Electron Spin
Articles tagged with Electron Spin
Why does life prefer one “hand” over the other? New study points to electron spin
Researchers found that electron spin interacts differently with mirror-image molecules, causing small but meaningful differences in behavior during dynamic processes. This asymmetry could lead to the dominance of a single 'hand' in biology, offering a possible route toward understanding how one molecular form came to dominate.
New microscopy technique reveals hidden magnetic chemistry in living systems
A University of Tokyo team developed a fluorescence imaging method to track short-lived molecular intermediates and their magnetic responses in real time. The approach isolates spin-dependent part of chemistry, revealing how magnetically sensitive intermediates appear and disappear.
‘Spin-flip’ in metal complexes can help solar cells leap beyond limits
Researchers successfully captured singlet-fission-amplified excitons with a molybdenum-based emitter, achieving 130% quantum yield and pushing the limits of solar cell efficiency. The team used a metal complex called 'spin-flip' emitter to harvest multiplied energy from singlet fission.
Physicists open door to future, hyper-efficient ‘orbitronic’ devices
Physicists at the University of Utah have developed a new, streamlined system for generating orbital angular momentum in electrons, allowing for cheaper and more abundant materials. The innovation uses natural symmetry and vibrations of atoms to control electron momentum.
A new class of strange one-dimensional particles
Researchers have identified a new class of one-dimensional particles, dubbed anyons, which exhibit properties between bosons and fermions. The discovery opens up new possibilities for investigating fundamental physics in realistic experimental settings.
Scientists capture nanoscale “spin maps” in chiral perovskites
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.
Quantum researchers observe real-time switching of the magnet in the heart of a single atom
Researchers from Delft University of Technology have successfully measured the nuclear spin of an on-surface atom in real time, achieving 'single-shot readout'. This breakthrough enables control over the magnetic nucleus and opens up possibilities for quantum sensing at the atomic scale.
Magnetic surfaces found to steer Alzheimer’s-linked protein growth
Researchers discovered that magnetized surfaces significantly influence amyloid protein assembly, forming more fibrils and longer structures when aligned in one direction. The study suggests a new physical factor, Chiral-Induced Spin Selectivity (CISS), plays a direct role in protein self-assembly.
Gold clusters show promise as scalable options for quantum computers, sensors
Researchers at Penn State have demonstrated how gold nanoclusters can mimic the spin properties of trapped atomic ions, allowing for scalability in quantum applications. The clusters can be easily synthesized in large quantities and exhibit unique Rydberg-like spin-polarized states that mimic superpositions.
A quantum tech “holy grail”? Tiny device controls electron spins for future tech
A team of physicists has developed a tiny device that can detect and control antiferromagnetic resonance, enabling ultrafast and energy-efficient electronics. The breakthrough allows for a compact, electrically tunable platform to manipulate electron spins.
Resistance is futile: Superconducting diodes are the future
A team led by Junichi Shiogai successfully observes the superconducting diode effect in an Fe(Se,Te)/FeTe heterostructure, exhibiting rectification under various temperature and magnetic fields. This breakthrough paves the way for ultra-low energy electronics built from superconductors.
How tiny particles coordinate energy transfer inside cells uncovered
A team of scientists discovered that electrons and protons are closely linked in certain biological crystals, influencing proton transfer. This connection has implications for understanding energy and information transfer in life.
Pushing boundaries: Detecting the anomalous Hall effect without magnetization in a new class of materials
Researchers detect anomalous Hall effect in collinear antiferromagnets with non-Fermi liquid behavior, revealing a 'virtual magnetic field' that boosts the phenomenon. The findings open up new possibilities for information technologies and require further experimental confirmation.
Chirality induces giant charge rectification in a superconductor
Researchers discovered that chirality induces giant charge rectification in an organic superconductor, exceeding theoretical predictions. The nonreciprocal transport was found to be driven by enhanced spin-orbit coupling and mixing of spin-triplet Cooper pairs.
Smart engineered oxide material allows autonomous spin orientation control
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.
Scientists uncover spin–catalytic activity correlation in single-atom and -electron tailored gold nanoclusters
Researchers develop novel synthesis method for multi-shelled gold clusters and precisely remove atoms to study magnetic spin influence on catalytic behavior. They find that spin density concentrates more on iodine atoms than sulfur atoms, indicating potential role in tuning catalytic properties.
Scientists discover new way to keep quantum spins coherent for longer
Researchers at Hebrew University and Cornell University developed a way to suppress spin decoherence in alkali-metal gases, reducing spin relaxation rates by an order of magnitude. This breakthrough enables more stable and precise quantum devices, such as atomic clocks and magnetometry.
Scientists unveil a new way to electrically control spin for ultra-compact devices using altermagnetic quantum materials
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.
Advancing antiferromagnetic spintronics for next-gen memory and computing
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.
