Magnetic Anisotropy
Articles tagged with Magnetic Anisotropy
Detecting the hidden magnetism of altermagnets
Altermagnets exhibit unique magnetic structure due to unconventional symmetries, enabling spin-polarized electron currents. A new method reveals this hidden structure using circularly polarized light and resonant photoelectron diffraction.
Quantum eyes on energy loss: diamond quantum imaging for next-gen power electronics
Researchers developed a novel method to analyze energy losses in soft magnetic materials, using diamond quantum sensors and protocols for kHz and MHz frequencies. The study reveals near-zero phase delay up to 2.3 MHz in high-frequency inductors, indicating negligible energy losses.
Smarter memory: next-generation RAM with reduced energy consumption
Researchers from Osaka University have developed a new technology to lower power consumption for modern memory devices, enabling an electric-field-based writing scheme. The proposed technology could provide an alternative to traditional RAM and is a promising step towards implementing practical magnetoelectric (ME)-MRAM devices.
Spintronics memory innovation: A new perpendicular magnetized film
A new cobalt-manganese-iron alloy thin film demonstrates high perpendicular magnetic anisotropy, a key aspect for fabricating MRAM devices using spintronics. This breakthrough offers a new candidate for memory materials and contributes to the development of novel spintronics memory devices.
Largest magnetic anisotropy of a molecule measured at BESSY II
Scientists at the Max Planck Institute and Helmholtz-Zentrum Berlin successfully measure the largest magnetic anisotropy of a single molecule using THz electron paramagnetic resonance spectroscopy. This breakthrough has significant implications for energy-efficient data storage, with potential applications in various fields.
Discovery of a new hall effect: Does it violate Onsager's reciprocal theorem?
Scientists have observed an anisotropic anomalous Hall effect in a spinel oxide thin film with conical magnetic anisotropy. The findings propose a physical model that explains the phenomenon without violating Onsager's reciprocal theorem.
Spintronics: X-ray microscopy unravels the nature of domain walls
A new study at BESSY II analyzed the formation of skyrmions in ferrimagnetic thin films of dysprosium and cobalt. The researchers directly observed Néel-type skyrmions using scanning transmission X-ray microscopy, revealing their domain wall type for the first time.
A breakthrough in magnetic materials research could lead to novel ways to manipulate electron flow with much less energy loss
Scientists have discovered new magnetic interactions in TbMn6Sn6, a Kagome layered topological magnet, which could be used to customize electron flow and reduce energy loss. The material's unique structure and electronic band structure make it an ideal candidate for quantum computing, magnetic storage media, and high-precision sensors.
Magnetic nanoparticles in biological vehicles individually characterized for the first time
A multidisciplinary research group uses magnetotactic bacteria to create nanomagnetic structures, which can be steered through the human body via external magnetic fields. They have developed a new method to measure the magnetic properties of individual nanomagnets in biological entities, enabling precise control over these structures.
A-list candidate for fault-free quantum computing delivers surprise
Physicists at Rice University have found telltale signs of antiferromagnetic spin fluctuations coupled to superconductivity in uranium ditelluride, a rare material promising fault-free quantum computing. The discovery upends the leading explanation of how this state of matter arises in the material.
Advanced ferromagnetic tunnel junction using two-dimensional hexagonal-BN
Researchers discovered a new material, h-BN, that induces interfacial perpendicular magnetic anisotropy (IPMA) with a high tunnel magnetoresistance (TMR) ratio of up to 1,000%, enabling flexible design in ferromagnetic tunnel junctions.
Shining light on two-dimensional magnets
A team of researchers has successfully controlled the magnetic state of two-dimensional van der Waals magnets using light, enabling efficient data storage and fast data processing. By inducing 'magnetic anisotropy' with ultrashort pulses of light, the scientists can manipulate the material's magnetic properties on demand.
Novel technology reduces energy consumption of MRAM and AI hardware
Scientists at Osaka University have successfully controlled nano-sized magnets by heating, amplifying microwave signals and achieving a higher efficiency than current STT-MRAM technology. This breakthrough reduces power consumption of magnetoresistive random access memory (MRAM) and artificial intelligence (AI) devices.
Mixed halide chemistry can be used to control magnetism in ultrathin magnetic devices
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.
Exploring the magnetism of a single atom
The team developed a method to measure the energy needed to change magnetic anisotropy in a single Cobalt atom, revealing its maximum magnetic anisotropy energy and longest spin lifetime. This breakthrough presents a single-atom model system that can be used as a future qubit for quantum computing.
Electrical control of single atom magnets
Scientists at UCL and international partners discovered a new mechanism controlling magnetic anisotropy at the atomic scale, enabled by electrical coupling between metal substrate and magnetic atoms. This discovery opens up new avenues for designing smallest devices for information processing, data storage, and sensing.