24 citations · 52 across the 3 of their papers we have counts for
3 papers
physics.comp-ph2009★ 24 cited
Tuning linear and nonlinear optical properties of wurtzite GaN by c-axial stress
Duanjun Cai, Guang-Yu Guo
We study the linear and nonlinear optical properties of wurtzite GaN under c-axial stress field, using density functional theory calculations. The fully structural optimization at…
physics.comp-ph2009★ 9 cited
Microscopic origin of light emission in Al_yGa_{1-y}N/GaN superlattice: Band profile and active site
Duanjun Cai, Junyong Kang, Guang-Yu Guo
We present first-principles calculations of AlGaN/GaN superlattice, clarifying the microscopic origin of the light emission and revealing the effect of local polarization within th…
cond-mat.mes-hall2008★ 19 cited
Torque and conventional spin-Hall currents in two-dimensional spin-orbit coupled systems: Universal relation and hyper-selection rule
Tsung-Wei Chen, Guang-Yu Guo
We investigate torque and also conventionally defined spin-Hall currents in two-dimensional (2D) spin-orbit coupled systems of spin-1/2 particles within the linear response Kubo fo…