Scientists unravel the spiraling secrets of magnetic materials for next-generation electronics
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.
A spintronic view of the effect of chiral molecules
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.
‘Brand new physics’ for next generation spintronics
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.
Revealing the “true colors” of a single-atom layer of metal alloys
Researchers demonstrate that light can interact with a single-atom layer of thallium-lead alloys, restricting spin-polarized current flow to one direction. This phenomenon enables functionality beyond ordinary diodes and paves the way for ultra-fine two-dimensional spintronic devices.
Time-resolved polarimetric electron microscopy reveals spin meron pair
Researchers used time-delayed laser pulses to capture electric and magnetic field vectors of surface plasmon polaritons, revealing a meron pair's spin texture. The study demonstrates stable spin structures despite fast field rotations.
Physics: Current generated by the quantum Hall effect has additional magnetic properties
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.
New discovery by Mizzou scientists redefines magnetism
Researchers Carsten Ullrich and Deepak Singh have discovered a new type of quasiparticle in all magnetic materials, challenging previous understanding of magnetism. This finding could lead to the development of faster, smarter, and more energy-efficient electronics.
Researchers uncover strong light-matter interactions in quantum spin liquids
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.
Major development successes in diamond spin photon quantum computers
The SPINNING project successfully demonstrated the entanglement of two registers of six qubits each over 20m distance with high fidelity. The spin-photon-based quantum computer achieved lower error rates than superconducting Josephson junctions, outperforming prominent models like Eagle and Heron.
Breakthrough toward solving electronics overheating problem
Researchers developed a novel approach to regulate temperature based on gold structure concentration, improving spin wave transfer efficiency. This innovation has promising potential for future applications using spin waves and addresses the persistent issue of heat generation in electronic devices.
Measuring defects to better understand quantum systems
Researchers at the University of Chicago have developed a new way to measure the behavior of single electron defects in diamond, which can destroy quantum state memory. By studying the defects' spin and charge dynamics, scientists hope to create even better quantum sensors with long coherence times.
Molecule ‘handedness’ determines the strength of a coupling between nuclear spins
Researchers have discovered that the strength of a coupling between nuclear spins depends on the chirality or handedness of a molecule. The study found that in molecules with the same handedness, the nuclear spin aligns in one direction, while in molecules with opposite handedness, it aligns in the opposite direction.
Unprecedented spin properties revealed in new artificial materials
Researchers have designed a new complex material with emerging spintronics properties, enabling the generation of spin currents in desired directions. This discovery paves the way for more efficient and advanced electronic devices.
Researchers advance new class of quantum critical metal that could advance electronic devices
Researchers have unveiled a new class of quantum critical metal that sheds light on intricate electron interactions. The discovery could lead to the development of electronic devices with extreme sensitivity, driven by unique properties of quantum-critical systems.
Hidden Harmonies
Researchers discovered a novel energy transfer channel between magnons and phonons in an antiferromagnet under Fermi resonance, enabling future control of such systems for faster data storage. This breakthrough could lead to increased operational frequencies and enhanced efficiency of magnetic writing.
‘Miracle’ filter turns store-bought LEDs into spintronic devices
Researchers have successfully transformed existing optoelectronic devices, including LEDs, into spintronics devices by injecting spin-aligned electrons without ferromagnets or magnetic fields. The breakthrough uses a chiral spin filter made from hybrid organic-inorganic halide perovskite material, overcoming a major barrier to commerci...
Visual explanations of machine learning models to estimate charge states in quantum dots
Researchers developed a machine learning estimator to classify charge states in quantum dots, enabling automatic tuning of qubits. The estimator achieved high accuracy with visualizations revealing decision-making patterns, paving the way for scaling up quantum computers.
Materials research revolutionized by a small change
Researchers at Pohang University of Science & Technology (POSTECH) made a small change to develop highly efficient SOT materials. By creating an imbalance in the spin-Hall effect, they controlled magnetization switching without magnetic fields, achieving 2-130 times higher efficiency and lower power consumption than known single-layer ...
USTC proposes new constraints on exotic spin-spin-velocity-dependent interactions between electron spins
Researchers at USTC have detected two new exotic spin-spin-velocity-dependent interactions using solid-state spin quantum sensors. These findings provide valuable insights into fundamental interactions and could help explain observational facts in cosmology such as dark matter and dark energy.
New approach to identifying altermagnetic materials
Researchers developed a new method to identify altermagnets using X-ray magnetic circular dichroism (XMCD) and theoretically predicted its fingerprint. The approach was successfully applied to manganese telluride (α-MnTe), revealing the material's hidden fingerprint of altermagnetism, which could accelerate spintronics applications.
Making ferromagnets ready for ultra-fast communication and computation technology
A breakthrough in ferromagnet research enables ultra-fast spin behavior, leading to potential advancements in communication and computation technologies. The study's findings have the potential to unlock terahertz processing power, a thousand times faster than current smartphones and computers.
