A5001171873- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Molecular Junctions and Nanostructures
- Organic and Molecular Conductors Research
- Analytical Chemistry and Sensors
- Electronic and Structural Properties of Oxides
- Magnetism in coordination complexes
- Semiconductor materials and devices
- Microfluidic and Capillary Electrophoresis Applications
- Quantum and electron transport phenomena
- Physics of Superconductivity and Magnetism
- Advancements in PLL and VCO Technologies
- Perovskite Materials and Applications
- Lanthanide and Transition Metal Complexes
- Photochromic and Fluorescence Chemistry
- Advanced Memory and Neural Computing
- Organic Electronics and Photovoltaics
- Magnetic properties of thin films
- Conducting polymers and applications
- Topological Materials and Phenomena
- 2D Materials and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Acoustic Wave Resonator Technologies
- Quantum Dots Synthesis And Properties
- Metal-Organic Frameworks: Synthesis and Applications
Kyoto University
2020-2025
Saitama Prefecture
2025
Japan Science and Technology Agency
2022-2023
Institute for Molecular Science
2013-2022
Nagoya University
2022
Central Leather Research Institute
2022
University of Hyogo
2022
The Graduate University for Advanced Studies, SOKENDAI
2017-2018
RIKEN
2013-2018
Nippon Soken (Japan)
2013-2017
Artificial molecular switches and machines that enable the directional movements of components by external stimuli have undergone rapid advances over past several decades. Particularly, overcrowded alkene-based artificial motors are highly attractive from viewpoint chirality switching during rotational steps. However, integration these into solid-state devices is still challenging. Herein, we present an example a spin-filtering device can switch spin polarization direction light irradiation...
Chirality-induced spin transport phenomena are investigated at room temperature without magnetic fields in a monoaxial chiral dichalcogenide ${\mathrm{CrNb}}_{3}{\mathrm{S}}_{6}$. We found that polarization occurs these bulk crystals under charge current flowing along the principal $c$ axis. Such detected as an inverse Hall signal which is induced on detection electrode absorbs polarized from crystal. The response observed when applying into electrode. sign reverses device with opposite...
Light switch for superconductivity The conducting properties of materials sensitively depend on the available carrier concentration. Physicists can vary this concentration by inducing carriers in material; example, placing it next to an ionic liquid electric field. Suda et al. instead used a layer molecule spiropyran, which changes from non-ionic form when is irradiated ultraviolet (UV) light. authors placed top thin crystal organic material. When they shone UV light adjacent material became...
The chiral-induced spin selectivity effect enables the application of chiral organic materials for spintronics and spin-dependent electrochemical applications. It is demonstrated on various monolayers, in which their conversion efficiency limited. On other hand, relatively high polarization (SP) observed bulk materials; however, poor electronic conductivities limit application. Here, design MoS2 with a SP conductivity reported. Chirality introduced to layers through intercalation...
The emergence of the chiral-induced spin-selectivity (CISS) effect offers a new avenue for chiral organic molecules to autonomously manipulate spin configurations, thereby opening up possibilities in spintronics and spin-dependent electrochemical applications. Despite extensive exploration various systems as filters, one often encounters challenges achieving simultaneously high conductivity polarization (SP). In this study, promising van der Waals superlattice, specifically TiS2 crystal, is...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIntegration of enzyme-immobilized column with electrochemical flow cell using micromachining techniques for a glucose detection systemYuji. Murakami, Toshifumi. Takeuchi, Kenji. Yokoyama, Eiichi. Tamiya, Isao. Karube, and Masayuki. SudaCite this: Anal. Chem. 1993, 65, 20, 2731–2735Publication Date (Print):October 15, 1993Publication History Published online1 May 2002Published inissue 15 October...
Out of nowhere: Significant photoinduced changes in ferromagnetism have been observed at the interfaces between gold nanoparticles (Au NPs) and azobenzene-derivatized thiols. These photomagnetic effects could be attributed to d-charge losses resulting from photoisomerization azo ligands (see picture), which are accompanied by inversion surface dipoles opposite sign.
There has been a great interest in developing photoswitchable magnetic materials because of their possible applications for future high-density information storage media. In fact, however, the examples reported so far did not show ferromagnetic behavior at room temperature. From viewpoint practical application to recording systems, ability fix moments such that they still exhibit room-temperature ferromagnetism is an absolute requirement. Here, we have designed reversible FePt nanoparticles...
