48 citations · 93 across the 7 of their papers we have counts for
7 papers
Interband optical conductivities in two-dimensional tilted Dirac bands revisited within the tight-binding model
Chao-Yang Tan, Jian-Tong Hou, Xin Chen +6
Within the framework of linear response theory, we theoretically investigated the interband longitudinal optical conductivities (LOCs) in two-dimensional (2D) tilted Dirac bands us…
Interband optical conductivity in two-dimensional semi-Dirac bands tilting along the quadratic dispersion
Xin Chen, Jian-Tong Hou, Long Liang +4
Two-dimensional (2D) semi-Dirac materials feature a unique anisotropic band structure characterized by quadratic dispersion along one spatial direction and linear dispersion along…
Highly anisotropic optical conductivities in two-dimensional tilted semi-Dirac bands
Chang-Xu Yan, Chao-Yang Tan, Hong Guo +1
Within linear response theory, the absorptive part of highly anisotropic optical conductivities are analytically calculated for distinct tilts in two-dimensional (2D) tilted semi-D…
Anomalous acoustic plasmons in two-dimensional over-tilted Dirac bands
Chang-Xu Yan, Furu Zhang, Chao-Yang Tan +3
The over-tilting of Dirac cones has led to various fascinating quantum phenomena. Here we find that two anomalous acoustic plasmons (AAPs) are dictated by the distinct geometry of…
Effects of spatial dimensionality and band tilting on the longitudinal optical conductivities in Dirac bands
Jian-Tong Hou, Chang-Xu Yan, Chao-Yang Tan +4
We report a unified theory based on linear response, for analyzing the longitudinal optical conductivity (LOC) of materials with tilted Dirac cones. Depending on the tilt parameter…
Signatures of Lifshitz transition in the optical conductivity of two-dimensional tilted Dirac materials
Chao-Yang Tan, Jian-Tong Hou, Chang-Xu Yan +2
Lifshitz transition is a kind of topological phase transition in which the Fermi surface is reconstructed. It can occur in the two-dimensional (2D) tilted Dirac materials when the…
Anisotropic longitudinal optical conductivities of tilted Dirac bands in 1T-MoS
Chao-Yang Tan, Chang-Xu Yan, Yong-Hong Zhao +2
1T-MoS exhibits valley-spin-polarized tilted Dirac bands in the presence of external vertical electric field and undergoes a topological phase transition between the t…