Articles tagged with Magnetization
Scientists at Max Born Institute demonstrate ultrafast emergence of all-optical switching by generating a nanometer-scale grating through interference of two pulses in the extreme ultraviolet spectral range. The researchers identify an intensity ratio as a fingerprint observable for AOS in diffraction experiments.
FeRh, a metal with antiferromagnetic and ferromagnetic phases, has its phase transition kinetics measured using ultrafast techniques. The study reveals new insights into the ultrafast dynamics of magnetic materials.
Researchers analyzed burnt artifacts, volcanic samples, and sediment cores to recreate the Earth's magnetic field over 9,000 years. Their new modeling technique predicts that the South Atlantic Anomaly will disappear within 300 years, ruling out an impending polarity reversal.
Scientists have developed a new method of recording data using light on silicon waveguides, enabling non-volatile and high-performance magneto-optical memories. This breakthrough could lead to all-optical alternatives in telecommunications infrastructure and applications in optical computing.
Researchers have discovered a unique mechanism called 'momentum-dependent spin splitting' that allows for strong spin currents and efficient magnetic switching. This discovery could lead to advances in magnetic random-access memory technologies.
Researchers at INRS have developed a new method to study the spin dynamics inside rare earth materials, promising for spintronic devices. The breakthrough uses a tabletop ultrafast soft X-ray microscope to spatio-temporally resolve spin dynamics.
Researchers at Tohoku University have achieved a breakthrough in reversing magnetization using spin currents, which could lead to more efficient nonvolatile magnetic memory. The new method reduces current density by 30% compared to existing spin current-based techniques.
The discovery could lead to more compact computer memories and efficient technical components. Researchers used ultrafast laser pulses to create magnetic skyrmions, a type of swirling magnetism.
Researchers at Martin-Luther-University Halle-Wittenberg discovered a way to convert frequencies to higher ranges using magnetic materials without additional components. This breakthrough could make certain electronic components obsolete and improve the energy efficiency of digital technologies.
Researchers created 3D DNA-like structures using advanced 3D printing and microscopy, discovering nanoscale topological textures in the magnetic field. This breakthrough enables control over magnetic forces on the nanoscale, promising new possibilities for particle trapping, imaging techniques, and smart materials.
A research group at Tohoku University has successfully engineered relaxation time to achieve fast switching in sub-five-nm magnetic tunnel junctions, reaching 3.5 ns. This breakthrough enables the development of STT-MRAM-based semiconductor ICs with improved performance and power consumption.
A team of researchers from the University of Exeter has made a breakthrough in developing all-optical switching of magnetization using transition metals. The new technology enables energy-efficient nanoscale magnetic storage devices with unprecedented tunability and scalability.
Researchers have successfully demonstrated a strong exchange coupling of thin ferromagnetic layers to the antiferromagnetic compound Mn2Au, enabling large magnetoresistance effects. This breakthrough enables the use of well-established read-out methods in antiferromagnetic spintronics.
Researchers develop a new method to perform logic operations more efficiently and reliably using magnonics. Nanostructured antiferromagnetic wires are well-suited for this purpose, enabling quick and low-energy computation.
MnBi2Te4's unique properties make it suitable for ultra-low-energy electronics and observing exotic topological phenomena. The material is metallic along its one-dimensional edges while electrically insulating in its interior.
Researchers have discovered a way to induce magnetic waves in antiferromagnets using ultrafast laser pulses, potentially leading to faster and more efficient data storage. This technology could endow materials with new functionalities for energy-efficient and ultrafast data storage applications.
Researchers at the University of Rochester found that lunar samples do not show signs of magnetization from a magnetic shield. The lack of magnetization suggests that the moon has never had a prolonged dynamo field. Without this protection, solar wind implanted volatiles like helium 3 in the lunar soil.
Scientists at São Paulo State University discovered that compressing paramagnetic salts adiabatically can produce magnetization. The process aligns the particles' spins, resulting in a constant total entropy and magnetized system. This method has potential applications in investigating other interacting systems.
Researchers have resolved magnetic structures of different topological semimetals using advanced techniques. For PrAlGe and DySb, the study reveals a uniaxial magnetic interaction in PrAlGe with antiferromagnetism and a field-induced tricritical phenomenon in DySb.
A collaborative research group successfully controlled the magnetization of a ferromagnetic thin film using circular vibrations of surface acoustic waves. The discovery opens up new possibilities for combining and developing acoustic and magnetic devices.
