832 citations · 2.3k across the 20 of their papers we have counts for
5 papers · 1 filter
Double Dirac Semimetals in Three Dimensions
Benjamin J. Wieder, Youngkuk Kim, A. M. Rappe +1
We study a class of Dirac semimetals that feature an eightfold-degenerate double Dirac point. We show that 7 of the 230 space groups can host such Dirac points and argue that they…
Substantial optical dielectric enhancement by volume compression in LiAsSe
Fan Zheng, John A. Brehm, Steve M. Young +2
Based on first-principles calculations, we predict a substantial increase in the optical dielectric function of LiAsSe under pressure. We find that the optical dielectric const…
Strain Induced Ferroelectric Topological Insulator
Shi Liu, Youngkuk Kim, Liang Z. Tan +1
The simultaneous presence of seemingly incompatible properties of solids often provides a unique opportunity to address questions of fundamental and practical importance. The coexi…
Dirac Line Nodes in Inversion Symmetric Crystals
Youngkuk Kim, Benjamin J. Wieder, C. L. Kane +1
We propose and characterize a new class of topological semimetals with a vanishing spin--orbit interaction. The proposed topological semimetals are characterized by…
Layered Topological Crystalline Insulators
Youngkuk Kim, C. L. Kane, E. J. Mele +1
Topological crystalline insulators (TCIs) are insulating materials whose topological property relies on generic crystalline symmetries. Based on first-principles calculations, we s…