Theory of competing excitonic orders in insulating <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">WTe</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math> monolayers

Abstract

The excitonic insulator is a long-sought-after phase of matter whose experimental detection has only seen substantial progress in the past decade. Here, the authors investigate theoretically a recent proposal that monolayer WTe${}_{2}$ realizes such a state, and show that the rich orbital, spin, and valley structure inherent to this material can stabilize distinct excitonic phases with different observable signatures.

Topics & Concepts