{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Kono Y"],"funding":["MEXT | Japan Society for the Promotion of Science","MEXT | Japan Society for the Promotion of Science (JSPS)"],"pagination":["2292"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9051114"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["13(1)"],"pubmed_abstract":["Bimodal behavior in the translational order of silicon's second shell in SiO<sub>2</sub> liquid at high temperatures and high pressures has been recognized in theoretical studies, and the fraction of the S state with high tetrahedrality is considered as structural origin of the anomalous properties. However, it has not been well identified in experiment. Here we show experimental evidence of a bimodal behavior in the translational order of silicon's second shell in SiO<sub>2</sub> glass under pressure. SiO<sub>2</sub> glass shows tetrahedral symmetry structure with separation between the first and second shells of silicon at low pressures, which corresponds to the S state structure reported in SiO<sub>2</sub> liquid. On the other hand, at high pressures, the silicon's second shell collapse"],"journal":["Nature communications"],"pubmed_title":["Experimental evidence of tetrahedral symmetry breaking in SiO<sub>2</sub> glass under pressure."],"pmcid":["PMC9051114"],"funding_grant_id":["20H00201, 19KK0093"],"pubmed_authors":["Yamazaki H","Hayashi Y","Koyama T","Ohashi H","Yamada J","Sekizawa O","Yamada H","Goto S","Inoue I","Senba Y","Tamasaku K","Yabashi M","Ohara K","Kono Y","Yumoto H","Osaka T","Higo Y","Tange Y","Hiroi S","Noritake F","Nitta K","Kondo NM"],"additional_accession":[]},"is_claimable":false,"name":"Experimental evidence of tetrahedral symmetry breaking in SiO<sub>2</sub> glass under pressure.","description":"Bimodal behavior in the translational order of silicon's second shell in SiO<sub>2</sub> liquid at high temperatures and high pressures has been recognized in theoretical studies, and the fraction of the S state with high tetrahedrality is considered as structural origin of the anomalous properties. However, it has not been well identified in experiment. Here we show experimental evidence of a bimodal behavior in the translational order of silicon's second shell in SiO<sub>2</sub> glass under pressure. SiO<sub>2</sub> glass shows tetrahedral symmetry structure with separation between the first and second shells of silicon at low pressures, which corresponds to the S state structure reported in SiO<sub>2</sub> liquid. On the other hand, at high pressures, the silicon's second shell collapse","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Apr","modification":"2025-04-05T14:43:26.111Z","creation":"2025-04-05T14:43:26.111Z"},"accession":"S-EPMC9051114","cross_references":{"pubmed":["35484122"],"doi":["10.1038/s41467-022-30028-w"]}}