Landmark study is step towards energy-efficient quantum computing in magnets
Researchers at Lancaster University and Radboud University Nijmegen have discovered a novel pathway to modulate and amplify spin waves at the nanoscale, paving the way for dissipation-free quantum information technologies. The study's findings could lead to the development of fast and energy-efficient computing devices.
Solving physics puzzles with colored dots
Researchers at ETH Zurich and Harvard/Princeton used quantum pointillism to study complex quantum systems made of interacting particles. They observed the formation of spin polarons, which are crucial for understanding magnetic behavior in materials.
Quantum breakthrough: World’s purest silicon brings scientists one step closer to scaling up quantum computers
Researchers at the University of Manchester have developed an ultra-pure form of silicon that can be used to construct high-performance qubit devices, a crucial component for scalable quantum computers. The breakthrough could enable the creation of one million qubits, which may be fabricated into pinhead-sized devices.
Experiment opens door for millions of qubits on one chip
Researchers at the University of Basel and NCCR SPIN have successfully coupled two hole-spin qubits, enabling fast and precise controlled spin-flip operations. This achievement is a significant milestone in the quest for practical quantum computing, with millions of qubits on a single chip.
When injecting pure spin into chiral materials, direction matters
Researchers from North Carolina State University and the University of Pittsburgh studied how pure spin currents move through chiral materials. They found that the direction of spin injection affects its absorption in chiral materials, which could enable the design of energy-efficient spintronic devices for data storage, communication,...
Unlocking spin current secrets: a new milestone in spintronics
Researchers at Tohoku University have made a breakthrough in understanding spin currents in insulating magnets. They found that the spin current signal changes direction and decreases at low temperatures, shedding light on its propagation direction.
A magnetic “butterfly” with entangled spins for quantum technologies
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.
From Earth to Mars: Transporting spin information at the speed of light
Researchers have successfully transferred electron spin to photons, enabling rapid communication over long distances. This breakthrough could revolutionize optical telecommunications and pave the way for ultrafast communication between Earth and Mars.
Printed polymer allows researchers to explore chirality and spin interactions at room temperature
Researchers have developed a printable organic polymer that enables them to measure charge-to-spin conversion in spintronic materials at room temperature, revealing new insights into the mechanics of spintronics. The findings suggest longer spin lifetimes and tunability, paving the way for more efficient and energy-friendly devices.
Exploring the surface properties of NiO with low-energy electron diffraction
Researchers use LEED to investigate coherent exchange scattering in NiO, revealing a resonance enhancement attributed to surface wave resonance. The study reaffirms previous data on surface-spin structure and magnetic properties while providing new insights into temperature dependence.
EU funding for outstanding early-career researcher Pieter Gunnink
Dr. Pieter Gunnink receives a €190,000 grant to develop a theoretical framework for enhancing spin current transport in open magnon systems. This project aims to enable new information processing techniques using spintronics. The EU's Marie Skłodowska-Curie Actions program supports researchers at all career stages.
Quantum materials: Discovered new state of matter with chiral properties
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.
Dortmund physicists develop highly robust time crystal
Researchers at TU Dortmund University have developed a highly durable time crystal that outlasts previous experiments by tens of thousands of times. The team discovered a way to stabilize the crystal using nuclear spins, enabling it to maintain its periodic behavior for up to 40 minutes.
Researchers discover new ways to excite spin waves with extreme infrared light
Researchers have developed a new way to manipulate spin waves using tailored light pulses, enabling faster information processing technologies. This breakthrough could lead to next-generation computing systems, leveraging the potential of antiferromagnets and magnonics.
Scientists use heat to create transformations between skyrmions and antiskyrmions
Researchers from RIKEN have successfully created transformations between skyrmions and antiskyrmions using heat gradients at room temperature. This breakthrough could lead to the development of next-generation memory devices with low energy consumption, utilizing waste heat.
Generating stable qubits at room temperature
Scientists achieve room-temperature quantum coherence by embedding a chromophore in a metal-organic framework, enabling the creation of quintet state qubits with four electron spins. This breakthrough could lead to the development of multiple qubit systems at room temperature, revolutionizing quantum computing and sensing.
Using berry phase monopole engineering for high-temperature spintronic devices
Scientists have engineered a non-magnetic material called tantalum silicide to achieve efficient spin Hall effect at high temperatures through Berry phase monopole engineering. This breakthrough could lead to the development of ultrafast, low-power and high-temperature spintronic devices.
Unconventional magnets: stress reduces frustration
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.
Riddle of Kondo effect solved in ultimately thin wires
Physicists have directly observed the Kondo effect in a single artificial atom using a scanning tunnelling microscope. The team confirmed a decades-old prediction by validating their experimental data against theoretical models. This breakthrough paves the way for investigating exotic phenomena in magnetic wires.