KAZUHITO SHINTANI

J-GLOBAL         Last updated: May 18, 2019 at 02:41
 
Avatar
Name
KAZUHITO SHINTANI
Affiliation
The University of Electro-Communications
Job title
Emeritus Professor
Degree
Doctor of Philosophy(University of Tokyo), Master of Engineering(The University of Tokyo)

Profile

1. The low-Reynolds number flow past an elliptic cylinder is investigated by using the method of matched-asymptotic expansion. The flow near the elliptic cylinder is characterized in terms of the singulaities arranged at the two foci of the ellipse. In the flow around a flat plate, which is a limiting case of the elliptic cylinder, a vortex appears at an edge of the plate when the angle of attack of a uniform flow is near a right angle, and twin voritices appear when the angle of attack of the uniform flow is a right angle.
2. The strain profiles in pyramidal quantum dots are calculated by using the molecular-dynamics simulation. It is shown that strain profiles at nanoscale should be evaluated by means of the simulation with the Stillinger-Weber potential, and that the continuum theory fails in evaluating the strains within islands of the small sizes below 10nm.
3. The deformation properties of single-walled carbon nanotubes under tensile strain are examined by means of the molecular-dynamics simulation. It is shown that the Poisson ratio of them depends on both the imposed strain and the chirality. Such dependences can be understood in the light of the nanomechanics of the honeycomb lattice.
4. An atomistic model of limited-thickness Si(001) epitaxy at low temperatures is deduced from the results of the deposition simulation of silicon atoms. 2×1 dimer rows formed on the transient surfaces are broken by adatoms to induce reconstruction of new dimer rows on the next layer. Breakdown of epitaxy occurs when such renewal of surface dimers ceases owing to the energetical stabilization of dimers.

Research Areas

 
 

Academic & Professional Experience

 
Jan 1992
 - 
May 2002
助教授, 電気通信大学電気通信学部
 
Jun 2002
   
 
Professor, Faculty of Electro-Communications, University of Electro-Communications
 

Education

 
 
 - 
Mar 1977
Department of Aronautics, Faculty of Engineering, University of Tokyo
 
 
 - 
Mar 1979
Department of Aeronautics, School of Engineering, University of Tokyo
 
 
 - 
Mar 1982
Department of Aeronautics, School of Engineering, University of Tokyo
 

Awards & Honors

 
Jun 2013
日本材料科学会功労賞, 日本材料科学会
 

Published Papers

 
T. Iwata and K. Shintani
Physical Chemistry Chemical Physics   20(7) 5217-5226   Jan 2018   [Refereed]
The thermal conductivities (TCs) of graphene (g)/hexagonal boron nitride (hBN) heterobilayers with interlayer sp3 bonds are addressed via molecular dynamics simulation. It is revealed the TC of a g/hBN heterobilayer drastically decreases if there ...
Y. Joko, R. Sasaki, and K. Shintani
Physical Chemistry Chemical Physics   19(40) 27704-27715   Oct 2017   [Refereed]
The morphology of corannulene molecules encapsulated in a single-walled carbon nanotube (SWCNT) is addressed using atomistic simulations. Dynamic simulation (DS) revealed that corannulene molecules encapsulated in a SWCNT tend to form concave-conc...
R. Sasaki and K. Shintani
MRS Advances   2(1) 45-50   Dec 2016   [Refereed]
Pillared-graphene is one of nanocarbon hybrids. It consists of graphene sheets and carbon nanotubes (CNTs); the latter are bonded vertically to the former. In order to investigate the hardness of pillared-graphene, indentation simulations are perf...
T. Iwata and K. Shintani
MRS Advances   2(1) 15-20   Dec 2016   [Refereed]
The rectification of heat in graphene nanoribbons (GNRs) of asymmetric geometries is investigated by means of nonequilibrium molecular dynamics (NEMD). Two kinds of geometries of GNRs are addressed; a trapezoidal or T-shaped step is inserted halfw...
K. Mouri and K. Shintani
Physical Chemistry Chemical Physics   18(45) 31043-31053   Oct 2016   [Refereed]
The stacking morphologies of polycyclic aromatic hydrocarbon (PAH) molecules encapsulated in a single-walled carbon nanotube (SWCNT) are investigated by using molecular-dynamics (MD) method. For coronene molecules, both conjugate-gradient (CG) ene...

Misc

 
Nanomechanics by means of molecular-dynamics simulation
K. Shintani
Materials Science and Technology   41(5) 234-239   Oct 2004   [Refereed]

Conference Activities & Talks

 
Molecular Dynamics of Carbon Materials [Invited]
K. Shintani
2018 Annual Meeting of the Materials Science Society of Japan   31 May 2018   Materials Science Society of Japan
種々のPAHのCNT内包過程と内部積層構造の形態を分子動力学(MD)法によって調べた結果をレヴューした.また,二層グラフェンの間にsp3層間結合を人為的に挿入してその熱伝導度を低減させる方法がグラフェン/hBNヘテロ二層に対しても有効であることを示した.
Reduction of the Thermal Conductivity of Bilayer Graphene via Interlayer sp3 Bonds
T. Iwata and K. Shintani
2018 Annual Meeting of the Materials Science Society of Japan   31 May 2018   Materials Science Society of Japan
二層グラフェンに規則的配置と不規則配置の二種類のsp3層間結合を広い範囲の分率で導入した場合にその熱伝導度がどのように変化するかを調べた.
T. Iwata and K. Shintani
European Conference on Nanofilms 2018   22 Mar 2018   hosted by the ecnf2018 conference committee and recognized by European Materials Research Society.
Sharp decrease and existence of the minimum of the thermal conductivity (TC) of a graphene/hexagonal boron nitride (hBN) heterobilayer due to interlayer sp3 bonds are demonstarted via nonequilibrium molecular dynamics simulation. Since interlayer ...
佐々木遼、新谷一人
日本機械学会関東支部第24期総会・講演会講演論文集   18 Mar 2018   Japan Society of Mechanical Engineers
Dynamic encapsulation of pyrenes into a single-walled carbon nanotube (SWCNT) is addressed via molecular dynamics (MD) simulation. It is revealed the final structures of encapsulated pyrenes are classified into two categories according to the magn...
T. Iwata and K. Shintani
2017 Materials Research Society Fall Meeting   28 Nov 2017   Materials Research Society
A graphene/hexagonal boron nitride (hBN) heterobilayer (HBL) is among two-dimensional van der Waals heterostructures. In the present paper, the effects of interlayer bonds in a graphene/hBN HBL on its thermal conductivity (TC) are addressed using ...

Teaching Experience

 

Research Grants & Projects

 
Atomistic elucidation and control of the mechanical and thermal properties of nanocarbon hybrid structures
Project Year: 2015 - 2017
Atomistic elucidation and control of the mechanical properties of graphene nanostructures
Project Year: 2012 - 2014
Nanoscopic elucidation of coarsening and formation of core-shell nanoparticles via coalescence
Project Year: 2009 - 2011
Elucidation of the growth mechanism and mechanical properties of semiconductor nanowires by means of atomistic simulation
Project Year: 2007 - 2008
Study of the formation process and mechanical properties of surface nanostructures by means of atomistic simulation
Project Year: 2005 - 2006