A5045358293- Transition Metal Oxide Nanomaterials
- Quantum and electron transport phenomena
- Electronic and Structural Properties of Oxides
- GaN-based semiconductor devices and materials
- Physics of Superconductivity and Magnetism
- Graphite, nuclear technology, radiation studies
- Atomic and Subatomic Physics Research
- Radiation Therapy and Dosimetry
- Advanced NMR Techniques and Applications
- Gas Sensing Nanomaterials and Sensors
- Nuclear reactor physics and engineering
- Theoretical and Computational Physics
- Superconducting Materials and Applications
- Semiconductor materials and interfaces
- Quantum optics and atomic interactions
- Semiconductor materials and devices
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Electrical Measurement Techniques
- nanoparticles nucleation surface interactions
- Conducting polymers and applications
- Nuclear Materials and Properties
- Metallurgical Processes and Thermodynamics
- DNA Repair Mechanisms
- Particle accelerators and beam dynamics
- Spectroscopy and Quantum Chemical Studies
Japan Atomic Energy Agency
2023-2024
Niigata University
2019-2023
Sumitomo Metal Mining (Japan)
1998
The Particle and Heavy Ion Transport code System (PHITS) is a general-purpose Monte Carlo radiation transport that can simulate the behavior of most particle species with energies up to 1 TeV (per nucleon for ions). Its new version, PHITS3.33, was recently developed released public. In compatibility nuclear data libraries algorithm track-structure modes have been improved, they are recommended be used certain simulation conditions. Some utility functions software integrated into PHITS...
This paper presents the latest updates on PHITS, a versatile radiation transport code, focusing specifically track-structure models. Track structure calculations are methods used to simulate movement of charged particles while explicitly considering each atomic reaction. Initially developed for biology, these calculation aimed analyze radiation-induced damage DNA and chromosomes. Several models, including PHITS-ETS, PHITS-ETS Si, PHITS-KURBUC, ETSART, ITSART, have been implemented PHITS....
First-principles calculations have been used to investigate the electronic structure of a layered organic–inorganic hybrid material (WO3)2(4,4′-bipyridyl) in which organic bipyridyl layers and WO3 monolayers are alternately stacked. We examine doping effects Na F atoms as typical cases cation anion doping, respectively. In case doped electrons mostly injected into Fermi level sits narrow bands largely hybridized with Na-3s orbital. It is considered be difficult obtain metallic state view...
First-principles calculations are performed to investigate the electronic states of 1/1 and 2/1 approximants with composition Al$_{15}$Zn$_{40}$Mg$_{45}$ which is close quasicrystal (QC) Al$_{14.9}$Zn$_{41.0}$Mg$_{44.1}$ in superconductivity recently discovered. The density for approximant shows a wide pseudogap structure near Fermi level as commonly observed various QCs, whereas those do not show such pseudogap. Instead pseudogap, remarkable narrow at contrast approximant, shallow hump...
Abstract To identify the decoherence origin, frequency spectra using multiple π-pulses have been extensively studied. However, little has discussed on how to define spectral intensities from multiple-echo decays and incorporate Hahn-echo T 2 in noise spectra. Here, we show that experiments based two theories solve these issues. As proved previous theory, intensity is given as decay long-time limit. Unlike initial process of decays, this definition not only theoretically proven but also...
Abstract The superconductivity in tungsten bronze A x WO 3 (A═alkali metal) is studied based on first-principles calculations and orbital fluctuation theory. We discuss the effects of electron-Jahn-Teller phonon interaction on-site Coulomb random phase approximation, obtain a diagram U — g plane low-doped regime at ~0.05, where high-temperature has been experimentally observed.
Abstract The first-principles calculation is performed to investigate the surface electronic structure of WO 3 in which high- T c superconductivity up =120 K observed when alkali metals are alightly doped. To take into account effect, we employ tetragonal 14-layers slab model and find that a remarkable in-gap band with narrow width 0.13 eV appears at about 0.6 below conduction bands. Detailed analysis wave functions reveal mainly consists orbitals first second layers on surface. Therefore,...
To identify the decoherence origin, frequency spectra using multiple {\pi}-pulses have been extensively studied. However, little has discussed on how to define spectral intensities from multiple-echo decays and incorporate Hahn-echo T_2 in noise spectra. Here, we show that experiments based two theories solve these issues. With previous theory clarifying intensity should be given as decay long-time limit, can deduced without experimental artifacts usually entailed initial process. The other...