Articles tagged with Quantum Magnetism
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Scientists at Helmholtz-Zentrum Dresden-Rossendorf discovered oscillation states, or Floquet states, in tiny magnetic vortices using minimal energy. These findings could facilitate coupling between electronics, spintronics, and quantum devices.
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.
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.
A macroscopic device has been designed to reduce eddy-current damping, allowing for precise measurements of physical phenomena like gravity. The system uses a graphite disk and rare earth magnets, enabling ultra-precise sensors that can be used in classical and quantum physics research.
The Rice Laboratory for Emergent Magnetic Materials aims to investigate fundamental interactions of magnetism and its role in next-generation technologies. Researchers will focus on emergent phases of matter, including unconventional superconductivity and quantum magnetism.
In a groundbreaking study, researchers discovered that strong magnetic fields can reverse the overall direction of angular momentum in magnetovortical matter. This finding challenges established theories and highlights the previously underestimated role of orbital motion in certain regimes.
Researchers have developed a new type of exotic quantum material that can maintain its quantum properties when exposed to external disturbances, paving the way for robust quantum computers. The breakthrough uses magnetism to create stability, making it an important step towards realising practical topological quantum computing.
The University of Oldenburg has secured funding for three research clusters: Hearing4all, Ocean Floor, and NaviSense. These clusters aim to improve hearing loss prediction, diagnosis, and treatment, as well as animal navigation research. The funding enables the continuation of high-quality research with social relevance.
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.
KAIST and Mainz researchers have predicted a 3D magnon Hall effect, demonstrating the ability of magnons to move freely and complexly in 3D space. This breakthrough could lead to novel functionalities in next-generation computing structures.
Researchers have found a rare form of one-dimensional quantum magnetism in the metallic compound Ti₄MnBi₂, offering evidence into a previously theoretical phase space. The discovery bridges the gap between traditional magnetic insulators and complex electronic systems.
Scientists at Rice University have discovered how a disappearing electronic pattern in a quantum material can be revived under specific thermal conditions. The finding opens new doors for customizable quantum materials and in-situ engineering, where devices are manufactured or manipulated directly at their point of use.
A team of physicists at Rice University has made a breakthrough in understanding the behavior of strange metals by leveraging quantum information theory. Electron entanglement peaks at a critical transition point, shedding new light on the exotic properties of these materials.
Researchers found dramatically enhanced heat oscillations in ZrTe₅ under strong magnetic fields and low temperatures, attributed to a novel mechanism involving electron-phonon interactions. This phenomenon is counterintuitive and has significant implications for understanding quantum transport in semimetals.
Empa researchers successfully realized a one-dimensional alternating Heisenberg model with a synthetic material, demonstrating strongly entangled spins and long-range correlations. In contrast, an evenly connected homogeneous chain develops an energy gap, exhibiting strong pairwise bonds and rapidly decreasing correlations.
Researchers at Osaka Metropolitan University developed new formulas to calculate key quantum informative quantities, including entanglement entropy and mutual information. These simplified expressions offer fresh perspectives into quantum behaviors in materials with different physical characteristics.
Researchers at the University of Gothenburg have made a breakthrough in developing a new low-cost computer using spintronics, which enables information transmission at room temperature. The study demonstrates the ability to control and synchronize spin waves in complex networks, paving the way for the next generation of Ising machines.
Scientists at Shibaura Institute of Technology discovered quasi-1D dynamics in a triangular molecular lattice, contradicting the expected 2D behavior of quantum spin liquids. This finding was achieved through advanced ESR and muon spin rotation experiments combined with theoretical modeling.
Researchers aim to develop room-temperature superconductors using AI and quantum geometry, potentially revolutionizing energy efficiency. The project aims to push boundaries of quantum materials science and superconductivity.
The study found clear evidence for a quantum spin ice state in the material Ce2Sn2O7, with the experimental data well described by recent theoretical models. The findings may inspire technology for quantum computers and pave the way towards future unifications of theory and experiments.
Researchers have discovered a previously unverified gap in the electronic band structure of MnBi2Te4, a topological insulator. The team found that the material is gapless in equilibrium but develops a gap when exposed to different orientations of circularly polarized light.
