Articles tagged with Spintronics
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A new regenerator material composed solely of copper, iron, and aluminum can achieve cryogenic temperatures without using rare-earth metals or liquid helium. The material utilizes a special property called frustration found in magnetic materials to demonstrate practical-level performance.
Chiral phonons can generate orbital currents in common crystal materials without needing magnetic elements, offering a promising path to developing less expensive and energy-efficient orbitronic devices. This breakthrough is made possible by the intrinsic magnetism of chiral phonons, which allows them to convert into orbital current.
Researchers present novel theoretical framework explaining non-monotonic temperature dependence and sign reversal of chirality-related AHE in highly conductive metals. The study reveals clear picture of unusual transport phenomena, forming foundation for rational design of next-generation spintronic devices and magnetic quantum materials.
Scientists introduce a groundbreaking approach to generate significant photocurrents from perfectly symmetric materials by engineering surface electronic states. This discovery opens new pathways for designing ultrafast spintronic devices and energy harvesting systems.
Researchers have discovered a unique cobalt-based molecule that can function as a spin quantum bit, providing a new design strategy for molecular materials used in quantum information technologies. The molecule exhibits slow magnetic relaxation and delocalized electron spins, allowing it to stabilize the quantum state.
Researchers develop record-high circular polarization of 25.3% in GaN-based spin-LEDs using multi-periodic spin tunnel junction, enabling zero-field spin-LED performance. The design harnesses topological spin textures for controlling electrons and filtering, achieving a breakthrough in device operation.
Researchers have demonstrated altermagnetism in RuO₂ thin films, a promising new magnetic material for high-speed, high-density memory devices. The discovery overcomes limitations of conventional ferromagnets and has the potential to enable more energy-efficient information processing.
A team of researchers at Waseda University has discovered a new correlation between spins, orbitals, and lattice distortions in spinel-type compounds. Magnetic ordering can trigger Jahn-Teller distortions through spin-orbit coupling.
Researchers at AIMR and UC Santa Barbara develop a breakthrough digital p-bit design that eliminates bulky analog components, enabling self-organizing hardware-based probabilistic computing. This advances applications in AI, logistics, scientific discovery, and future computing systems.
Scientists successfully visualize two distinct mechanisms of magnetism switching in antiferromagnets, providing insights into ultrafast magnetic memory and logic devices. The findings suggest that the material itself could switch even faster under appropriate conditions.
Researchers propose combining altermagnetism with molecular ferroelectrics for precise spin polarization control. This breakthrough enables electrically writable, multi-level magnetic memories and ultra-low-power spintronic devices.
Synchrotron radiation sources provide a toolkit for characterizing quantum materials and devices, enabling precise control over quantum systems. Key methods include non-destructive imaging and X-ray diffraction.
Researchers at Waseda University have demonstrated a transformative approach for realizing skyrmion logic based on fluidic principles, utilizing the flow behavior of many skyrmions to simplify device operations. This breakthrough enables the development of nanofluidic logic gates with reduced complexity and improved stability.
The study definitively resolves the controversy by capturing complete two-dimensional snapshots of electron spin and orbital shape on the Au(111) Shockley surface state. The experiment unambiguously confirms the Rashba effect, establishing a robust reference dataset for spin-resolved photoemission.
A research team has taken a major step forward in spintronics by discovering dual torque from electron spins driving magnetic domain wall displacement. This breakthrough could lead to the development of high-speed, energy-efficient memory chips using artificial antiferromagnetic materials.
Researchers at Kyushu University have developed a new method to build more energy-efficient magnetic random-access memory (MRAM) using thulium iron garnet. The team successfully produced thin films of platinum on the TmIG material, enabling high-speed and low-power information rewriting at room temperature.
Scientists observed tiny but spontaneous distortions in the crystal lattice of Cu_xBi_2Se_3 as it entered a superconducting state. This marks the first clear evidence of a topological superconductor coupling to the crystal lattice, advancing understanding of exotic electronic states.
Scientists successfully created three-dimensional skyrmion tubes in synthetic antiferromagnets, which move differently than two-dimensional counterparts. This breakthrough enables the potential for a third dimension of data storage, essential for brain-inspired computing and quantum computing.
Researchers have discovered remarkable spin-related material properties of Germanium-Tin (GeSn) semiconductors, which may offer advantages over conventional materials in quantum computing and spintronics. GeSn alloys provide low in-plane heavy hole effective mass, large g-factor, and anisotropy, making them promising for qubits and low...
Scientists developed a custom Kelvin probe force microscopy system to study the chiral-induced spin selectivity effect in chiral halide perovskites. The study reveals nanoscale 'spin maps' that show the strength and spatial uniformity of the CISS effect.
