phaes transition dynamics with elasticity, plastic deformation, and hydrodynamics
-
solid-liquid phase transitions
hydrodynamic and elasto-plastic effects on solid-liquid phase transitions.
Phys. Rev. E 83, 041504 (2011).
[PDF]
(morphological instability with hydrodynamic coupling, effects of shear flow, ATG instability)
-
structural phase transformation in solids, orientational glass
molecular dynamics study of structural phase transformation, orientation glass formation with impurity, and shape memory effects
EPL 100, 16006 (2012).
[PDF]
Phys. Rev. E 89, 022308 (2014).
[PDF]
dislocation formation in martensitic phase transitions
phase transitions in ferroelectric solid/glass
-
Formation of double glass in binary mixtures of anisotropic particles
Phys. Rev. E 88, 042317 (2013).
[PDF]
We study glass transitions in mixtures of elliptic and circular particles in two dimensions using an orientation-dependent Lennard-Jones potential.
Changing anisotropic parameters of the potential, the size ratio, and the concentration, we realize double glass,
where both the particle positions and orientations are disordered but still hold mesoscopic order.
Electric fields in soft matter
-
Extension of the Ewald method
J. Chem. Phys. 139, 124108 (2013).
[PDF]
We develop an efficient Ewald method of molecular dynamics simulation for calculating the electrostatic
interactions among charged and polar particles between parallel metallic plates,
where we may apply an electric field with an arbitrary size.
We use the fact that the potential from the surface charges is equivalent to the sum of those from image charges and dipoles located outside the cell.
-
Water under electric fields
J. Phys. Chem. B 119, 9377 (2015).
J. Chem. Phys. 143, 154503 (2015).
We study water between parallel metal walls under applied electric field accounting for the image effect.
-
Hydrodynamics of charge regulating colloids
Soft Matter 14, 4711-4720 (2018).
We establish hydrodynamic simulation methods of charge regulating colloids, and study its effects on structure formation and electrophoresis.
-
Ferroelectric materials and relaxor
J. Phys.: Condens. Matter 29, 165401 (2017).
Relaxor-like behaviour in mixture of dipolar spheroids and nonpolar impurities.
-
Antiferroelectrics
PNAS 115, 9917-9922 (2018).
(see also IIS Press release)
Simple particle (dipole) model exhibiting ferroelectric--antiferroelectric phase transitions with large strain-polarization coupling.
HOME