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

Ab-initio molecular dynamics simulation of forsterite (Mg 2 SiO 4 ) melt at 2273 K shows the presence of nearly 40% of the Si atoms as (Si 2 O 7 ) 6-  dimers. This result is directly corroborated by the  29 Si nuclear magnetic resonance spectrum of bulk Mg 2 SiO 4  glass, prepared by container-less levitation techniques. The presence of a large excess of bridging O atoms associated with the (Si 2 O 7 ) 6-  dimers in forsterite glass and melt is in sharp contrast with their complete absence in crystalline forsterite. Such structural differences between the crystal and the melt can have important implications in understanding the dynamics of crystallization and segregation in a primordial magma ocean and the continuing chemical differentiation of the Earth.

Evidence for anomalously large degree of polymerization in Mg 2 SiO 4 glass and melt