Scientists at OIST use advanced spectroscopy to track the evolution of dark excitons, overcoming the fundamental challenge of accessing these elusive particles. The findings lay the foundation for dark valleytronics as a field, with potential applications in quantum information technologies.
Scientists have found a new way to manipulate electron transport by exploiting the orbital magnetization of ferromagnetic oxide films. This discovery reveals unexpected electronic behaviors and opens new avenues for designing materials like magnetic sensors with tailored properties.
Researchers at Kobe University investigated how different manufacturing techniques affect the electronic structure of magnetic tunnel junctions. They found that the surface of ferromagnets is different when insulators are transferred to them compared to growing crystals on insulator flakes. This difference influences device behavior, p...
Researchers developed a high-entropy oxide tunnel barrier for MTJs, demonstrating stronger perpendicular magnetization and lower electrical resistance. This breakthrough may lead to smaller, faster, and more efficient hard disk drives and magnetoresistive random access memory devices.
Researchers provide experimental evidence for universal unusual magnetoresistance, attributing it to interfacial electron scattering governed by magnetization and electric field. The two-vector magnetoresistance model offers a unified framework for understanding magnetoresistance in diverse spintronic systems.
Scientists create nanoscale magnetic thin films with embedded functionality by controlling atomic spacing on flexible substrates. This breakthrough opens doors to novel materials and applications in electronics, healthcare, and energy efficiency.
Researchers have demonstrated the unique benefits of antiferromagnets, enabling high-speed, high-efficiency memory operations. Antiferromagnets outperform ferromagnets with faster switching times and higher reliability, making them a promising complement to conventional memory technologies.
Researchers at Rice University have found that bending atomically thin layers of materials like molybdenum ditelluride creates a unique spin texture called persistent spin helix, which preserves spin state even in scattering collisions. This discovery could lead to the development of ultracompact, energy-efficient electronic devices.
Researchers successfully realized a stable, isolated quantum spin on an insulating magnesium oxide surface placed over a ferromagnetic iron substrate. The MgO/Fe(001) structure, widely used in spintronics, enables the formation of isolated spins due to its lack of conduction electrons.
Researchers have designed a novel single-atom ruthenium-doped Co3O4 catalyst that significantly promotes water splitting efficiency. The high-spin Co3+ species facilitate robust OH* adsorption and enhance the supply of H* intermediates, accelerating the Volmer–Tafel pathway of the hydrogen evolution reaction.
Researchers from The University of Osaka develop a new program to calculate the spin accumulation coefficient, providing a definitive measure of the spin Hall effect and overcoming ambiguities. This advancement enables accurate predictions for real materials, accelerating the development of advanced spintronic technologies.
Researchers at the University of Minnesota have developed a new material called Ni₄W that can generate spin currents to control magnetization in electronic devices. This material has the potential to significantly reduce power usage in devices like smartphones and data centers.
Researchers at Forschungszentrum Jülich successfully created a 2D half metal, a material that conducts electricity using one type of electron spin. The alloy, composed of iron and palladium, enables energy-efficient spintronics beyond conventional electronics.
Scientists at AIMR successfully demonstrated Rabi-like splitting in an artificial magnet using nonlinear coupling, preserving the system's symmetries. This finding opens up new possibilities for advancing our understanding of nonlinear dynamics and coupling phenomena in artificial control.
Researchers at NIMS developed a new theory explaining the oscillation of tunnel magnetoresistance (TMR) with changes in insulating barrier thickness. The theory resolves a long-standing mystery, providing insights into achieving even higher TMR ratios for enhanced magnetic memory and sensor applications.
A research team from the University of Münster has developed a new way to produce spin waveguides, allowing for large networks capable of processing information efficiently. The team created the largest spin waveguide network to date, with precise control over properties such as wavelength and reflection.
Researchers from The University of Osaka developed a technique to recover magnetization in degraded spintronics devices using molecular hydrogen and Pt underlayers. This method can improve the robustness of semiconductor memory.
Scientists from TU Delft have demonstrated quantum spin currents in graphene without external magnetic fields, a crucial step towards spintronics and next-generation technologies. These robust spintronic devices promise advancements in quantum computing and memory devices.
Researchers demonstrate a new strategy for magnetization reversal in multiferroic materials, allowing for more energy-efficient electronics. The study achieves this breakthrough by growing thin films in an unconventional crystallographic orientation, enabling the application of electric fields perpendicular to the film surface.
