Constructing a Large Variety of Dirac-Cone Materials in the Bi${}_{1-x}$Sb${}_{x}$ Thin Film System

TL;DR

This paper theoretically demonstrates how to create diverse Dirac-cone materials in Bi${}_{1-x}$Sb${}_{x}$ thin films, enabling new possibilities in electronic and quantum device applications.

Contribution

It introduces a method to construct single-, bi-, and tri-Dirac-cone materials with tunable anisotropy in Bi${}_{1-x}$Sb${}_{x}$ thin films, expanding the material design landscape.

Findings

Multiple types of Dirac cones can be engineered in the system.

The Dirac cones exhibit various degrees of wave vector anisotropy.

Potential applications in electronic devices and quantum electrodynamics are identified.

Abstract

We theoretically predict that a large variety of Dirac-cone materials can be constructed in Bi${}_{1-x}$Sb${}_{x}$ thin films, and we here show how to construct single-, bi- and tri- Dirac-cone materials with various amounts of wave vector anisotropy. These different types of Dirac cones can be of special interest to electronic devices design, quantum electrodynamics and other fields.