Scientists from the National University of Singapore (NUS) have pioneered a new methodology of fabricating carbon-based quantum materials at the atomic scale by integrating scanning probe microscopy techniques and deep neural networks. This breakthrough highlights the potential of implementing artificial intelligence at the sub-angstrom scale for enhanced control over atomic manufacturing, benefiting both fundamental research and future applications.
Tag: quantum materials
UC Irvine scientists make breakthrough in quantum materials research
Irvine, Calif., Jan. 31, 2024 — Researchers at the University of California, Irvine and Los Alamos National Laboratory, publishing in the latest issue of Nature Communications, describe the discovery of a new method that transforms everyday materials like glass into materials scientists can use to make quantum computers.
Plastic Deformation Engineering Dramatically Enhances Quantum Phenomena
Researchers have discovered that applying plastic deformation to the quantum material strontium titanate causes defects (known as dislocations) to organize themselves into repeating structures. These changes lead to improvements of strontium titanate’s superconducting and ferroelectric properties.
Research group detects a quantum entanglement wave for the first time using real-space measurements
A team from Aalto University and the University of Jyväskylä have created an artificial quantum magnet featuring a quasiparticle made of entangled electrons, the triplon.
New foundry to accelerate quantum information research at Argonne National Laboratory
The Argonne Quantum Foundry, a new scientific facility at Argonne, is meeting a critical need for quantum science by providing a robust supply chain of materials for quantum devices and systems.
“Y-Ball” Compound Yields Quantum Secrets
Scientists investigating a compound called “Y-ball” – which belongs to a mysterious class of “strange metals” viewed as centrally important to next-generation quantum materials – have found new ways to probe and understand its behavior.
SLAC, Stanford researchers make a new type of quantum material with a dramatic distortion pattern
The resulting distortions are ‘huge’ compared to those in other materials, and represent the first demonstration of the Jahn-Teller effect in a layered material with a flat, planar lattice, like a high-rise building with evenly spaced floors.
Scientists turn single molecule clockwise or counterclockwise on demand
Argonne scientists report they can precisely rotate a single molecule on demand. The key ingredient is a single atom of europium, a rare earth element. It rests at the center of a complex of other atoms and gives the molecule many practical applications.
Media Tip: The quest for an ideal quantum bit
Scientists have developed a qubit platform formed by freezing neon gas into a solid, spraying electrons from a light bulb’s filament onto it, and trapping a single electron there. This system shows great promise as an ideal building block for quantum computers.
Media Tip: Stretching qubit lifetimes with asymmetrical crystal environments
Adaptable and versatile, molecular qubits hold promise for numerous quantum applications. By altering the qubit’s host environment, a team supported by the Q-NEXT quantum center has extended the length of time these qubits can maintain information.
A possible game changer for next generation microelectronics
Researchers have discovered new properties of tiny magnetic whirlpools called skyrmions. Their pivotal discovery could lead to a new generation of microelectronics for memory storage with vastly improved energy efficiency.
Stability in asymmetry: Scientists extend qubit lifetimes
Adaptable and versatile, molecular qubits hold promise for numerous quantum applications. By altering the qubit’s host environment, a team supported by the Q-NEXT quantum center has extended the length of time these qubits can maintain information.
How the five National Quantum Information Science Research Centers harness the quantum revolution
The DOE National Quantum Information Science Research Centers are a collective force for quantum research in the United States, driving scientific innovation, building a quantum ecosystem and fostering the future quantum workforce.
Study finds nickelate superconductors are intrinsically magnetic
Scientists embedded elementary particles called muons into a nickel oxide superconductor to learn more about its magnetic properties. They discovered very different magnetic behavior than the best known unconventional superconductors, the cuprates, display.
Evasive quantum phenomenon makes debut in routine tabletop experiment
A Quantum Science Center-supported team has captured the first-ever appearance of a previously undetectable quantum excitation known as the axial Higgs mode.
An atomic-scale window into superconductivity paves the way for new quantum materials
Superconductors are materials with no electrical resistance whatsoever, commonly requiring extremely low temperatures. They are used in a wide range of domains, from medical applications to a central role in quantum computers. Superconductivity is caused by specially linked pairs of electrons known as Cooper pairs. So far, the occurrence of Cooper pairs has been measured indirectly macroscopically in bulk, but a new technique developed by researchers at Aalto University and Oak Ridge National Laboratories in the US can detect their occurrence with atomic precision.