The quantum Hall effect produces a magnetic current in addition to the well-known electric current, allowing for more efficient devices. This breakthrough could enable the creation of new types of electronic devices without energy loss.
A team of researchers has found evidence of quantum spin liquids in pyrochlore cerium stannate, governed by complex quantum rules. The study reveals emergent properties resembling fundamental aspects of our universe, including light and matter interactions.
Researchers at the University of Birmingham create a ruthenium-based material with complex disordered magnetic properties, fulfilling the Kitaev quantum spin liquid state requirements. This breakthrough opens up new pathways for exploring these states of matter and provides a route to magnetic properties that don't follow classical laws.
Scientists at the Paul Scherrer Institute have found a quantum phenomenon known as time-reversal symmetry breaking occurring at the surface of the Kagome superconductor RbV₃Sb₅ at temperatures up to 175 K. This discovery sets a new record for the temperature at which this phenomenon is observed among Kagome systems.
Researchers at Empa's nanotech@surfaces laboratory have developed a method to link many spins in a controlled manner, enabling precise measurement of their interactions. This achievement brings theoretical models of quantum physics one step closer to reality.
The study reveals that localized electrons drive magnetism in FeSn thin films, challenging existing theories about magnetism in kagome metals. The research could guide the development of materials with tailored properties for advanced tech applications.
Researchers successfully visualized tiny magnetic regions, known as magnetic domains, in a specialized quantum material using nonreciprocal directional dichroism. They also manipulated these regions by applying an electric field, offering new insights into the complex behavior of magnetic materials at the quantum level.
Researchers have successfully achieved spin squeezing in a more accessible way, enabling precise measurements with quantum-enhanced metrology. This breakthrough may lead to new portable sensors for biomedical imaging and atomic clocks.
An international team has discovered 3D quantum spin liquids in Nickel Langbeinites, a new class of materials. The discovery was made using neutron experiments and theoretical modelling, which revealed an island of liquidity at the centre of a strongly frustrated lattice.
Researchers developed a new 2D quantum sensing chip using hexagonal boron nitride that can simultaneously detect temperature anomalies and magnetic fields in any direction. The chip is significantly thinner than current quantum technology for magnetometry, enabling cheaper and more versatile sensors.
Scientists have developed a method to simulate gravitational waves in the lab using cold atoms, a phenomenon similar to gravitational waves. This breakthrough allows for easier study and understanding of these cosmic waves, which are challenging to detect.
Physicists at the University of Cologne have discovered that magnetic elementary excitations in BaCo2V2O8 crystals are bound by both attractive and repulsive interactions. The study found that repulsively bound states, which were unexpected due to their lower stability, can exist in these materials.
Researchers at Chalmers University of Technology have created a unique system that combats the trade-off problem between operation complexity and fault tolerance. The system uses harmonic oscillators to encode information linearly, offering a seamless gradient of colors and providing far richer possibilities than traditional qubits.
Researchers have developed a highly sensitive diamond quantum magnetometer that can achieve practical ambient condition magnetoencephalography. The novel magnetometer uses a single crystalline diamond to detect magnetic fields, achieving record sensitivities of up to 9.4 pT Hz-1/2 in the frequency range of 5 to 100 Hz.
Researchers successfully synthesized centimetre-sized single crystals of PrMgAl11O19, a new spin liquid candidate. The presence of approximately 7% disorder at the Pr3+ site was confirmed using single-crystal X-ray diffraction measurements.
Physicists from Princeton University have discovered the microscopic basis of kinetic magnetism, a novel form of quantum magnetism. They directly imaged the unusual type of polaron that gives rise to this magnetism, using ultracold atoms in an artificial laser-built lattice.
MIT physicists arrange dysprosium atoms as close as 50 nanometers apart, a limit previously set by the wavelength of light. This allows for enhanced magnetic forces, thermalization, and synchronized oscillations, opening new possibilities for studying quantum phenomena.
Scientists have found a new way to create ordered states in quantum systems by increasing particle motility, leading to potential breakthroughs in quantum computing and magnetic memory. This discovery extends the concept of active matter to the quantum realm and has far-reaching implications for technology development.
Researchers analyzed genomes of 363 bird species and found significant variations in cryptochrome 4 gene, indicating adaptation to environmental conditions. This specialization could be related to magnetoreception in migratory birds.
