Articles tagged with Topological Insulators
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Researchers have developed a topological insulator that exhibits the Quantum Spin Hall Effect even at significantly higher temperatures than previous materials. This breakthrough paves the way for the creation of energy-efficient and powerful devices, with potential applications in established semiconductor technology.
A new system developed by Penn researchers allows light to be guided through tiny crystals with minimal scattering or reflection. This breakthrough paves the way for more efficient and controllable photonic chips, enabling faster data transmission and reduced errors.
Researchers at the University of Michigan discovered a class of materials with exciting properties for transporting photonic information, including unidirectional transport and defect-free light. The topological insulators' band gap size can be up to 100 times larger than current records, enabling new applications in optical devices.
Kobe University researchers uncover a new phenomenon in bismuth that masks its surface conductivity, relevant to topological materials suitable for quantum computing and spintronics. The study breaks the principle of bulk-edge correspondence, suggesting 'topological blocking' in other systems.
Researchers unveiled a new class of topological insulator with an octupole phase protected by a three-dimensional momentum-space nonsymmorphic symmetry group. The discovery broadens the understanding of higher-order topological phases and provides new insights into band theory in the Brillouin real projective space.
Physicists at the University of Cologne have successfully observed Crossed Andreev Reflection in TI nanowires, a crucial step toward engineering Majorana-based qubits. This breakthrough enables reliable control over superconducting correlations in topological insulator nanowires.
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.
Topological insulators, a new type of quantum material, are explained using dance. The researchers created a grid with blue and red tape on the floor, and then choreographed a dance based on Hamiltonian rules in quantum mechanics.
A recent study has lifted the veil of topological censorship by revealing a meandering conduction channel that can carry quantized bulk current. The researchers identified mechanisms that allow for tuning between qualitatively different microscopic implementations, challenging traditional theories.
Researchers at UCF are developing materials that allow electricity to move through devices without creating heat, potentially transforming how technology is built and powered. If successful, this could lead to a long-term solution for humankind and the way we consume our natural resources.
A team of researchers from NTT Corporation and Tokyo Institute of Technology has successfully achieved photonic topological phase transition by material phase transition. This breakthrough demonstrates the possibility to change the photonic topological phase in a reconfigurable manner, paving the way for novel research fields and promi...
Researchers from NUS successfully simulated higher-order topological lattices with unprecedented accuracy, unlocking new potential in quantum computers. The study enables the exploration of high-dimensional topological materials and their unique properties.
Researchers predict the existence of a new type of exciton with finite vorticity, called a 'topological exciton,' in Chern insulators. This prediction has the potential to enable the development of novel optoelectronic devices for quantum computing.
A team of experimental physicists has achieved a breakthrough in topological quantum computing by inducing superconducting effects in edge-only materials. This discovery could lead to the development of stable and efficient quantum computers, with potential applications in fields like quantum computing and technological advancements.
Theoretical physicists at Utrecht University have discovered that fractals might hold the key to making electric currents flow without energy loss. By growing fractal structures on top of semiconductors, scientists have created materials with zero-dimensional corner modes and lossless one-dimensional edge states.
Researchers at Tohoku University have unveiled a groundbreaking discovery of a one-dimensional topological insulator (TI), a unique state of matter that differs from conventional metals, insulators, and semiconductors. This breakthrough has significant implications for the development of qubits and highly efficient solar cells.
Researchers created a topological quantum simulator device that operates at room temperature, allowing for the study of fundamental nature of matter and light. The device has the potential to support the development of more efficient lasers.
Researchers developed a new measurement method that significantly improves the accuracy of electrical resistance measurements, leveraging the Quantum Anomalous Hall Effect. The method allows for precise measurements at high currents and without an external magnetic field, making it suitable for advanced applications.
Researchers at Princeton University have discovered a novel quantum effect termed “hybrid topology” in a crystalline material made of arsenic atoms. This finding combines two forms of topological quantum behavior—edge states and surface states, creating a new state of matter.
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.
A team of scientists has discovered dual topological phases in an intrinsic monolayer crystal, revealing new rule-bending properties in a quantum material. The discovery introduces a novel effect, known as the dual topological insulator or quantum spin Hall insulator, which exhibits zero electrical conductivity within its interior.
Researchers have experimentally verified the parity anomaly in a topological insulator, which leads to spectral asymmetry and an unusual change in electrical resistance. This finding is generic for any topological insulator and opens up new avenues for exploring topological insulator physics.
Scientists have developed a new method to manipulate light using synthetic dimension dynamics, enabling precise control over light propagation and confinement. This breakthrough has significant implications for applications such as mode lasing, quantum optics, and data transmission.
Researchers at Penn State have created a new fusion of materials that exhibits chiral topological superconductivity, a property required for topological quantum computation. The combination of magnetic materials and iron chalcogenide could enable the development of robust quantum computers with unique properties.
Researchers identify surface signature that is unique to higher-order topological insulators, allowing for experimental confirmation of their existence. By analyzing spin-dependent surface behaviors, they found a transparent layer separating the material's interior from its surface.
A team of researchers reviewed the superconducting diode effect, which enables dissipationless supercurrent flow in one direction. The study highlights potential applications for quantum technologies in both classical and quantum computing.
Researchers developed a new catalyst using bismuth selenide, a topological insulator, to synthesize organoureas at room temperature with almost 100% yield. The catalyst's unique properties allow for stable surface states and recyclability.