Researchers at Tohoku University have developed a nanosecond operation technology for the spintronics-based probabilistic bit, enabling faster computation speeds and accuracy. The device, with an in-plane magnetic easy axis, achieves 100 times faster relaxation times than previous records.
Researchers developed a microwave-assisted magnetic recording technology that exploits the flux control effect to improve hard disk performance. The FC device operates effectively at high write rates, exceeding conventional write head performance and showing promise for extending areal density.
Researchers at Tohoku University and Toshiba Corporation developed a new analytical technology for hard disk drives, enabling precise analysis of write head operations. The method achieves high spatial and temporal resolutions, potentially leading to further increases in HDD capacity and higher data transfer rates.
A new magnetic memory device based on spintronics has been developed to enhance the energy efficiency of SOT-MRAM. The device uses ultrathin iron germanium telluride material that switches from a hard magnet to a soft magnet when a small current is applied.
Researchers found that damping-like torque, previously thought to be small, can dominate spin reorientation in antiferromagnetic materials. This discovery could lead to efficient spin manipulation and ultrafast switching in spintronics devices.
Researchers at the Paul Scherrer Institute report the discovery of three-dimensional magnetic 'vortex rings' within a tiny pillar made of gadolinium cobalt. These structures, consisting of doughnut-shaped vortices, provide fundamental insight into intricate nanoscale structures inside bulk magnets.
Researchers have developed a gallium arsenide-based ferromagnetic semiconductor that can act as memory by quickly switching its magnetic state in the presence of an induced current. The new material suppresses instability and lowers power consumption, offering highly efficient memory.
Researchers have developed an all-solid redox transistor containing a thin film of Fe3O4 on magnesium oxide and lithium silicate electrolyte, enabling reversible rotation of the magnetization angle in magnetite at room temperature. The device operates with lower power consumption than traditional spin current injection methods.
Scientists have debunked a longstanding theory on the Moon's magnetic crust, finding that meteoroid impact plasmas interact weakly with the lunar crust. A numerical study suggests a core dynamo is the most plausible explanation for the magnetisation.
Researchers created tiny magnetization patterns known as skyrmions faster using laser pulses, which can have implications for magnetic data processing and storage. The findings clarified how the topology of the magnetic system changes in this process, contributing to stability but also making creation difficult.
A team of researchers has precisely recorded the dependence of resonant magnetic scattering intensity on x-ray intensity using a ferromagnetic domain sample. They found that the loss in scattered x-ray intensity is due to transient demagnetization, not stimulated emission. This clarification has important ramifications for future singl...
Researchers developed a precise method to measure ultrafast magnetization changes in materials by observing emitted terahertz radiation. The technique enabled the detection of an acoustically-driven ultrafast magnetization signal, confirming its accuracy and sensitivity.
Scientists at the University of Queensland have improved the modeling of nuclear structure in francium atoms, allowing for more precise calculations of their magnetic moments. The new method enables uncertainties four times smaller than previous best values, which is crucial for testing fundamental physics theories.
Researchers at Berkeley Lab used Advanced Light Source to produce 3D reconstructions of magnetization patterns in two rare meteorite samples. The study reveals a parent body with both melted and unmelted parts, pointing to a large planetesimal with a molten metallic core.
Researchers at Spintec Laboratory and CNRS/Thales Laboratory developed a non-magnetic system to detect spin information at low power. This breakthrough enables the creation of ferroelectricity-based spintronic devices that consume significantly less energy than traditional systems.
Magnetoacoustic waves have been directly observed and found to travel long distances with larger amplitudes than expected. The findings open up new avenues for manipulation of these waves at room temperature, making them suitable for carrying information or driving small motors.
Researchers developed time-resolved magnetic laminography technique to visualize magnetic state in three dimensions. This allows for understanding of complex magnetization patterns and behavior, crucial for next-generation data storage and processing.
The study achieved time-resolved measurement of a single magnetic memory event using a tunnel junction, revealing two stages: incubation and actual reversal. The researchers developed a strategy to minimize time fluctuations, reducing the total time for the reversal event to less than 0.3 nanoseconds.
Scientists have discovered a new microscopic process called optical intersite spin transport (OISTR) that allows light to trigger a displacement of electrons between atoms, influencing the local magnetization. This process is accompanied by a leveling of electron reservoirs and can be tailored by bringing together specific types of atoms.
Researchers predict a new type of multiferroic material that combines ferromagnetism and electric polarization, potentially leading to efficient magnetic reading and writing. The study suggests that diverse magnetoelectric couplings can be achieved in thin layers, making it a promising direction for practical applications.
