Blog
- Scientists discover way to 'grow' sub-nanometer sized transistors 18/07/2024 A research team led by Director Jo Moon-Ho of the Center for Van der Waals Quantum Solids within the Institute for Basic Science (IBS) has implemented a novel method to achieve epitaxial growth of 1D metallic materials with a width of less than 1 nm. The group applied this process to develop a new structure for 2D semiconductor logic circuits. Notably, they used the 1D metals as a gate electrode of the ultra-miniaturized transistor.
- High-selectivity graphene membranes enhance CO₂ capture efficiency 16/07/2024 Reducing carbon dioxide (CO₂) emissions is a crucial step towards mitigating climate change and protecting the environment on Earth. One proposed technology for reducing CO₂ emissions, particularly from power plants and industrial establishments, is carbon capture.
- Researchers explain the imaging mechanisms of atomic force microscopy in 3D 12/07/2024 Researchers at Nano Life Science Institute (WPI-NanoLSI), Kanazawa University report the 3D imaging of a suspended nanostructure. The technique used is an extension of atomic force microscopy and is a promising approach for visualizing various 3D biological systems.
- New probe reveals water-ice microstructures 10/07/2024 Ice is believed to have played a crucial role in the emergence of life. One reason is that organic molecules can be excluded into the gaps between the crystal lattice by orderly arranged water molecules, leading to the concentration of organic compounds.
- Redox-fluid ligand stabilised as triradical for the first time 04/07/2024 An exotic triradical aluminium complex is the first of its kind to be isolated and characterised. Containing three ‘redox non-innocent’ dithiolene ligands stabilised in radical form, the new species exists in an unusual quartet ground state and could have implications for the design of superconducting and single-molecule magnetic materials.
- Quantum computers are like kaleidoscopes: Why unusual metaphors help illustrate science and technology 02/07/2024 Quantum computing is like Forrest Gump's box of chocolates: You never know what you're gonna get. Quantum phenomena—the behavior of matter and energy at the atomic and subatomic levels—are not definite, one thing or another. They are opaque clouds of possibility, or more precisely, probabilities. When someone observes a quantum system, it loses its quantum-ness and "collapses" into a definite state.
- Experimental observation of Earth’s rotation with quantum entanglement 27/06/2024 Precision interferometry with quantum states has emerged as an essential tool for experimentally answering fundamental questions in physics. Optical quantum interferometers are of particular interest because of mature methods for generating and manipulating quantum states of light. Their increased sensitivity promises to enable tests of quantum phenomena, such as entanglement, in regimes where tiny gravitational effects come into play. However, this requires long and decoherence-free processing of quantum entanglement, which, for large interferometric areas, remains unexplored territory. Here, we present a table-top experiment using maximally path-entangled quantum states of light in a large-scale interferometer sensitive enough to measure the rotation rate of Earth. The achieved sensitivity of 5 μrad s−1 constitutes the highest rotation resolution ever reached with optical quantum interferometers. Further improvements to our methodology will enable measurements of general-relativistic effects on entangled photons, allowing the exploration of the interplay between quantum mechanics and general relativity, along with tests for fundamental physics.
- A new and simple method for super-resolution microscopy 25/06/2024 MINFLUX is a powerful microscopy technique that allows researchers to see objects much smaller than the wavelength of light. A newly developed evolution of the process uses a simpler device to create the light pattern needed to examine the molecule, making the entire process faster, cheaper and easier to use for future discoveries.
- Orbital-dependent electron correlation in double-layer nickelate La3Ni2O7 20/06/2024 The latest discovery of high temperature superconductivity near 80 K in La3Ni2O7 under high pressure has attracted much attention. Many proposals are put forth to understand the origin of superconductivity. The determination of electronic structures is a prerequisite to establish theories to understand superconductivity in nickelates but is still lacking. Here we report our direct measurement of the electronic structures of La3Ni2O7 by high-resolution angle-resolved photoemission spectroscopy. The Fermi surface and band structures of La3Ni2O7 are observed and compared with the band structure calculations. Strong electron correlations are revealed which are orbital- and momentum-dependent. A flat band is formed from the Ni-3d orbitals around the zone corner which is ~ 50 meV below the Fermi level and exhibits the strongest electron correlation. In many theoretical proposals, this band is expected to play the dominant role in generating superconductivity in La3Ni2O7. Our observations provide key experimental information to understand the electronic structure and origin of high temperature superconductivity in La3Ni2O7.
- Atomic-resolution imaging shows why ice is so slippery 18/06/2024 A team of physicists affiliated with several institutions in China has uncovered the reason behind the slipperiness of ice. In their study, published in the journal Nature, the group used atomic force microscopy to get a closer look at the surface of ice at different temperatures.
- Scientists discover single atom defect in 2D material can hold quantum information at room temperature 13/06/2024 Scientists have discovered that a "single atomic defect" in a layered 2D material can hold onto quantum information for microseconds at room temperature, underscoring the potential of 2D materials in advancing quantum technologies.