Articles tagged with Condensed Matter Physics
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.
Researchers have revived the Lieb-Schultz-Mattis theorem in open quantum systems, extending its constraints to entanglement Hamiltonian and shedding light on behavior of entanglement in presence of environment. The theorem requires weak symmetry and short-range correlation, with numerical simulations verifying its validity.
The American Physical Society's joint March Meeting and April Meeting will convene more than 14,000 physicists from around the world to present new research in various fields. The conference will be held in person in Anaheim, California and online everywhere March 16-21.
Researchers have uncovered key insights about how liquid crystals transform between different phases using direct simulation and machine learning. This study provides a clearer understanding of the microscopic-level changes in these materials, which could lead to new possibilities for advanced materials development.
The German Research Foundation has approved a four-and-a-half-year extension for the Research Training Group 2516, which explores structure formation in soft matter. The group aims to understand assembly processes and manipulate them through interfaces.
Researchers at Martin Luther University Halle-Wittenberg have developed a new method to visualize magnetic nanostructures with a resolution of around 70 nanometres. This breakthrough enables the analysis of spintronic components and has significant implications for energy-efficient storage technologies.
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.
A team of researchers at Johannes Gutenberg University Mainz has developed a new method to study the interior of crystalline drops using monochromatic illumination. This approach exploits the color-dependent scattering of light and reveals the density profile of the drop, including initial rapid expansion due to particle repulsion befo...
Researchers have discovered chiral topological semi-metals that possess properties making them suitable for generating currents of orbital angular momentum (OAM) flows. This breakthrough paves the way for the development of energy-efficient devices in orbitronics, a potential alternative to traditional electronics.
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 apply computational technique to understand the 'pseudogap', a long-standing puzzle in quantum physics with ties to superconductivity. The discovery helps scientists in their quest for room-temperature superconductivity, enabling lossless power transmission and faster MRI machines.
A team of researchers discovered that twisting layers of a material can generate an electron-path-deflecting effect, controlling light and electrons in quantum materials. The phenomenon mimics the Coriolis force, where light is used to manipulate electrons, exhibiting new quantum behaviors.
Researchers at Johannes Gutenberg University Mainz enhance Brownian reservoir computing to detect simple hand gestures, outperforming software-based approaches in terms of accuracy and energy consumption. The system uses skyrmions to recognize complex motions with low currents.
Researchers from the University of Cambridge have created a 2D version of the Bose glass, a novel phase of matter that challenges traditional statistical mechanics. The new phase exhibits non-ergodic behavior, meaning it retains its details, and has potential applications in quantum computing.
LMU researchers investigated how cell nuclei change shape to migrate through tight spaces, revealing reversible nuclear deformation and adaptation of pulling and pushing forces. The study suggests a biphasic dependence of migration speed on channel width, with maximal transition rates at widths comparable to the nuclear diameter.
A new study published in Physical Review Letters suggests that nanohertz gravitational waves may not originate from supercool first-order phase transitions. Researchers found that such transitions would struggle to complete, shifting the frequency of the waves away from nanohertz frequencies.
Scientists from Japan have discovered a new type of ice, known as ice 0, which can cause water droplets to freeze near their surface rather than at their core. This discovery resolves a debate about the formation of ice and has significant implications for climate studies and food sciences.
Researchers have discovered that photo-excited YBa2Cu3O6.48 expels a static magnetic field from its interior, comparable to equilibrium superconductivity. This finding suggests that tailored light pulses can be used to synchronize fluctuating states and restore superconducting order at higher temperatures.
A team of researchers has discovered a long-range charge-density wave order in a high-temperature superconductor induced by tensile-compressive strain, challenging conventional beliefs about magnetism as the primary driver. The findings have immense promise for elucidating the underlying mechanisms of high-temperature superconductivity.
Physicists at UCSB and collaborators have created a framework to manipulate self-sustained chaotic flows in active fluids by controlling topological defects. This allows for the engineering of self-powered fluids with tunable flows, paving the way for applications in biological processes, soft robotics, and fluid-based logic devices.
