Articles tagged with Electron Spin
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.
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 at Ohio State University have detected a previously unknown physics phenomenon, the orbital Hall effect, which could revolutionize data storage in future computer devices. The study's findings suggest that utilizing orbital currents instead of spin currents could lead to lower energy consumption and higher speeds.
A WVU researcher is developing new methods to fast-track the discovery of quantum materials, which could lead to breakthroughs in fields like quantum computing and superconductors. The goal is to streamline the discovery process using computational and experimental tools.
A new study uses computer simulations to predict the formation process of spin defects in silicon carbide, an attractive host material for spin qubits. The team's findings represent an important step towards identifying fabrication parameters for spin defects useful for quantum technologies.
The University of Science and Technology of China has made a significant breakthrough in exploring exotic spin interactions using solid-state spin quantum sensors. Their research findings provide valuable insights into these interactions, allowing for precise measurements of various spin phenomena.
Researchers at Brown University have made significant breakthroughs in understanding quantum spin liquids by studying the effects of disorder on these exotic materials. The study reveals that disorder does not destroy or mimic the quantum liquid state but rather significantly alters it.
By increasing skyrmion diffusion, researchers have made a significant step towards developing spin-based, unconventional computing. The use of synthetic antiferromagnets has reduced energy consumption and increased speed, making it possible to create more efficient computers.
Scientists develop a coherent and controllable spin-optical laser based on monolayer-integrated spin-valley microcavities, enabling the study of spin-dependent phenomena in classical and quantum regimes. The discovery paves the way for new optoelectronic devices and opens up new avenues for fundamental research.
A team of researchers has found a way to control the interaction of light and quantum spin in organic semiconductors, even at room temperature. This breakthrough enables the creation of quantum objects with controlled spin states, which could lead to significant advancements in fields like quantum computing and sensing.
Theoretical physicists at Los Alamos National Laboratory have developed a new quantum computing paradigm that uses natural quantum interactions to process real-world problems faster than classical computers. The approach eliminates many challenging requirements for quantum hardware.
Researchers have created a new type of conducting polymer with a helically grown structure, which can emit circularly polarized light. The polymer's radicals are arranged in a helical shape and can be aligned into stripe-like structures when exposed to a magnetic field.
Researchers have found an unusual ultrafast motion in layered magnetic materials, which could lead to breakthroughs in high-speed nanomotors for biomedical applications. The discovery was made using cutting-edge ultrafast probes and facilities, revealing a mechanical response across the entire sample.
A team of researchers has found a way to control the spin density in diamond by applying an external laser or microwave beam. This technique could enable the development of more sensitive quantum sensors and improve the sensitivity of existing nanoscale quantum-sensing devices.
A new study by Prof. Yossi Paltiel and colleagues reveals that nuclear spin significantly affects oxygen dynamics in chiral environments, particularly in transport. This finding challenges long-held assumptions and opens up possibilities for advancements in biotechnology and quantum biology.
A team led by Takuro Sato found that the chiral-induced spin selectivity (CISS) effect can filter out electrons and molecules with specific chirality, enabling enantioselectivity without chiral catalysis. This discovery has broader applications in producing safer chemicals and developing advanced electronics across various scales.
Researchers discovered a close relationship between nuclear and electron dynamics, challenging the Born-Oppenheimer approximation. This breakthrough could lead to new ways to control and exploit molecular properties for solar energy conversion, quantum information science, and more.
Scientists have successfully visualized the topology of electrons in topological quantum materials using '3D glasses,' a technique that uses circularly polarized X-ray light. This breakthrough enables the characterization of quantum materials topologically, paving the way for energy-saving electronics and high-tech advancements.
Researchers from Spain, France, and Germany generate a single domain wall on a half metal nanowire and measure significant resistance changes. The study reveals large magnetoresistance effects in La2/3Sr1/3MnO3 nanowires, holding promise for spintronic applications.
Researchers have developed a new method for designing metasurfaces using photonic Dirac waveguides, enabling the creation of binary spin-like structures of light. This advances the field of meta-optics and opens opportunities for integrated quantum photonics and data storage systems.
A team of scientists has found a way to directly manipulate the spin of electrons in 2D materials like graphene, a long-standing challenge. They used a novel experimental technique to study the properties of how electrons spin in these materials.
Engineers at the University of New South Wales have created a solution for overcrowded circuitry in quantum computer chips by developing jellybean quantum dots in silicon. The device allows for spaced-out qubits that can interact with each other, enabling more efficient quantum computing.
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.
Researchers at Max Born Institute have developed a hybrid laser pulse that controls ultrafast light-induced currents in giant materials. This breakthrough enables the creation of valley-currents and spin-currents, vital for future valleytronics technology.
A team of researchers at the Max Born Institute developed a novel method for X-ray Magnetic Circular Dichroism (XMCD) spectroscopy using a laser-driven plasma source. This breakthrough enables precise determination of magnetic moments in buried layers without damaging samples, and can monitor ultrafast magnetization processes.
Researchers at Argonne National Laboratory have discovered ultrasmall swirling magnetic vortices, known as merons and skyrmions, in an iron-containing material. These tiny magnetic structures show promise for future computer memory storage and high-efficiency microelectronics due to their stability and adaptability to binary code.
Scientists at Tokyo University of Science generate vector vortex light beams and imprint their structure on electron spins in a semiconductor solid, creating helical spatial structures. This breakthrough enables higher information storage capacity by exploiting effective magnetic fields alongside structured light beams.
