Institution
National Institute for Materials Science
Recent research
- Materials & EnergyOpen access
High-Spatial-ResolutionNear-Infrared ThermographyUsing an Uncooled Silicon-Based Camera
Abstract The demand for noncontact temperature measurements is growing as the microelectronic features to be probed become progressively smaller. However, traditional thermal imaging with infrared cameras is fundamentally constrained by the micron-long wavelength of thermal emiss...
- Materials & Energy
Abstract Crystal engineering of anisotropic molecular solids that translate photoinduced charge transfer into switchable magnetic exchange offers a route to optically addressable exchange-correlated magnetic states. Here, we show that (MV)[Co(pdms)2](MeOH)2(MeCN), a donor–accepto...
- Physics & SpaceOpen access
Moiré flat bands in graphene systems proximitized by transition-metal dichalcogenides (TMDCs) provide a setting where spin-orbit coupling (SOC) can reshape band topology. The crystallographic alignment angle Φ between TMDC and graphene layers is predicted to tune the balance of I...
- Physics & SpaceOpen access
Molecular-Scale Observation of Flexibility and Thermal Motions in Surface-Coordinated Polymers
We report a molecular-scale study of a one-dimensional coordination polymer formed on a Cu(111) surface. A tailored ligand, 2,7-dicyano-9,9-dimethylfluorene (DCF), was designed to reduce interactions with the surface while enabling directional coordination with Cu adatoms. Scanni...
- Materials & Energy
Understanding and controlling vortex motion in superconductors are important both for suppressing dissipation in superconducting devices and for device applications that exploit vortices. In this work, we quantitatively imaged the stray magnetic field distribution of vortices in...
- Materials & EnergyOpen access
Correlated insulator Moiré bolometer
Light incident on an insulator is generally not expected to turn it into a metal without invoking intense ultrafast excitation that leads to transient structural transitions. Here we show that magic-angle twisted bilayer graphene tuned to half filling of the moiré band provides a...
- Materials & Energy
Abstract Magnesium oxide (MgO) is attractive for CO2 utilization, because interaction with O2. However, the electronic inertness has limited its application in electrochemical catalysis. Herein, spin-polarized dDFT calculations with the BEEF-vdW functional were performed to evalu...
- Materials & Energy
Abstract We report a pressure-responsive molecule-based magnet featuring a layered cyanido-bridged Co–W assembly, [{CoII(4-phenoxypyridine)4}3{WV(CN)8}2], exhibiting a distinct pressure-selective magnetic behavior. The compound forms two-dimensional charge-transfer layers with la...
- Engineering & TechnologyOpen access
Mid-infrared long-range surface polaritons in two-dimensional van der Waals materials
The discovery of graphene plasmons (GPs) and hyperbolic phonon polaritons (HPhPs) in two-dimensional (2D) van der Waals (vdW) materials has enabled extreme light confinement and enhanced light-matter interactions, holding the promise for miniaturized mid-infrared (mid-IR) photoni...
- Materials & EnergyOpen access
ABSTRACT The precise installation of highly interactive functional groups on pore surfaces remains a central challenge in crystalline porous materials since such groups often interfere with framework formation. In this study, supramolecular protection–deprotection was performed i...
- Materials & EnergyOpen access
Robust field-free superconducting diode effect in FeTe0.55Se0.45
The superconducting diode effect (SDE), a nonreciprocal phenomenon where the critical supercurrent differs depending on the direction of current flow, is a promising foundation for superconducting logic and memory. Realizing its full potential requires a diode that operates witho...