Researchers have experimentally observed nonlinear photonic disclination states in waveguide arrays, which can enhance nonlinear effects and enable stable lasing. These findings may lead to new ideas for developing compact optical functional devices.
Researchers discovered that electrons flow through the bulk of a special type of insulator, rather than at the edges, using magnetic imaging. This finding provides new insights into electron behavior in quantum Hall insulators and informs the development of topological materials for next-generation quantum devices.
The study investigated high harmonic spectroscopy as a method to observe topology in materials. Despite thorough analysis, the researchers found that non-topological aspects of the system dominated its response, suggesting that topology may play a minor role.
Researchers at the University of Minnesota have created a thin film of a unique semimetal material that can generate more computing power and memory storage while using significantly less energy. The study, published in Nature Communications, has important findings about the physics behind its unique properties.
A team of researchers has made a groundbreaking discovery about the magnetic interactions in TbMn6Sn6, a Kagome layered topological magnet. At intermediate temperatures, both uniaxial and isotropic terbium ions exist, with the population of spherical terbium increasing as temperature rises.
The prize recognizes the duo's discovery that topology can classify compounds, similar to the Periodic Table. They have predicted and designed thousands of new topological compounds and experimented with many of these.
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.
Researchers have discovered anomalous quantum oscillations in twisted double bilayer graphene, which exhibit periodic behavior with the inverse of magnetic field. The oscillations are tunable by electric field and qualitatively reproduce calculations based on a phenomenological model.
Researchers found that introducing magnetic defects into topological insulators leads to competing ferromagnetic and antiferromagnetic interactions, which control the material's magnetic order. This discovery could have significant implications for reducing energy footprints in computing and electricity transmission.
Physicists from Würzburg's ToCoTronics CRC have made groundbreaking discoveries in topological materials, including indene and bismuthene. The renewed funding will focus on shaping these materials into nanostructures using lithographic methods.
Researchers at Max Planck Institute discover that exciting electrons with strong light leads to exotic quantum effects, enabling new functions on demand. The team made an unforeseen discovery: Floquet bands form after a single optical cycle, paving the way for ultrafast electronics and tailored quantum functions.
Researchers at DTU found that conventional materials like silicon cannot prevent backscattering in photonic systems, despite attempts to create topological waveguides. The study suggests that new materials breaking time-reversal symmetry are needed to achieve protection against backscattering.
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 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.
Scientists at RMIT University and partner organisation confirm electric control of superconductivity and giant anomalous Hall effect in the kagome metal CsV₃Sb₅. Proton intercalation modulates carrier density, allowing for tuning of Fermi surfaces and potentially realizing exotic quantum phase transitions.
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 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.
Researchers at Penn State have created a two-dimensional heterostructure by combining a topological insulator with a monolayer superconductor, demonstrating topological superconductivity and Ising-type superconductivity. The hybrid structure could pave the way for more stable quantum computers and explore Majorana fermions.
Researchers have controlled a one-dimensional electron fluid to an unprecedented degree, discovering new properties of Tomonaga-Luttinger liquids in two-dimensional materials. The team's findings could pave the way for more robust quantum computers with enhanced fault-tolerance.
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 have successfully switched on and off topological states in a material, exploiting the interaction of electrons to manipulate their behavior. The discovery opens up new possibilities for technical applications, including quantum computers and sensor technology.
Researchers from Osaka University have developed a new method to control topological electronic states in smarium hexaboride, detouring its topological protection. This breakthrough could lead to new technologies for higher speed and low power consumption electronics.
Researchers at the University of Tsukuba have created light-induced topological states in zinc arsenide, exhibiting unusual behavior where electrical currents flow along the surface. This work explores the possibility of creating topological semimetals and manifesting new physical properties by light control.
Researchers at Forschungszentrum Jülich have discovered how the topological properties of multilayer WTe2 systems can be changed by studying them under a scanning tunneling microscope. The study found that twisting the layers creates a moiré lattice that modulates electrical conductivity.
Topological insulators exhibit unique quantum properties, with electrons flowing freely along surface edges but not through the interior. Researchers used spiraling laser light to generate harmonics from materials, allowing them to distinguish between superhighway and insulating states. By varying laser polarization and material compos...
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.
A new broadband near-field chiral source enables comparison of different edge states to advance applications in integrated photonics and wireless devices. The research advances the field of chiral photonics science, promoting applications of chiral-sorting technology for microwave metadevices.
Researchers developed topological membrane metadevices for on-chip terahertz wave manipulations, showcasing robust single-mode manipulation and valley-locked edge states. This breakthrough enables the development of a robust platform for terahertz on-chip communication, sensing, and multiplexing systems.
Researchers investigate the search for Majorana fermions in iron-based superconductors, which could enable topological quantum computing and ultra-low energy electronics. The existence of Majorana zero-energy modes in topological superconductors makes them a promising candidate material for realizing these technologies.
The University of Central Florida researchers created bimorphic topological insulators that enable secure transport of light packets with minimal losses. These materials could lead to faster and more energy-efficient photonic computers and one day, quantum computing.
Researchers have demonstrated that ultra-thin topological insulator nanowires can act as a quantum one-way street for electrons, offering a significant step towards achieving topological qubits. This breakthrough enables highly stable qubits, the building blocks of future quantum computers.
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.
The study reveals the sing saw uses a surprising effect to create its distinct tone: when curved into an S-shape, energy vibrates in a confined area producing a clear, long-lasting sound. This principle can be applied to design high-quality resonators for various applications.