We have observed the emergence of a large anisotropic magnetization and significant photoinduced changes in magentization that appear at interface between gold film an azobenzene-containing self-assembled monolayer. The value was extremely high, up to 50 μB per adsorbed molecule. These photomagnetic effects can be attributed change loss d charge due photoisomerization azobenzene monolayer, which is accompanied by inversion surface dipoles. Furthermore, we also reversible work function...
A massless Dirac fermion ststem was realized in $\ensuremath{\alpha}$-(BEDT-TTF)${}_{2}$I${}_{3}$ [BEDT-TTF=bis(ethylenedithio)tetrathiafulvalene] under high pressure. In contrast to graphene, this is the first bulk (multilayered) material. Another important difference from graphene that system has highly tilted cones. case, conventional chiral symmetry broken a magnetic field. Here we experimentally addressed following question: Is Landau level structure of with cones same as [conventional...
Mimicking the interconvertible carbon allotropes of 2-dimensional (2D) graphene and 1-dimensional (1D) nanotubes (CNTs), herein we report in situ transformation 2D π-conjugated covalent organic frameworks (COFs) sheet into 1D nanotubular structures via self-assembly sheets at solvent interfaces. The facile “roll-sheets” resulted coaxial with uniform cross-sectional diameter, which was realized for diazapyrene-based COFs but not corresponding pyrene COF, although both possess similar chemical...
We have fabricated an integrated flow cell as a total microanalysis system (microTAS). This (size, 15 x 20 mm; inner volume, 12.2 microL) was designed for rational analyzing of lactate determination serum. made by micromachining techniques and consisted two hollows oxidase (LOD) reactor mixing cell, spiral groove, three penetrated holes. To form the capillary, these patterns, etched on silicon wafer, were attached to glass plate anodic bonding method. A photodiode put under part capillary....
The magnetic properties of different-sized Pt nanoparticles coated by alkanethiol molecules with different carbon chain lengths (1-octadecanethiol, 1-dodecanthiol, and 1-octanethiol) were systematically studied means measurement, x-ray circular dichroism (XMCD), absorption near-edge structure (XANES), electron spin resonance (ESR). Furthermore, azobenzene-derivatized thiol coating was performed to detect the effect on characteristics geometrical transformation between cis trans states...
We have shown that UV-light irradiation during plasma process anomalously enhances in-diffusion of the defects deactivating Si donor in n-GaN. The region where was deactivated by plasma-induced became several times deeper upon superimposed than sample just exposed to emission. It also found external light with below-band-gap energy did not affect defect in-diffusion, and hence we can suggest electron–hole pair generation is essential for enhancement in-diffusion.
In electronic-type ferroelectrics, where dipole moments produced by the variations of electron configurations are aligned, polarization is expected to be rapidly controlled electric fields. Such a feature can used for high-speed electric-switching and memory devices. Electronic-type ferroelectrics include charge degrees freedom, so that they sometimes conductive, complicating dielectric measurements. This makes difficult exploration understanding their ferroelectric nature. Here, we show...
Getting organized: Assemblies of ferromagnetic FePt nanoparticles were generated with large perpendicular magnetic anisotropy by a magnetic-field-assisted layer-by-layer method, and subsequently films consisting L1(0)-FePt organic polymers prepared. These are phototunable when photochromic molecules used as polymer layers.
Abstract The ability to manipulate the behavior of electrons at organic–inorganic interfaces is crucial importance in development future molecular devices. It has been shown that interface dipoles, created by chemisorption a self-assembled organic monolayer (SAM) on solid surface, induce carrier injection effects. This means electronic properties can be manipulated designing dipoles and arrangements SAMs. In this study, novel strategy photo-control through use photochromic SAMs proposed,...
A novel type of flexible organic field-effect transistor in which strain effects can be finely tuned continuously has been fabricated. In this device structure, electronic phases controlled both by "band-filling" and "band-width" continuously. Finally, co-regulation the strongly-correlated material realize field-induced emergence superconducting fractions at low temperature. As a service to our authors readers, journal provides supporting information supplied authors. Such materials are peer...