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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Any of two or more two-dimensional (2D) materials with similar properties canbe alloyed into a new layered material, namely, 2D alloy. Individual monolayerin 2D alloys are kept together by Van der Waals interactions. The property ofmultilayer alloys is a function of their layer number. Here, we studied theshear (C) and layer-breathing (LB) modes of Mo$_{0.5}$W$_{0.5}$S$_2$ alloyflakes and their link to the layer number of alloy flakes. The study revealsthat the disorder effect is absent in the C and LB modes of 2D alloys, and themonatomic chain model can be used to estimate the frequencies of the C and LBmodes. We demonstrated how to use the C and LB mode frequency to identify thelayer number of alloy flakes deposited on different substrates. This techniqueis independent of the substrate, stoichiometry, monolayer thickness and complexrefractive index of 2D materials, offering a robust and substrate-free approachfor layer-number identification of 2D materials.

Substrate-free layer-number identification of two-dimensional materials: A case of Mo$_{0.5}$W$_{0.5}$S$_2$ alloy