Scientists at the University of Rochester have developed a technique for pairing particles of light and sound, allowing for faithful conversion of information stored in quantum systems. The method uses surface acoustic waves, which can be accessed and controlled without mechanical contact, enabling strong quantum coupling on any material.
A new atomically-thin material has been discovered that can switch between an insulating and conducting state by controlling the number of electrons. This property makes it a promising candidate for use in electronic devices such as transistors.
Scientists have found evidence of a Bragg glass phase in a crystal using machine learning and X-ray technology. The study provides insight into the nature of glasses and their unique properties, which could inform material design.
Scientists from the University of Amsterdam and Chile have created a new type of granular material that can be compressed and still flow like a liquid. This breakthrough has significant potential for applications such as shock dampening, where the material can absorb and distribute energy more consistently.
Scientists create high-throughput automation to calculate surface properties of crystalline materials using established laws of physics. This accelerates the search for relevant materials for applications in energy conversion, production, and storage.
Researchers have developed a lead-selenide-based material that improves thermoelectric efficiency without using scarce tellurium. The new material's performance surpasses existing tellurium-based thermoelectric materials in both cooling and electrical conductivity.
Researchers at Argonne National Laboratory have developed a new technique to precisely modulate electron flow in microelectronic devices, enabling lower power consumption and increased efficiency. The 'redox gating' method allows for the control of electron flow at low voltages, preventing damage to the system.
The TR-ARPES technique has rapidly matured into a powerful tool for exploring the equilibrium and dynamical properties of quantum materials. Researchers can now fine-tune electronic, transport, and magnetic properties of quantum materials on demand using light-matter interaction.
Researchers discovered charge fractionalisation in an iron-based metallic ferromagnet using laser ARPES spectroscopy, revealing collective excitations and quasiparticles. The study challenges fundamental quantum mechanics by showing electrons can behave as independent entities with fractionally charged pockets.
Scientists have successfully created and identified merons in synthetic antiferromagnets, which are rare collective topological structures. The achievement was made possible through extensive simulations and experiments by researchers at Johannes Gutenberg University Mainz.
Physicists at Princeton University have observed long-range quantum coherence effects due to Aharonov-Bohm interference in a bismuth bromide topological insulator-based device. This finding could lead to the development of spin-based electronics with higher energy efficiency and new platforms for quantum information science.
Researchers have proved the existence of altermagnetism, a new type of magnetism that offers distinct advantages for next-generation magnetic memory technology. Altermagnets exhibit strong spin-dependent phenomena like ferromagnets while possessing zero net magnetization.
Researchers visualize second sound, a wave-like movement of heat, independent of physical particle motion in a superfluid. The findings expand understanding of heat flow in superconductors and neutron stars.
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 team of researchers has identified the intrinsic interactions responsible for light-induced ferroelectricity in SrTiO3. By measuring fluctuations in atomic positions, they found that mid-infrared excitation suppresses certain lattice vibrations, leading to a more ordered dipolar structure.
Researchers developed a novel deep learning method to study crystal structure and molecular interactions of perchlorate salts. The analysis revealed that the explosives' nature is linked to chemical bonding and intermolecular interactions.
A Swiss-Polish team has found the answer to why previous attempts to use magnesium hydride for efficient hydrogen storage failed. The researchers developed a new model that predicts local, thermodynamically stable clusters are formed in magnesium during hydrogen injection, reducing hydrogen ion mobility.
Researchers at Paul Scherrer Institute created solid-state qubits from rare-earth ions in a crystal, showing that long coherences can exist in cluttered environments. The approach uses strongly interacting pairs of ions to form qubits, which are shielded from the environment and protected from decoherence.
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.
Scientists have made significant progress in understanding ultrafast electron dynamics by tracking the motion of electrons released from zinc oxide crystals using laser pulses. The research team combined photoemission electron microscopy and attosecond physics technology to achieve temporal accuracy, enabling them to study the interact...
Researchers use quantum chemical calculations to understand sodium's transformation into an insulator at high pressures. The study confirms theoretical predictions made by Neil Ashcroft and connects it with chemical concepts of bonding.