Lasers trigger magnetism in atomically thin quantum materials
Researchers discovered that light can trigger a form of magnetism in a normally nonmagnetic material. This magnetism centers on the behavior of electron “spin.” By controlling & aligning electron spin at this level of detail & accuracy, this platform could have applications in quantum computing & simulation.
New algorithms advance the computing power of early-stage quantum computers
Scientists at the U.S. Department of Energy’s Ames Laboratory have developed computational quantum algorithms that are valuable tools to gain greater insight into the physics and chemistry of complex materials, and they are specifically designed to work on existing and near-future quantum computers.
Experiments confirm a quantum material’s unique response to circularly polarized laser light
SLAC scientists are probing topological insulators with circularly polarized light to reveal their many secrets. These exotic materials have potential for quantum computing and other technologies. A new study discovers that polarized laser light generates a unique signature from the topological surface.
Just by changing its shape, Argonne scientists show they can alter material properties
Argonne scientists have observed that when the shape of a thin film of metal oxide known as titania is confined at the mesoscale, its conductivity increases. This finding demonstrates that nanoscale confinement is a way to control quantum effects.
Tapping into magnets to clamp down on noise in quantum information
In a newly funded project, Argonne and the University of Illinois Urbana-Champaign will explore coupling magnetism and microwaves. This research will yield new insights that should benefit quantum sensing, data transfer and computing.
Layered Graphene with a Twist Displays Unique Quantum Confinement in 2-D
Bilayer graphene with one of the two layers twisted displayed unique resonant electronic behavior. Understanding how electrons move in such 2-D materials could shed light on how to manipulate them for quantum computing and communication.
Three Argonne projects receive DOE funding for breakthroughs in quantum information science
Three Argonne projects have received DOE funding to lay the groundwork for future breakthroughs in quantum information science.
Quantum Materials Cloak Thermal Radiation
Scientists demonstrated that ultrathin films of samarium nickel oxide can mask the thermal radiation emitted by hot materials. This is due to the material undergoing a gradual transition from insulator to conductor. This study shows that quantum materials such as samarium nickel oxide can manage thermal radiation with potential applications in infrared camouflage, privacy shielding, and heat transfer control.
Opening the gate to the next generation of information processing
Scientists have devised a means of achieving improved information processing with a new technology for effective gate operation. This technology has applications in classical electronics as well as quantum computing, communications and sensing.
Uncovering Hidden Local States in a Quantum Material
States of local broken symmetry at high temperature—observed in several materials, including one with a metal-insulator transition, an iron-based superconductor, and an insulating mineral part of the Earth’s upper mantle—may enable the technologically relevant properties arising at much-lower temperature.
Physicist wins early career grant to study nuclear physics, quantum phenomena
The U.S. Department of Energy has selected Iowa State’s Srimoyee Sen for an early career award that will help her study nuclear physics and quantum phenomena. The research could lead to the discovery of new materials that could one day contribute to speedy quantum computing or other applications.
A quantum step to a heat switch with no moving parts
Researchers have discovered a new electronic property at the frontier between the thermal and quantum sciences in a specially engineered metal alloy – and in the process identified a promising material for future devices that could turn heat on and off with the application of a magnetic “switch.”
Researchers Find Semimetal That Clings to a Quantum Precipice
In an open access paper published in Science Advances, Johns Hopkins physicists and colleagues at Rice University, the Vienna University of Technology (TU Wien), and the National Institute of Standards and Technology (NIST), present experimental evidence of naturally occurring quantum criticality in a material.
New Dual-Beam Microscope Installed at the Center for Functional Nanomaterials
This latest-generation tool, which combines a scanning electron microscope and focused-ion beam, has advanced capabilities for preparing and analyzing nanomaterial samples.
ORNL’s Sergei Kalinin elected Fellow of the Microscopy Society of America
Sergei Kalinin, a scientist and inventor at the Department of Energy’s Oak Ridge National Laboratory, has been elected a Fellow of the Microscopy Society of America professional society.
Brookhaven Lab and Northrop Grumman to Further Lab-Industry Collaborations
Through the U.S. Department of Energy’s Technologist in Residence program, Brookhaven Lab and Northrop Grumman scientists will partner on quantum materials research.
Blueprint for a robust quantum future
Researchers at Argonne National Laboratory, the University of Chicago and scientific organizations in Japan, Korea and Hungary have established an invaluable resource for those looking to discover new quantum systems.