Researchers from the University of Jyväskylæ have discovered that moving domain walls in superconducting devices generate voltage, causing losses. This finding has significant implications for magnetic racetrack memory applications, which require low current resistance.
Researchers from NUS have developed a new way of switching magnetization at room temperature using 'spin waves', which could lead to more energy-efficient chips. This approach avoids moving charges, resulting in less Joule heat and power dissipation.
Researchers observe anomalous spin-orbit torque in ferromagnetic films without spin-orbit coupling, indicating a new competition between spin alignment and magnetization. This finding has implications for energy-efficient magnetic-memory technology.
Scientists at the University of Tokyo developed an efficient magnetization reversal component using gallium manganese arsenide, reducing current densities by one to two orders of magnitude compared to previous methods. This breakthrough aims to advance spintronics, a promising technology for low-power logic and memory devices.
Researchers developed an alternative method to evaluate local magnetization switching efficacy in ultrathin ruthenium-cobalt-ruthenium films with a wolfram layer added. The study revealed that adjusting the materials' layers thickness can change magnetic parameters, increasing spin switching efficacy.
Researchers have developed a prototype of energy-efficient data storage devices using rapid spin switching technology. The device achieves minimal energy losses and switches between states in just 3 picoseconds, making it promising for compact future computers.
Researchers used ultrashort x-ray pulses to monitor absorption of circularly polarized x-rays by Fe and Gd atoms during ultrafast demagnetization. They found that the demagnetization process at Gd atoms is significantly faster than in pure Gd.
Researchers at the University of Basel use diamond quantum sensors to study the strength and alignment of magnetization in two-dimensional materials. They found that strain in the lattice is responsible for the unusual magnetic properties of chromium triiodide, which was previously unknown.
Researchers discovered that the electric field component of a terahertz pulse plays a key role in large magnetization modulation of ferromagnetic nanoparticles. This allows for ultrafast coherent magnetization reversal within a picosecond, essential for ultrahigh-speed spintronics.
Researchers have demonstrated a new way to perform functions essential to future computation at speeds trillions of times faster than current commercial devices. The team created a nanoscale spintronic semiconductor device that can partially switch between specific magnetic states in under a picosecond.
Researchers at Tokyo Institute of Technology demonstrate magnetization reversal in thin films of BFCO at room temperature, overcoming previous limitations. This breakthrough paves the way for low-power-consumption magnetic memory devices.
Researchers at ETH Zurich found that most angular momentum is transferred to the lattice during ultrafast demagnetization, twisting the sample as magnetization rapidly decreases. The discovery offers guidance for technological applications of ultrafast optical switching.
A team of researchers has successfully detected hydrogen using the Extraordinary Hall Effect in cobalt-palladium thin films. The technique demonstrates high sensitivity and could be used to detect leaks in hydrogen-powered vehicles and fueling stations, enhancing gas detection for a clean energy source.
Scientists at Johannes Gutenberg University Mainz developed a technique to visualize and film the high-speed switching processes of tiny magnetic structures. This method enables researchers to investigate magnetization behavior with sub-nanosecond time resolution, opening up new possibilities for optimizing magnetic components.
Researchers have discovered the elementary steps of magnetization loss in ferrimagnets when suddenly heated. The process occurs on two time scales: a fast scale of 1 picosecond (ps) where atomic spins heat up, and a slower scale of 100 nanoseconds (ns).
Scientists from Boston College create a new class of layered materials with tunable magnetic anisotropy by adjusting the spin-orbit coupling using mixed halide chemistry. This breakthrough enables the engineering of ultrathin magnetic devices with unprecedented control over magnetism.
A new model of nanometric square material's changing magnetic state could be the basis for future ultrahigh density data storage. By controlling the interactions between individual nanomagnets, researchers aim to improve data storage in electronic and medical applications.
A group of Brazilian researchers have discovered an ultrafast way to magnetize matter using minimal energy. Using a technique called magnetization by light, they were able to align the spins of 6,000 electrons in just 50 picoseconds with a single photon.
Researchers at NIST and Johns Hopkins University discovered a zero-field switching effect that enables stable, non-volatile memory devices without magnetic fields. This breakthrough could lead to smaller, lower-power computing devices.
Researchers at MIPT created a spin diode by placing ferromagnetic layers between two antiferromagnetic materials, allowing for tunable resistance and resonant frequency. This design triples the frequency range of conventional spin diodes while maintaining sensitivity comparable to semiconductor analogs.