1 line
9.3 KiB
Text
1 line
9.3 KiB
Text
|
{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,1,9]],"date-time":"2024-01-09T16:03:43Z","timestamp":1704816223688},"reference-count":38,"publisher":"Proceedings of the National Academy of Sciences","issue":"2","license":[{"start":{"date-parts":[[2023,1,6]],"date-time":"2023-01-06T00:00:00Z","timestamp":1672963200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["317319632‬"]}],"content-domain":{"domain":["www.pnas.org"],"crossmark-restriction":true},"short-container-title":["Proc. Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2023,1,10]]},"abstract":"<jats:p>\n High-temperature superconducting cuprates respond to doping with a dome-like dependence of their critical temperature (\n <jats:italic>T<\/jats:italic>\n <jats:sub>c<\/jats:sub>\n ). But the family-specific maximum\n <jats:italic>T<\/jats:italic>\n <jats:sub>c<\/jats:sub>\n can be surpassed by application of pressure, a compelling observation known for decades. We investigate the phenomenon with high-pressure anvil cell NMR and measure the charge content at planar Cu and O, and with it the doping of the ubiquitous CuO\n <jats:sub>2<\/jats:sub>\n plane with atomic-scale resolution. We find that pressure increases the overall hole doping, as widely assumed, but when it enhances\n <jats:italic>T<\/jats:italic>\n <jats:sub>c<\/jats:sub>\n above what can be achieved by doping, pressure leads to a hole redistribution favoring planar O. This is similar to the observation that the family-specific maximum\n <jats:italic>T<\/jats:italic>\n <jats:sub>c<\/jats:sub>\n is higher for materials where the hole content at planar O is higher at the expense of that at planar Cu. The latter reflects dependence of the maximum\n <jats:italic>T<\/jats:italic>\n <jats:sub>c<\/jats:sub>\n on the Cu\u2013O bond covalence and the charge-transfer gap. The results presented here indicate that the pressure-induced enhancement of the maximum\n <jats:italic>T<\/jats:italic>\n <jats:sub>c<\/jats:sub>\n points to the same mechanism.\n <\/jats:p>","DOI":"10.1073\/pnas.2215458120","type":"journal-article","created":{"date-parts":[[2023,1,6]],"date-time":"2023-01-06T20:46:43Z","timestamp":1673038003000},"update-policy":"http:\/\/dx.doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":1,"title":["How pressure enhances the critical temperature of superconductivity in YBa\n <sub>2<\/sub>\n Cu\n <sub>3<\/sub>\n O\n <sub>\n 6+\n <i>y<\/i>\n <\/sub>"],"prefix":"10.1073","volume":"120","author":[{"ORCID":"http:\/\/orcid.org\/0000-0002-1058-3532","authenticated-orcid":false,"given":"Michael","family":"Jurkutat","sequence":"first","affiliation":[{"name":"Felix Bloch Institute for Solid State Physics, Leipzig University 04103, Leipzig, Germany"}]},{"given":"Carsten","family":"Kattinger","sequence":"additional","affiliation":[{"name":"Felix Bloch Institute for Solid State Physics, Leipzig University 04103, Leipzig, Germany"}]},{"ORCID":"http:\/\/orcid.org\/0000-0001-5347-3002","authenticated-orcid":false,"given":"Stefan","family":"Tsankov","sequence":"additional","affiliation":[{"name":"Felix Bloch Institute for Solid State Physics, Leipzig University 04103, Leipzig, Germany"}]},{"given":"Richard","family":"Reznicek","sequence":"additional","affiliation":[{"name":"Felix Bloch Institute for Solid State Physics, Leipzig University 04103, Leipzig, Germany"}]},{"given":"Andreas","family":"Erb","sequence":"additional","affiliation":[{"name":"Walther Meissner Institut, Bayerische Akademie der Wissenschaften 85748,
|