Researchers stack ultrathin monolayers of semiconductors to create a moiré lattice that traps individual electrons in tiny slots. This configuration allows for continuous tuning of electron mass and density, leading to the observation of heavy electrons and potential emergence of a 'strange' metal phase.
A new device developed by quantum engineers can measure the spins in materials with high precision, breaking the current record of thousands of spins. This breakthrough enables researchers to study systems that were previously inaccessible, such as microscopic samples and two-dimensional materials.
HRL Laboratories has demonstrated universal control of encoded spin qubits using a novel silicon-based qubit device architecture. The achievement offers a strong pathway toward scalable fault tolerance and computational advantage in quantum computing, with potential applications in materials development, drug discovery, and mitigating ...
Researchers at the University of Rochester have developed a novel method to boost the light conversion efficiency of perovskites by 250 percent using substrates of metal and dielectrics. This breakthrough could lead to more efficient solar cells and detectors.
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.
Researchers have demonstrated a new type of quantum bit, called 'flip-flop' qubit, which combines the properties of single atoms with easy controllability using electric signals. The qubit is made up of two spins belonging to the same atom and can be programmed by displacing an electron with respect to the nucleus.
Researchers developed a method to efficiently couple terahertz waves with spin waves, clarifying fundamental mechanisms previously thought impossible. This breakthrough enables the development of novel spin-based technologies for data processing.
Scientists have discovered a quadratic relationship between the coefficient of T-linear resistivity and transition temperature in FeSe, indicating that spin fluctuations may play a common role in unconventional superconductors. This finding provides insight into high-temperature superconductivity.
Researchers employed magnets to separate left and right handed chiral molecules, verifying a novel mechanism that could enhance efficiency and widen magnet-based chirality control. The study discovered spin polarizations corresponding to different handedness in organic chiral superconductors.
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.
Charged porphyrins enable researchers to study π-electronic ion pairs and their interactions, leading to the creation of electronic materials with unique properties. The study reveals fascinating new properties of stacked ion pairs and their potential applications in fields like nanomagnetism and ferroelectrics.
Researchers at KAUST have developed a spintronics-based logic lock to defend chip security, which can be integrated into electronic chips to fend off malicious attacks. The design uses magnetic tunnel junctions to scramble the circuit's operation unless the correct key combination signal is supplied.
Researchers at Tokyo Institute of Technology have developed a novel nanowire fabrication technique, allowing for the direct creation of ultrafine L10-ordered CoPt nanowires with high coercivity on silicon substrates. The technique enables significant improvements in spintronic device fabrication.
A team of researchers from Johannes Gutenberg University Mainz have successfully developed a new approach to improve the way data is processed and stored. By combining chirality in spin configurations and molecules, they aim to create faster, smaller, and more efficient data storage devices.
Physicists have observed novel quantum effects in a topological insulator at room temperature, opening up new possibilities for efficient quantum technologies. This breakthrough uses bismuth-based topological materials to bypass the need for ultra-low temperatures.
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.
Physicists at the University of Groningen have observed a significant increase in magnon conductivity in ultrathin YIG films, surpassing expectations by three orders of magnitude. This unexpected result could lead to new devices and discoveries in spintronics.
A team of researchers from Münster and Pittsburgh has discovered that chiral oxide catalysts can align electron spin, improving the efficiency of chemical reactions. The findings have potential applications in spin-based electronics and fuel cells.
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 have found that the arrangement of spinning electrons, not a weak external magnetic field, causes the Hall effect in Weyl antiferromagnets. This discovery has implications for next-generation memory storage devices using ferromagnets and antiferromagnets.
Researchers at Rensselaer Polytechnic Institute have successfully controlled electron spin at room temperature, a crucial step towards developing more efficient and faster devices. The discovery uses a unique ferroelectric van der Waals layered perovskite crystal to harness the Rashba or Dresselhaus spin-orbit coupling effect.
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.
Electronic nematicity, a key feature of iron-based superconductors, is primarily driven by spin excitations in FeSe. The study uses RIXS to reveal the spin anisotropies underlying this phenomenon, shedding light on its origin and potential impact on high-temperature superconductivity.
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 study reveals that superconductors can transmit spin currents between magnets, allowing for controlled magnetic interactions and modifying the magnetic response. This breakthrough enables new approaches to information processing using magnetic materials at low temperatures.
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.
The study investigates the role of physical principles in quantum Darwinism, finding that it relies on non-classical features, specifically entanglement, to emerge via natural selection. The researchers employed generalized probabilistic theories to analyze and compare different physical theories.
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.
Researchers at Osaka University and National Research Council Canada create a gallium arsenide quantum dot that can trap individual electrons. The development could help advance the field of quantum networks by efficiently converting photons into electron spins.
Researchers have discovered an elegant equation to approximate the coherence time of materials hosting spin qubits. The team can now estimate coherence times in seconds using just five material properties, facilitating a rapid exploration of new candidate materials.
Researchers at Princeton University have achieved an unprecedented level of fidelity in two-qubit silicon devices, paving the way for the use of silicon technology in quantum computing. The study's findings suggest that silicon spin qubits have advantages over other qubit types, including scalability and size limitations.
Engineers from Intel and scientists from QuTech have successfully produced the first industrially manufactured qubit, leveraging industrial manufacturing facilities to overcome scalability hurdles. The achievement boasts high uniformity, few defects, and unprecedented device yield, paving the way for practical quantum computation.
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.