90 citations · 265 across the 8 of their papers we have counts for
8 papers
Ultrafast carrier relaxation and its Pauli drag in photo-enhanced melting of solids
Chao Lian, S. B. Zhang, Sheng Meng
Ultrafast light-matter interaction is a powerful tool for the study of solids. Upon laser excitation, carrier multiplication and lattice acceleration beyond thermal velocity can oc…
Effect of Hartree-Fock Pseudopotential on the First-principles Electronic Structure
Hengxin Tan, Yuanchang Li, S. B. Zhang +1
Density functional theory (DFT) can run into serious difficulties with localized states in elements such as transition metals with occupied-d states and oxygen. In contrast, Hartre…
Toward the intrinsic limit of topological insulator Bi2Se3
Jixia Dai, Damien West, Xueyun Wang +5
Combining high resolution scanning tunneling microscopy and first principle calculations, we identified the major native defects, in particular the Se vacancies and Se interstitial…
evidence for nonthermal characteristics in ultrafast laser melting
Chao Lian, S. B. Zhang, Sheng Meng
Laser melting of semiconductors has been observed for almost 40 years; surprisingly, it is not well understood where most theoretical simulations show a laser-induced thermal proce…
A low-surface energy carbon allotrope: the case for bcc-C6
Wen-Jin Yin, Yuan-Ping Chen, Yue-E. Xie +2
Graphite may be viewed as a low-surface-energy carbon allotrope with little layer-layer interaction. Other low-surface-energy allotropes but with much stronger layer-layer interact…
Carrier Multiplication-Induced Structural Change during Ultrafast Carrier Relaxation and Non-Thermal Phase Transition in Semiconductors
Junhyeok Bang, Y. Y. Sun, X. -Q. Liu +2
While being extensively studied as an important physical process to alter exciton population in nanostructures at fs time scale, carrier multiplication has not been considered seri…
Theory of the Dirac Half Metal and Quantum Anomalous Hall Effect in Mn Intercalated Epitaxial Graphene
Yuanchang Li, Damien West, Huaqing Huang +3
The prospect of a Dirac half metal, a material which is characterized by a bandstructure with a gap in one spin channel but a Dirac cone in the other, is of both fundamental intere…
Activated dissociation of O2 on Pb(111) surfaces by Pb adatoms
Yu Yang, Jia Li, Zhirong Liu +8
We investigate the dissociation of O2 on Pb(111) surface using first-principles calculations. It is found that in a practical high-vacuum environment, the adsorption of molecular O…