Researchers at the University of Michigan developed a new way to move quasiparticles, which could lead to more efficient devices and room temperature quantum computers. The team used a laser to create a cloud of quasiparticles that migrated up the pyramid's edge and settled at the peak.
Scientists have discovered how atoms and spins move together in electromagnons, a hybrid excitation that can be controlled with light. The study used time-resolved X-ray diffraction to reveal the atomic motions and spin movements, showing that atoms move first and then the spins fractionally later.
Researchers from China University of Petroleum apply terahertz spectroscopy to characterize oil shale's anisotropy, organic distribution, and fingerprint spectrum. The method enables simultaneous characterization of main oil generation zones and natural gas zones.
Research explains why X-ray diffraction images 'darken' at high intensities, offering new perspective for ultra-short laser pulse production. Different atoms respond differently to ultrafast X-ray pulses, potentially improving atomic structure reconstruction and generating even shorter pulses.
Researchers from Monash University have introduced a new theoretical study on quantum impurities, exploring their behavior in two-dimensional semiconductors. The 'quantum virial expansion' method sheds light on the complex interactions between impurities and their surroundings in 2D materials.
Scientists have developed perovskite photovoltaic cells with significantly improved optoelectronic properties using nanoimprinting method. The structure reduces optical losses and enables cheaper production on a large scale.
Lehigh University researchers have discovered that applying magnetic forces to individual 'microroller' particles can spur collective motion, allowing the grains to flow uphill, up walls, and climb stairs. This counterintuitive phenomenon has potential applications in mixing, segregating materials, and microrobotics.
The study delves into magnetic behaviors and ultrafast dynamics in atomically thin materials, aiming to leverage these 2D magnets in innovative applications. Mastering spin dynamics is key to unlocking groundbreaking technologies like spin tunnel field-effect transistors and spin-filtering devices.
GIST researchers found that nano-sized pits on AlN surfaces cause graphene degradation at higher temperatures, leading to GaN film exfoliation failure. The study's results demonstrate the importance of substrate chemical and topographic properties for successful remote epitaxy.
Scientists at Mainz University and TU Darmstadt developed a method to write in water by utilizing microbeads that exchange ions for protons, altering local pH values. This allows ink particles to accumulate in specific areas, creating fine lines and patterns.
A recent study presents an exciting new way to measure the crackling noise of atoms in crystals, enabling the investigation of novel materials for future electronics. The method allows researchers to study individual nanoscale features and identify their effects on material properties.
Researchers have identified a mechanism explaining the characteristic properties of strange metals, which operate outside normal rules of electricity. The theory combines two properties: electron entanglement and nonuniform atomic arrangement, resulting in electrical resistance.
Researchers at NTU Singapore have developed a method to read data stored in antiferromagnets, allowing for potential energy-efficient and high-speed computing. This breakthrough could lead to the creation of new memory chips with improved performance and capacity.
Researchers identified a new theoretical framework for oscillating superconductivity, which could revolutionize electricity transfer. The discovery provides insight into an unconventional, high-temperature superconductive state seen in certain materials.
Researchers have found that certain materials can exhibit D-wave effects, entangled with other quantum states, allowing for efficient coupling at higher temperatures. This breakthrough bridges condensed matter physics subfields and could enable practical applications of quantum computing.
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 Hebrew University of Jerusalem discovered supershear tensile cracks that surpass classical speed limits and transition to near-supersonic velocities. These findings challenge traditional understanding of fracture mechanics, offering new avenues for studying material properties.
Researchers at UB discovered a new approach to understand insulator-to-metal transitions, resolving discrepancies with the Landau-Zener formula. The study's 'quantum avalanche' theory explains how electrons can flow between bands in an insulator, providing clarity on the phenomenon.
Researchers developed a polarization-angle-resolved Raman microscope to visualize disorder effects on ferroelectric polarization. The study reveals slow response of nanometer-scale electric polarization, enabling significant charge storage and enhanced dielectric properties.