Scientists at Tohoku University and Japan Atomic Energy Agency develop experiments to manipulate the 'electron universe' geometry within magnetic materials. They successfully detected a distinct electric signal, paving the way for innovative spintronic devices.
Researchers create butterfly-shaped nanographene with four unpaired π-electrons, demonstrating potential for advancements in quantum computing. The unique structure has highly correlated spins, extending coherence times of spin qubits.
A team of international researchers has developed a hybrid device combining a stable proximitized-superconductor with magnetism, allowing precise control over its properties. This innovation could lead to significant advancements in quantum computing by stabilizing quantum bits and overcoming external influences.
Researchers at Caltech have demonstrated quantum Barkhausen noise, which is the collection of little magnets flipping in groups. This effect is caused by quantum tunneling and co-tunneling, leading to macroscopic changes in magnetization, even without classical effects.
An international team has gained insights into special states of matter through experiments at BER II, finding a spin-nematic phase formed under extreme magnetic fields. The results suggest a condensate of bosonic Cooper pairs, analogous to superconductivity.
Yonglong Xie, a Rice University assistant professor, has received an $888,555 NSF CAREER Award to explore magnon-based quantum technology. He aims to create synthetic matter and next-generation devices with unprecedented functionalities.
Physicists at the University of Southampton successfully detect weak gravitational pull on microscopic particles using a new technique. The experiment, published in Science Advances, could pave the way to finding the elusive quantum gravity theory.
Researchers at MIT have observed a rare electronic state in which electrons become fractions of their total charge without the need for external magnetic fields. This effect, known as the fractional quantum anomalous Hall effect, has significant implications for the development of topological quantum computing.
Researchers have discovered a new state of matter characterized by chiral currents, generated by cooperative electron movement. This phenomenon has implications for the development of new electronic devices and technologies, including optoelectronics and quantum technologies.
A Vienna University of Technology team successfully changed the type of magnetism in a single crystal by applying pressure, reducing frustration and increasing temperature of magnetic phase transition. This discovery could lead to novel materials for secure data storage and quantum computers.
The São Paulo School of Advanced Science on Quantum Materials will select and support 100 graduate students and young researchers to focus on fundamental, theoretical, and experimental aspects of quantum materials. The program will cover topics like superconductivity, electronic topology, and complex magnetic configurations.
Antiferromagnets exhibit fluctuations that can reveal information about their weakly magnetic material. Researchers developed a new method to detect these ultrafast fluctuations using ultrashort light pulses, leading to the discovery of telegraph noise.
Researchers at Rice University have discovered a way to transform a rare-earth crystal into a magnet by using chirality in phonons. Chirality, or the twisting of atoms' motion, breaks time-reversal symmetry and aligns electron spins, creating a magnetic effect.
Researchers successfully trapped electrons in a three-dimensional material, creating an electronic flat band that can lead to exotic behavior such as superconductivity. The kagome-inspired geometry of the crystal allows for stable trapping of electrons in all three dimensions.
Scientists at the University of Würzburg validated an alternate theory proposing the spinaron effect, where individual cobalt atoms exhibit perpetual motion and interact with electrons in a unique manner. This discovery could lead to breakthroughs in magnetic information encoding and transportation, making IT more energy-efficient.
Researchers at IBS Center for Quantum Nanoscience created a novel electron-spin qubit platform assembled atom-by-atom on a surface, demonstrating ability to control multiple qubits. This breakthrough enables application of single-, two-, and three-qubit gates.
A new device design inspires improved integrated circuit designs by visualizing electric current flow lines around sharp bends. The research enables better understanding of heat generation in electronic devices, leading to more efficient circuit creation and reduced risk of overheating.
Researchers have created an 'Alice ring' that verifies a decades-old theory on monopole decay, opening doors to understanding how these structures function in the universe. The discovery offers a glimpse into a world where particle physics is turned on its head.
A new study by the University of Oldenburg team confirms that radio waves in the VHF range above 116MHz have no impact on migratory birds' magnetic compass sense. This discovery debunks previous theories suggesting mobile communication networks affect the birds' navigation.
Researchers from Aalto University have successfully detected a triplon, a quantum entanglement wave, in an artificial quantum magnet created using small organic molecules. This achievement marks the first direct observation of triplons using real-space measurements.