Articles tagged with Quantum Magnetism
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A team of researchers has discovered a way to harness random telegraph noises in semiconductors, generating high-amplitude signals and manifesting inherent quantum states. By introducing vanadium into tungsten diselenide, they created a device that can switch between two stable states using voltage polarity.
A team at the University of Washington has made a breakthrough in quantum computing by detecting signatures of 'fractional quantum anomalous Hall' (FQAH) states in semiconductor materials. This discovery marks a significant step towards building stable qubits and potentially developing fault-tolerant quantum computers.
Researchers at Oak Ridge National Laboratory have developed a novel method to transform normal insulators into magnetic topological insulators using electric fields. This breakthrough could lead to high-speed, low-power electronics with reduced energy consumption.
An international team of scientists has successfully measured the electron spin in matter for the first time using kagome materials. The results could revolutionize the study of quantum materials, with potential applications in renewable energy, biomedicine, electronics, and quantum computing.
A new kind of superconducting vortex has been found, dividing the magnetic flux into a wider range of values than previously thought. This discovery challenges the prevailing understanding of superconductivity and potentially opens up new possibilities for superconducting electronics.
Researchers have discovered a new phase of liquid magnetism in layered helical magnets, where magnetic dipoles behave like 'flattened puddles' with varying alignment between layers. This phenomenon, predicted by a computational model, may explain the unusual electronic behavior observed in these materials.
Scientists at the University of Electro-Communications successfully measured the effects of an ultra-high magnetic field on a transition metal oxide, discovering signs of a new magnetic superfluid state. This achievement has significant implications for spintronics technology and potential applications in quantum computing.
A comprehensive manual has been developed to engineer spin dynamics in nanomagnets, revealing mechanisms behind magnon interactions. The rules formulated by the researchers can help debug and design nanomagnet devices for next-generation computation technologies.
Researchers from the ARC Centre of Excellence in Exciton Science have demonstrated a new chip-scale approach using OLEDs to image magnetic fields, offering a potential solution for portable quantum sensing. This technique enables small, flexible, and mass-producible sensing without requiring input from a laser or cryogenic temperatures.
Researchers found that two outermost electrons from each nickel ion behaved differently, cancelling each other out in a phenomenon called a spin singlet. This led to the discovery of two families of propagating waves at dramatically different energies, contradicting expectations of local excitations.
A team of researchers at Vienna University of Technology and Toho University in Japan investigated the electrical resistance of κ-(BEDT-TTF)2Cu2(CN)3 as a function of temperature and pressure. They found that the material exhibits properties similar to those of helium-3, contradicting the theory of a quantum spin liquid.
Researchers at Chalmers University of Technology have discovered a two-dimensional magnetic material that can work in room temperature. This breakthrough paves the way for energy-efficient and faster data storage and processing in computers and mobile devices.
A team of researchers has created a mixed magnon state in an organic hybrid perovskite material by harnessing the Dzyaloshinskii–Moriya-Interaction. This allows for magnon-magnon coupling, which is crucial for processing and storing quantum computing information. The work expands the number of potential materials for creating hybrid ma...
Researchers developed a new tool to disentangle electronic states in layered quantum materials, revealing surprising results that defy theoretical predictions. By analyzing vibrations and energy measurements, scientists can 'see' how electrons move through the layers.
Researchers developed a platform to study superconducting magnetic detection and phase transitions under high pressure using silicon vacancy defects. They successfully detected pressure-induced magnetic phase transitions in rare-earth magnets and measured the critical temperature-pressure diagram of a superconductor.
Researchers at ct.qmat created ferromagnetic topological insulator MnBi6Te10 with stronger magnetic field than its antiferromagnetic predecessor. The material's surface exhibits ferromagnetic properties, enabling lossless current conduction.
Research using a quantum computer has designed and characterized tailor-made magnetic objects using qubits, opening up new approaches to develop materials and robust quantum computing. The study demonstrates the ability to create magnetic quasicrystal lattices that can host states beyond classical information technology.
Physicists at Rice University have found that magnetism subtly modifies the landscape of electron energy states in iron-germanium crystals, promoting and preparing for the formation of a charge density wave. This is one of the few known examples of a kagome material where magnetism forms first, leading to charges lining up.
Researchers at MIT have proposed a new approach to making qubits and controlling them using beams of light from two lasers of slightly different colors. This method enables the direct manipulation of nuclear spin, allowing for precise identification and mapping of isotopes, as well as improved coherence times for quantum memory.
