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

Fossil amber offers the unique opportunity of investigating an amorphousmaterial which has been exploring its energy landscape for more than 110 Myearsof natural aging. By applying different x-ray scattering methods to amberbefore and after annealing the sample to erase its thermal history, we identifya link between the potential energy landscape and the structural andvibrational properties of glasses. We find that hyperaging induces a depletionof the vibrational density of states in the THz region, also ruling the sounddispersion and attenuation properties of the corresponding acoustic waves.Critically, this is accompanied by a densification with structural implicationsdifferent in nature from that caused by hydrostatic compression. Our results,rationalized within the framework of fluctuating elasticity theory, reveal howupon approaching the bottom of the potential energy landscape (9% decrease inthe fictive temperature $T_f$) the elastic matrix becomes increasingly lessdisordered (6%) and longer-range correlated (22%).

Tracking the connection between disorder and energy landscape in glasses using geologically hyperaged amber