Scientists observe complex tunable magnetism tied to electrical conduction in a topological material
Scientists at the U.S. Department of Energy’s Ames Laboratory have observed novel helical magnetic ordering in the topological compound EuIn2As2 which supports exotic electrical conduction tunable by a magnetic field.
Argonne scientists help explain phenomenon in hardware that could revolutionize AI
A group of scientists from around the country, including those at Argonne National Laboratory, have discovered a way to make AI-related hardware more efficient and sustainable.
Story tips: Quantum building blocks, high-pressure diamonds, wildfire ecology, quick cooling tooling and printing on the fly
ORNL story tips: Quantum building blocks, high-pressure diamonds, wildfire ecology, quick cooling tooling and printing on the fly
Researchers create ‘beautiful marriage’ of quantum enemies
Cornell University scientists have identified a new contender when it comes to quantum materials for computing and low-temperature electronics.
Designing Materials from First Principles with Yuan Ping
The UC Santa Cruz professor uses computing resources at Brookhaven Lab’s Center for Functional Nanomaterials to run calculations for quantum information science, spintronics, and energy research.
A new hands-off probe uses light to explore the subtleties of electron behavior in a topological insulator
Topological insulators are electron are superhighways on their edges and insulators everywhere else. Researchers used a process called high harmonic generation to separately probe electron behavior in both of those domains.
Copperizing the Complexity of Superconductivity
Copper oxides have the highest superconducting transition temperatures under normal conditions, but physicists aren’t sure why. A group of international researchers may have stumbled upon a major clue that could help revolutionize our understanding of these superconductive materials.
Pivotal discovery in quantum and classical information processing
Researchers have achieved, for the first time, electronically adjustable interactions between microwaves and a phenomenon in certain magnetic materials called spin waves. This could have application in quantum and classical information processing.
Russian government awards ‘megagrant’ to MIPT Center for Photonics and 2D Materials
The MIPT Center for Photonics and 2D Materials has been named among the winners of the eighth competition for megagrants from the Russian government. The funding will go toward research on advanced nanophotonics: quantum materials and artificial intelligence.
Automating 2-D Material Exfoliation with Suji Park
Park, a staff researcher at Brookhaven Lab’s Center for Functional Nanomaterials, is designing and building an automated system to generate high-quality ultrathin “flakes,” which can be stacked into layered structures that are essentially new materials.
Perimeter Institute launches Clay Riddell Centre for Quantum Matter
A new research hub at Perimeter Institute seeks to accelerate discovery in one of the fastest-growing fields in physics, thanks to a $10 million investment from the Riddell Family Charitable Foundation.
SLAC researchers find evidence for quantum fluctuations near a quantum critical point in a superconductor
Theory suggests that quantum critical points may be analogous to black holes as places where all sorts of strange phenomena can exist in a quantum material. Now scientists say that they have found strong evidence that QCPs and their associated fluctuations exist in a cuprate superconductor.
Brookhaven Lab to Lead Quantum Research Center
The U.S. Department of Energy Office of Science has selected Brookhaven National Laboratory to lead one of five National Quantum Information Science Research Centers. Through hardware-software co-design, the center—called the Co-design Center for Quantum Advantage—will advance quantum computing.
2D Electronics Get an Atomic Tuneup
Scientists at Berkeley Lab have demonstrated a new technique that could improve the performance of atomically thin semiconductors for next-generation electronics such as optoelectronics, thermoelectrics, and sensors.
Quantum Materials Quest Could Benefit From Graphene That Buckles
Graphene, an extremely thin two-dimensional layer of the graphite used in pencils, buckles when cooled while attached to a flat surface, resulting in beautiful pucker patterns that could benefit the search for novel quantum materials and superconductors, according to Rutgers-led research in the journal Nature. Quantum materials host strongly interacting electrons with special properties, such as entangled trajectories, that could provide building blocks for super-fast quantum computers. They also can become superconductors that could slash energy consumption by making power transmission and electronic devices more efficient.
Scientists Dive Deep Into Hidden World of Quantum States
A research team led by the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) has developed a technique that could lead to new electronic materials that surpass the limitations imposed by Moore’s Law.
Using chaos as a tool, scientists discover new method of making 3D-heterostructured materials
Scientists at the U.S. Department of Energy’s Ames Laboratory and their collaborators from Iowa State University have developed a new approach for generating layered, difficult-to-combine, heterostructured solids. Heterostructured materials, composed of layers of dissimilar building blocks display unique electronic transport and magnetic properties that are governed by quantum interactions between their structurally different building blocks, and open new avenues for electronic and energy applications.