relevant for many spintronic applications, for example energy-efficient and ultra-fast storage technologies of the future. Tue, 10 May 2022 10:29:45 EDT //www.koonmotors.com/releases/2022/05/220510102945.htm //www.koonmotors.com/releases/2022/05/220505143823.htm Holding the right material at the right angle, researchers have discovered a strategy to switch the magnetization in thin layers of a ferromagnet -- a technique that could eventually lead to the development of more energy-efficient magnetic memory devices. Thu, 05 May 2022 14:38:23 EDT //www.koonmotors.com/releases/2022/05/220505143823.htm //www.koonmotors.com/releases/2022/04/220426101750.htm Researchers have established a low-cost method of magnetization reversal on perpendicularly magnetized ferromagnets. Not needing an external magnetic field, the method brings reverse magnetization closer to commercial viability. Tue, 26 Apr 2022 10:17:50 EDT //www.koonmotors.com/releases/2022/04/220426101750.htm //www.koonmotors.com/releases/2022/04/220425104858.htm Research has found a new way to create nano-sized magnetic particles using ultrafast laser light pulses. The discovery could pave the way for new and more energy-efficient technical components and become useful in the quantum computers of the future. Mon, 25 Apr 2022 10:48:58 EDT //www.koonmotors.com/releases/2022/04/220425104858.htm //www.koonmotors.com/releases/2022/04/220425085735.htm Scientists have made a major breakthrough on how the spin evolves in the nanoworld on extremely short time scales. Mon, 25 Apr 2022 08:57:35 EDT //www.koonmotors.com/releases/2022/04/220425085735.htm