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

Using the Lindemann criterion, we analyzed the quantum and thermal melting ofelectronic/excitonic crystals recently discovered in two-dimensional (2D)semiconductor moir\'e patterns. We show that the finite 2D screening of theatomically thin material can suppress (enhance) the inter-site Coulomb(dipolar) interaction strength, thus inhibits (facilitates) the formation ofthe electronic (excitonic) crystal. Meanwhile, a strong enough moir\'econfinement is found to be essential for realizing the crystal phase with awavelength near 10 nm or shorter. From the calculated Lindemann ratio whichquantifies the fluctuation of the site displacement, we estimate that thecrystal will melt into a liquid above a critical temperature ranging fromseveral tens Kelvin to above 100 K (depending on the system parameters).

Melting of electronic and excitonic crystals in 2D semiconductor moir\'e patterns: a perspective from the Lindemann criterion