scholarly journals Phase-Field Simulation of Shape Evolution and Bimodal Size Distribution of Self-Assembled Quantum Dots

2006 ◽  
Vol 55 (10) ◽  
pp. 929-935
Author(s):  
Tomohiro TAKAKI ◽  
Yoshihiro TOMITA
Keyword(s):  
Quantum Dots ◽  
Size Distribution ◽  
Phase Field ◽  
Shape Evolution ◽  
Bimodal Size Distribution ◽  
Phase Field Simulation ◽  
Field Simulation ◽  
Self Assembled

Red Luminesecnce from Self-Assembled InAlAs/AlGaAs Quantum Dots with Bimodal Size Distribution

1999 ◽  
Vol 16 (4) ◽  
pp. 298-300 ◽  
Author(s):  
Wei Zhou ◽  
Bo Xu ◽  
Huai-zhe Xu ◽  
Feng-qi Liu ◽  
Qian Gong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Size Distribution ◽  
Bimodal Size Distribution ◽  
Self Assembled

Phase-Field Simulation on Coarsening of the γ'Phase Particles in Ni-Based Superalloys Considering Elastic Inhomogeneity

2010 ◽  
Vol 297-301 ◽  
pp. 376-383 ◽  
Author(s):  
Yuhki Tsukada ◽  
Yoshinori Murata ◽  
Toshiyuki Koyama ◽  
Masahiko Morinaga
Keyword(s):  
Shear Modulus ◽  
Size Distribution ◽  
Phase Field ◽  
Elastic Anisotropy ◽  
Elastic Strain Energy ◽  
Inhomogeneous System ◽  
Perturbation Scheme ◽  
Phase Field Simulation ◽  
Field Simulation ◽  
Elastic Inhomogeneity

A phase-field simulation is performed to examine the effect of elastic inhomogeneity between the  and ’ phases on coarsening of the ’ phase in Ni-based superalloys. In the calculation of elastic strain energy, the mechanical equilibrium equation in elastically inhomogeneous system is solved by an iterative-perturbation scheme. On the basis of the elastic constants of a practical Ni-based superalloy, a series of simulations is performed in which both elastic anisotropy and shear modulus are varied independently. The variation of elastic anisotropy gives significant effect on both morphology and size distribution function of the ’ particles, whereas the variation of shear modulus gives little effect on them. Furthermore, it is found that the coarsening rate constant of the cubic growth raw changes and increases with increasing the standard deviation of the ’ size distribution.

scholarly journals Two-dimensional phase-field simulation of self-assembled quantum dot formation

2006 ◽  
Vol 287 (2) ◽  
pp. 495-499 ◽  
Author(s):  
Tomohiro Takaki ◽  
Tadashi Hasebe ◽  
Yoshihiro Tomita
Keyword(s):  
Quantum Dot ◽  
Phase Field ◽  
Two Dimensional ◽  
Phase Field Simulation ◽  
Field Simulation ◽  
Self Assembled

Effect of the bimodal size distribution on the optical properties of self-assembled Ge/Si(001) quantum dots

2000 ◽  
Vol 380 (1-2) ◽  
pp. 78-81 ◽  
Author(s):  
V Yam ◽  
Vinh Le Thanh ◽  
U Compagnon ◽  
U Gennser ◽  
P Boucaud ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Size Distribution ◽  
Bimodal Size Distribution ◽  
Self Assembled

Phase-field simulation of dose rate effect on the Cu precipitation with neutron irradiation

2021 ◽  
Vol 23 (7) ◽  
pp. 4217-4229
Author(s):  
Shahid Maqbool ◽  
Yongsheng Li ◽  
Suleman Muhammad ◽  
Zhengwei Yan ◽  
Shujing Shi
Keyword(s):  
Dose Rate ◽  
Neutron Irradiation ◽  
Phase Field ◽  
Volume Fraction ◽  
Rate Effect ◽  
Phase Field Simulation ◽  
Field Simulation ◽  
Cu Alloys ◽  
Dose Rate Effect

Radiation-enhanced precipitation (REP) in Fe–Cu alloys results in higher volume fraction and radius of Cu precipitates.

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