Presentation Information
[9a-N305-11]Habit change in crystal growth shape: How the nanoscale Kardar-Parisi-Zhang rough surfaces affect the mesoscale shape
〇Noriko Akutsu1, Akira Kusaba1, Yoshihiro Kangawa1, Kozo Fujiwara2, Kensaku Maeda3, Yasuhiro Akutsu4 (1.RIAM, Kyushu Univ., 2.IMR Tohoku Univ., 3.JAIST, 4.Grad. School of Sci. Osaka Univ.)
Keywords:
Crystal growth shape,Kardar-Parisi-Zhang kinetic roughening,Crystal growth of Si
The slowly varying growth shape of a crystallite near equilibrium was calculated from the equation derived by Müller-Krumbhaar et al., which was based on the time-dependent Ginzburg-Landau concept for crystal surfaces. The surface stiffness and surface kinetic coefficients, which are required as coefficients in the equation, were calculated using the density matrix renormalization group method and the Monte Carlo method, respectively.
When the driving force for crystal growth increases, the crystal habit changes due to KPZ kinetic roughening on the terrace surfaces.
When the driving force for crystal growth increases, the crystal habit changes due to KPZ kinetic roughening on the terrace surfaces.