217 citations · 1.2k across the 35 of their papers we have counts for
9 papers · 1 filter
Two-dimensional pentagonal material Penta-PdPSe: A first-principle study
A. Bafekry, M. M. Fadlallah, M. Faraji +5
Low-symmetry Penta-PdPSe with intrinsic in-plane anisotropy synthesized successfully [(P. Li et al., Adv. Mater., 2102541, (2021)]. Motivated by this experimental discovery, we inv…
Unraveling the vector nature of generalized space-fractional Bessel beams
Aqsa Ehsan, Muhammad Qasim Mehmood, Kashif Riaz +2
We introduce an exact analytical solution of the homogeneous space-fractional Helmholtz equation in cylindrical coordinates. This solution, called vector Space-Fractional Bessel Be…
Propagation-induced limits to high harmonic generation in 3D Dirac semimetals
Jeremy Lim, Yee Sin Ang, Lay Kee Ang +1
3D Dirac semimetals (DSMs) are promising materials for terahertz high harmonic generation (HHG). We show that 3D DSMs' high nonlinearity opens up a regime of nonlinear optics where…
Absence of Space-Charge-Limited Current in Unconventional Field Emission
Cherq Chua, Chun Yun Kee, Yee Sin Ang +1
For field emission (FE), it is widely expected that its emitting current density will become space-charge-limited current (SCLC) due the built-up of charge in-transit within a…
Thermal-Field Electron Emission from Three-Dimensional Topological Semimetals
Wei Jie Chan, Yee Sin Ang, L. K. Ang
A model is constructed to describe the thermal-field emission of electrons from a three-dimensional (D) topological semimetal hosting Dirac/Weyl node(s). The traditional thermal…
Designing a Concentrated High-Efficiency Thermionic Solar Cell Enabled by Graphene Collector
Xin Zhang, Xiaohang Chen, Jinchan Chen +2
We propose a concentrated thermionic emission solar cell design, which demonstrates a high solar-to-electricity energy conversion efficiency larger than 10\% under 600 sun, by harn…