Hideo Miura

  • Citations Per Year
Learn More
A case of adult, chronic or non-neuropathic, Gaucher's disease is presented. Severe bony changes, particularly involving the lower limbs developed after a splenectomy had been carried out. Our patient had all the orthopaedic complications of Gaucher's disease. Further, a huge tumour was present in the right tibia caused by the proliferation of Gaucher(More)
The effect of strain and intrinsic defects on both electronic and structural characteristics of HfO<sub>2-x</sub> used for sub-100-nm semiconductor devices was analyzed by a quantum chemical molecular dynamics analysis. The magnitude of the band gap of HfO<sub>2</sub> decreases by about 10% under the applied strain of 5%. The stable crystallographic(More)
Control of the interfacial crystallographic structure between a dielectric film and a gate electrode is one of the most critical issues for assuring the high performance and the reliability of a stacked MOS structure using high-k dielectric thin films. In this study, quantum chemical molecular dynamics was applied to explicate the mechanism of degradation(More)
We propose a new leakage mechanism that depends on the mechanical strain in high-k gate oxides, namely "high strain-induced leakage current". To explain this current, we analyzed the strain dependence of the leakage current of gate oxides by performing a first-principles calculation. The analysis showed that the leakage current drastically increases with(More)
The effect of point defects such as oxygen vacancy and carbon interstitial on structural characteristics of W/HfO<sub>2</sub> was analyzed by a quantum chemical molecular dynamics method. Post-oxidation annealing is effective for eliminating the oxygen deficiency of gate dielectric films. However, the excess oxygen atoms may remain in the oxide film after(More)
Grain-boundary grooving in an Al thin film was analyzed by molecular-dynamics simulation. The simulation result showed that the groove was formed by atom transport due to diffusion at the intersection of the grain-boundary and free surface. The effect of impurity on groove formation was analyzed in terms of atomic radius and bond energy. It was found that(More)
In this study, the influence of composition of thin films on the interface integrity between a hafnium dioxide thin film and a gate electrode was investigated by using a quantum chemical molecular dynamics method. Effect of the fluctuation of the composition around the HfO<inf>2&#x00B1;x</inf>/metal interface on the formation of the interfacial layer was(More)
In this study, the change in electronic properties of carbon nanotubes (CNTs) under axial compressive strain was analyzed by using Green's function method based on tight-binding approach. A single (9, 0) CNT structure was used for the calculation. The column buckling of the CNT was occurred and a kink was formed in the buckled CNT with increasing(More)
Since the discovery of carbon nanotubes (CNTs), graphene and graphene nanoribbons (GNRs), many efforts have been made to apply these carbon nanomaterials to electronic devices and sensors. Strain sensitivity of CNTs and GNRs is one of their unique electronic properties. However, the effect of complex strain field such as buckling deformation on the(More)