supported by the National Natural Science Foundation of China (Grant No. 51101135);the Natural Science Foundation of Shandong (Grant No. ZR2010AM002)
We investigate the structure,trapping,and diffusion behaviors of helium(He) at vacancy in a Fe single crystal using first-principles simulations.Vacancy with more space can provide the lower electron density region fo...
supported by the National Natural Science Foundation of China (Grant No. 51101135)
We investigate diffusion behaviors of hydrogen(H),deuterium(D),and tritium(T) in bulk niobium(Nb) using first-principles method.The diffusion energy barrier with quantum-correction has been calculated to be 0.12 eV,wh...
Project supported by the National Natural Science Foundation of China(Grant No.51101135)
The diffusion behaviours of hydrogen (H), deuterium (D), and tritium (T) from W(110) surface into bulk and in bulk W are investigated using first-principles calculations combined with simplified models. The di...
Project supported by the National Natural Science Foundation of China (Grant No. 51101135)
Employing the ab initio total energy method based on the density functional theory with the generalized gradient approximation, we have systematically investigated the theoretical mechanical properties of copper (Cu...
Project supported by the National Natural Science Foundation of China(Grant Nos.50871009 and 51101135);the National Magnetic Confinement Fusion Program,China(Grant No.2009GB106003)
We investigate the stability, diffusion, and impurity concentration of nitrogen in intrinsic tungsten single crystal employing a first-principles method, and find that a single nitrogen atom is energetically favourabl...