{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1361137046419203072.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1126/science.273.5272.218"}},{"identifier":{"@type":"URI","@value":"https://www.science.org/doi/pdf/10.1126/science.273.5272.218"}}],"dc:title":[{"@value":"Compression of Ice to 210 Gigapascals: Infrared Evidence for a Symmetric Hydrogen-Bonded Phase"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>\n            Protonated and deuterated ices (H\n            <jats:sub>2</jats:sub>\n            O and D\n            <jats:sub>2</jats:sub>\n            O) compressed to a maximum pressure of 210 gigapascals at 85 to 300 kelvin exhibit a phase transition at 60 gigapascals in H\n            <jats:sub>2</jats:sub>\n            O ice (70 gigapascals in D\n            <jats:sub>2</jats:sub>\n            O ice) on the basis of their infrared reflectance spectra determined with synchrotron radiation. The transition is characterized by soft-mode behavior of the\n            <jats:italic>ν</jats:italic>\n            <jats:sub>3</jats:sub>\n            O-H or O-D stretch below the transition, followed by a hardening (positive pressure shift) above it. This behavior is interpreted as the transformation of ice phase VII to a structure with symmetric hydrogen bonds. The spectroscopic features of the phase persisted to the maximum pressures (210 gigapascals) of the measurements, although changes in vibrational mode coupling were observed at 150 to 160 gigapascals.\n          </jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380004231198553741","@type":"Researcher","foaf:name":[{"@value":"A. F. Goncharov"}],"jpcoar:affiliationName":[{"@value":"Geophysical Laboratory and Center for High Pressure Research, Carnegie Institution of Washington, 5251 Broad Branch Road, NW, Washington, DC 20015, USA."}]},{"@id":"https://cir.nii.ac.jp/crid/1381137046419203072","@type":"Researcher","foaf:name":[{"@value":"V. V. Struzhkin"}],"jpcoar:affiliationName":[{"@value":"Geophysical Laboratory and Center for High Pressure Research, Carnegie Institution of Washington, 5251 Broad Branch Road, NW, Washington, DC 20015, USA."}]},{"@id":"https://cir.nii.ac.jp/crid/1381137046419203075","@type":"Researcher","foaf:name":[{"@value":"M. S. Somayazulu"}],"jpcoar:affiliationName":[{"@value":"Geophysical Laboratory and Center for High Pressure Research, Carnegie Institution of Washington, 5251 Broad Branch Road, NW, Washington, DC 20015, USA."}]},{"@id":"https://cir.nii.ac.jp/crid/1381137046419203073","@type":"Researcher","foaf:name":[{"@value":"R. J. Hemley"}],"jpcoar:affiliationName":[{"@value":"Geophysical Laboratory and Center for High Pressure Research, Carnegie Institution of Washington, 5251 Broad Branch Road, NW, Washington, DC 20015, USA."}]},{"@id":"https://cir.nii.ac.jp/crid/1381137046419203076","@type":"Researcher","foaf:name":[{"@value":"H. K. Mao"}],"jpcoar:affiliationName":[{"@value":"Geophysical Laboratory and Center for High Pressure Research, Carnegie Institution of Washington, 5251 Broad Branch Road, NW, Washington, DC 20015, USA."}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00368075"},{"@type":"EISSN","@value":"10959203"},{"@type":"PISSN","@value":"http://id.crossref.org/issn/00368075"}],"prism:publicationName":[{"@value":"Science"}],"dc:publisher":[{"@value":"American Association for the Advancement of Science (AAAS)"}],"prism:publicationDate":"1996-07-12","prism:volume":"273","prism:number":"5272","prism:startingPage":"218","prism:endingPage":"220"},"reviewed":"false","url":[{"@id":"https://www.science.org/doi/pdf/10.1126/science.273.5272.218"}],"createdAt":"2006-10-27","modifiedAt":"2024-01-13","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360003449891077504","@type":"Article","resourceType":"学術雑誌論文(journal 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