Scientists have created a new class of nonvolatile memory devices using antiferromagnets that can store stable memory states and read them incredibly quickly. This breakthrough could lead to faster memory devices with performance beyond the terahertz regime.
Researchers develop a new optical method to detect topological phases in magnetic materials using Raman scattering. The technique shows promise for validating magnon topology and could lead to more sustainable technological devices with lower energy consumption.
Researchers at Princeton University have developed a new technique to measure the spatial structure and time-varying nature of magnetic noise. This breakthrough opens up new possibilities for understanding quantum spin liquids, materials with bizarre quantum behaviors that were previously difficult to analyze experimentally.
Researchers have discovered emergent interfacial ferromagnetism in 2D antiferromagnet heterostructures, showing enhanced electric-field tunability. This breakthrough has exciting implications for exploring exotic magnetic phases and engineering novel spintronic devices.
A Collaborative Research Centre investigates animal navigation using the Earth's magnetic field. The study focuses on vertebrates, including birds and fish, aiming to protect endangered migratory species.
Researchers clarify key aspects of thermal Hall effect in magnetic insulator, reaching novel conclusions and advancing understanding of topological quantum matter. The study utilizes ruthenium chloride to demonstrate the first example of a magnetic insulator exhibiting the thermal Hall effect from quantum edge modes.
The DiaQNOS project aims to develop quantum sensors for improved brain tumor surgery. Magnetic field sensors will refine neuronavigation, enabling more precise incision paths. Researchers from Mainz University and partners will create a device suitable for use in surgery.
Researchers at Shinshu University demonstrate the transformation of isolated skyrmions into bimerons in a magnetic disk, showcasing a potential new operation for future computing architectures. The discovery opens up novel spintronic applications based on different topological spin textures.
A team of researchers has developed a prototype of a quantum microscope that can see electric currents, detect fluctuating magnetic fields, and even see single molecules on a surface. The microscope uses atomic impurities and van der Waals materials to achieve high resolution sensitivity and simultaneous imaging of magnetic fields and ...
Researchers improved the Kitaev spin liquid model by freezing electrons in space, allowing only spin contributions at low temperatures. The study successfully explained experimental data and predicted a topological phase in the presence of an external magnetic field.
A team led by Prof. Alan Tennant and Dr Allen Scheie gain deeper insights into the interactions between spins in KCuF3, a simple model material for Heisenberg quantum spin chain. They use neutron scattering to study spatial and temporal evolution of spins.
Researchers have developed a scalable, fully coupled quantum-inspired processor that can solve optimization problems efficiently. The system uses an array calculator approach to divide calculations among multiple chips, reducing data transmission and increasing performance.
Scientists have developed a magnetized state in monolayer tungsten ditelluride, allowing for controlled electron flow and potential applications in non-volatile memory chips. The discovery enables the creation of smaller, more energy-efficient devices that consume less power and dissipate less energy.
Researchers use lasers to cool atoms to absolute zero, revealing new phenomena in an unexplored realm of quantum magnetism. The creation of SU(N) matter opens a gateway to understanding the behavior of materials and potentially leading to novel properties.
An international research team led by the University of Göttingen has discovered unexpected quantum effects in naturally occurring double-layer graphene. The study reveals a variety of complex quantum phases emerging at temperatures near absolute zero, including magnetic behavior without external influence.
Researchers at MIT have developed a method to enable quantum sensors to detect any arbitrary frequency without losing nanoscale spatial resolution. The new system, called a quantum mixer, injects a second frequency into the detector using microwaves, enabling detection of signals with desired frequencies.
Researchers at Boston College have discovered a new particle known as the axial Higgs mode, a magnetic relative of the mass-defining Higgs Boson particle. The detection was made possible by using light scattering and quantum simulator techniques in a tabletop experiment at room temperature.
Researchers at Osaka Metropolitan University used quantum dots to model the electron scattering Kondo effect in ferrimagnetic substances. The T-shaped lattice arrangement led to a surprising suppression of electrical conductivity, contrary to initial expectations.
A team of researchers used resonant inelastic X-ray scattering to study the behavior of electron spins in iron selenide, a material that exhibits directionally-dependent electronic behavior. They found that high-energy spin excitations are dispersive and undamped, indicating a well-defined energy-versus-momentum relationship.
Researchers at Princeton University have discovered that electrons in a crystal exhibit linked and knotted quantum twists, raising questions about the quantum properties of electronic systems. The study brings together ideas in condensed matter physics, topology, and knot theory to create a new understanding of quantum mechanics.
