English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The discovery of topological quantum states in two-dimensional (2D) systemsis one of the most promising advancements in condensed matter physics. LinearWeyl point (LWP) phonons have been theoretically investigated in some 2Dmaterials. Especially, Jin, Wang, and Xu [Nano Lett. 2018, 18, 12, 7755-7760]proposed in 2018 that the candidates with threefold rotational symmetry at thecorners of the hexagonal Brillouin zone can host LWP phonons with a quantizedvalley Berry phase. However, all the candidates with hexagonal lattices may nothost LWP phonons at $K$ ($K'$) high-symmetry points (HSPs). Hence, a moreaccurate recipe for LWP phonons in 2D is highly required. This work provides anexhaustive list of valley LWP phonons at HSPs in 2D by searching the entire 80layer groups (LGs). We found that the valley LWP phonons can be obtained atHSPs in 11 of the 80 LGs. Guided by the symmetry analysis, we also contributedto realizing the ideal 2D material with valley LWP phonons. We identified theexistence of the valley LWP phonons in eleven 2D material candidates with 11LGs. This work offers a method to search for valley LWPs in 2D phononic systemsand proposes 2D material candidates to obtain the valley LWP phonons.

Accurate recipe for predicting valley Linear Weyl phonons in two dimensions