Seongphill Moon

TL;DR: In this article, a nodal-line semimetal compound, ZrSiSe, was investigated for correlation effects in a combination of optical spectroscopy and density functional theory calculations.

TL;DR: 2D, 1D, 2D and even 3D massless particles can be observed in topological phase transitions driven by intrinsic (quantum well thickness, Cd content) and external (magnetic field, temperature or pressure) physical parameters.

TL;DR: In this paper, the authors reported infrared magnetospectroscopy studies on thin crystals of an emerging Dirac material near the intrinsic limit, where the observed structure of the Landau-level transitions and zero-field infrared absorption indicate a two-dimensional Dirac-like electronic structure, similar to that in graphene but with a small relativistic mass corresponding to a 9.4-meV energy gap.

TL;DR: This work demonstrates facile formation of wide quantum wells in few-layer black phosphorus devices that host double layers of charge carriers and opens the door for using 2D semiconductors as ambipolar single, double, or wide QWs with unusual properties, such as high anisotropy.

TL;DR: It is demonstrated that the coupling between Weyl points can significantly modify the electronic structure of a WSM and provide a new twist to the protected states, suggesting that the coupled Weyl Points should be considered as the basis for analysis of realistic WSMs.