Researchers developed a novel structure to enhance spin-torque heat-assisted magnetic recording, achieving 35% improvement in HDD recording efficiency. The technology has potential for reduced energy consumption and enhanced durability, paving the way for next-generation storage technologies.
Scientists develop high-quality (Ga,Fe)Sb ferromagnetic semiconductor with a record-high Curie temperature of up to 530 K, exceeding previous limits and enabling stable operation at room temperature. The material exhibits excellent crystallinity and superior magnetic properties, making it suitable for spintronics applications.
Researchers at University of Chicago Pritzker School of Molecular Engineering discovered one of the world's thinnest semiconductor junctions within a quantum material. The discovery could lead to ultra-miniaturized electronic components and provides insight into electron behavior in materials designed for quantum applications.
Researchers have discovered a way to control and track skyrmions, tiny magnetic swirls that can power future electronics. By exciting certain 'resonances' in the skyrmions, they can detect spin currents using advanced optical techniques.
Kobe University researchers uncover a new phenomenon in bismuth that masks its surface conductivity, relevant to topological materials suitable for quantum computing and spintronics. The study breaks the principle of bulk-edge correspondence, suggesting 'topological blocking' in other systems.
An international team has experimentally observed dynamic processes in a spin valve on the femtosecond scale, using the unique capabilities of BESSY II's femtoslicing station. The researchers characterized spin-polarized electron pulses and analyzed demagnetization dynamics in a ferrimagnetic layer.
Researchers at EPFL discovered that iron-rich hematite exhibits new spin physics, enabling signal processing at ultrahigh frequencies and allowing repeated encoding and storage of digital data. This breakthrough paves the way for a more efficient and sustainable approach to spintronics.
Researchers have developed a novel oxide material that exhibits autonomous spin orientation control in response to magnetic fields, allowing for the detection of both field direction and strength. The 'semi-self-controlled' spinning enables advanced angle-resolved spintronic devices with strong potential for next-generation technologies.
Researchers develop novel method to control electron spin using only an electric field, paving the way for ultra-compact and energy-efficient spintronic devices. Altermagnetic bilayers enable layer-spin locking, allowing precise control over spin currents at room temperature.
The device enables precise control over terahertz wave polarization, revolutionizing applications such as data transmission, imaging, and sensing. This innovation promises to transform fields like wireless communication and biomedical imaging.
A new security protocol has been developed to protect miniaturized wireless medical implants from cyber threats, ensuring patient safety. The protocol uses a quirk of wireless power transfer to authenticate device access and prevent hacking.
Researchers at UC Riverside will explore how antiferromagnetic spintronics can improve memory density and computing speed. The project aims to develop ultrafast spin-based technology using special antiferromagnets with potential applications in advanced memory and computing.
Researchers have developed a chiral semiconductor that emits circularly polarised light, potentially improving OLED display efficiency and enabling quantum computing. The innovation uses molecular design tricks inspired by nature to create ordered spiral columns of semiconducting molecules.
The study discovered a giant deformation potential of 123 eV, leading to exceptionally long polarization response times and enhanced spin lifetimes. Small polaron formation was confirmed through various techniques, including optical Kerr spectroscopy, X-ray diffraction, and phonon dynamics.
Researchers at UC San Diego create computational approach to model chiral helimagnets using quantum mechanics calculations. They successfully predicted key parameters, including helix wavevector, period, and critical magnetic field, opening opportunities for designing better materials.
Researchers have developed a new spintronic device that allows for efficient switching of magnetic states, enabling the creation of lower-power AI chips. This breakthrough could revolutionize AI hardware with high efficiency and low energy costs.
Researchers used neutrons to study the magnetic structure of layered perovskites, resolving a long-standing mystery. The study reveals a spiral magnetic structure, which is essential for understanding the material's promising magnetic and electric properties.
Researchers developed a high-temperature multiferroic that operates stably at 160℃, surpassing previous limits of 20℃. This breakthrough enables the creation of power-efficient spintronics devices and advanced optical components.
Researchers at Mainz University confirmed the chiral-induced spin selectivity (CISS) effect using spintronic methods. The study shows that chiral molecules can convert spin currents to charge with varying efficiency, depending on their chirality and orientation.
Researchers at NIMS developed a next-generation AI device leveraging ion-controlled spin wave interference in magnetic materials, outperforming conventional devices by up to 10 times. The technology enables energy-efficient computations with minimal degradation when miniaturized, opening doors for various industrial applications.
Researchers at the University of Utah and UCI have discovered a unique quantum behavior that allows for the manipulation of electron-spin and magnetization through electrical currents. This phenomenon, dubbed anomalous Hall torque, has potential applications in neuromorphic computing.