Researchers have created a giant magnetochiral anisotropy effect in topological insulator nanowires, allowing for highly controllable current rectification. This discovery opens the pathway for technological applications and demonstrates a significant step towards achieving topological qubits.
A team of scientists used a quantum simulator to study the behavior of a complex quantum system, finding that it exhibits characteristics similar to fluid dynamics. The research also showed that this phenomenon can be observed in the flights of bees, as well as in unusual stock market movements.
Researchers use computational detective work to verify the existence of a 3D quantum spin liquid in cerium zirconium pyrochlore, overcoming decades-long challenge. The material exhibits fractionalized spin excitations, where electrons do not arrange their spins in relation to neighbors.
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 discovered that light can trigger magnetism in normally nonmagnetic materials by aligning electron spins. This breakthrough could enable the development of quantum bits for quantum computing and other applications.
Ghimire will receive $560,000 in grant money to synthesize and study topological materials with novel properties. His work aims to design materials for faster, thinner, and more energy-efficient devices, paving the way for quantum computing.
Researchers have created a catalogue of materials with exotic quantum properties, enabling large-scale searches for promising candidates. The team identified over 700 materials exhibiting potential flat bands, which could lead to breakthroughs in memory devices and power transport.
Researchers have discovered a new type of Fermi arc that appears at low temperatures when the material becomes antiferromagnetic, offering a new path for electronics based on electron spins. The arcs can be switched on and off quickly by applying a magnetic pulse, potentially leading to more efficient information technology.
Scientists have achieved efficient quantum coupling between two distant magnetic devices, which can host magnons and exchange energy and information. This achievement may be useful for creating new quantum information technology devices.
Researchers have discovered that magnetic spin waves can propagate on circular paths in certain materials, enabling efficient and compact information transfer. This phenomenon, known as Landau quantization, has significant implications for the development of new electronic components.
Magnetic topological materials exhibit unique properties due to interweaved magnetism and topology, enabling chiral channels of electrons and spins. The field has led to discoveries of magnetic Weyl semimetals and antiferromagnetic topological insulators.
Researchers at the ARC Centre of Excellence in Exciton Science created the first-ever 2D map of the Overhauser field in organic LEDs, revealing local spin variations that can impact device performance. The study highlights challenges in miniaturizing organic-based sensing technologies for practical applications.
A team of researchers from Japan Advanced Institute of Science and Technology successfully detects thermally excited magnons in a yttrium iron garnet sample using a diamond-based quantum sensor. This breakthrough enables the detection of thermal magnon currents, opening doors to heat-controlled quantum devices.
Researchers at Japan Advanced Institute of Science and Technology have developed a novel method to fabricate diamond probes with controlled shape and higher sensitivity. These probes enabled the imaging of periodic magnetic domain structures in ferromagnets, showing promise for quantum applications.
Researchers at MIT have directly observed the interplay of interactions and quantum mechanics in a rotating fluid of ultracold atoms. The team created a spinning cloud of sodium atoms, which formed a needle-like structure before breaking into a crystalline pattern resembling miniature quantum tornadoes.
Researchers at Harvard have successfully observed quantum spin liquids, a previously unseen state of matter that has been elusive for nearly 50 years. By manipulating ultracold atoms in a programmable quantum simulator, the team was able to create and study this exotic state, which holds promise for advancing quantum technologies.
Researchers from diverse fields have converged on a new definition of quantum nanoscience, placing coherence at its center. The review highlights the nanoscale's role in harnessing useful quantum effects, with applications for industries and governments.
A team at Heidelberg University has successfully demonstrated a programmable control of spin interactions in isolated quantum systems. By adopting methods from nuclear magnetic resonance, the researchers used microwave pulses to modify the atomic spin and stall its reorientation. This breakthrough opens up new possibilities for Quantum...
Physicists from Exeter and Zaragoza develop a theory to engineer non-reciprocal flows of quantum light and matter, paving the way for novel devices with directional character. This breakthrough may lead to the creation of quantum technologies requiring efficient, directional energy transfer.
Scientists have fabricated chains of triangular polycyclic aromatic hydrocarbons with spin 1, exhibiting Kondo resonances characteristic of spin ½ quantum objects. This breakthrough enables the exploration of linear spin chains and two-dimensional networks for quantum computation.
Researchers have classified magnetic materials using a unified description, solving a longstanding problem. The new system provides a complete mathematical characterization of magnetic structures and has implications for quantum applications.