FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2917980909> ?p ?o ?g. }

• W2917980909 abstract "The highest critical temperature of superconductivity Tc has been achieved in cuprates: 133 K at ambient pressure and 164 K at high pressures. As the nature of superconductivity in these materials is still not disclosed, the prospects for a higher Tc are not clear. In contrast the Bardeen-Cooper-Schrieffer (BCS) theory gives a clear guide for achieving high Tc: it should be a favorable combination of high frequency phonons, strong coupling between electrons and phonons, and high density of states. These conditions can be fulfilled for metallic hydrogen and covalent hydrogen dominant compounds. Numerous followed calculations supported this idea and predicted Tc=100-235 K for many hydrides but only moderate Tc~17 K has been observed experimentally. Here we found that sulfur hydride transforms at P~90 GPa to metal and superconductor with Tc increasing with pressure to 150 K at ~200 GPa. This is in general agreement with recent calculations of Tc~80 K for H2S. Moreover we found superconductivity with Tc~190 K in a H2S sample pressurized to P>150 GPa at T>220 K. This superconductivity likely associates with the dissociation of H2S, and formation of SHn (n>2) hydrides. We proved occurrence of superconductivity by the drop of the resistivity at least 50 times lower than the copper resistivity, the decrease of Tc with magnetic field, and the strong isotope shift of Tc in D2S which evidences a major role of phonons in the superconductivity. H2S is a substance with a moderate content of hydrogen therefore high Tc can be expected in a wide range of hydrogen-contain materials. Hydrogen atoms seem to be essential to provide the high frequency modes in the phonon spectrum and the strong electron-phonon coupling." @default.
• W2917980909 created "2019-03-02" @default.
• W2917980909 creator A5024418344 @default.
• W2917980909 creator A5053017063 @default.
• W2917980909 creator A5053628215 @default.
• W2917980909 date "2014-12-01" @default.
• W2917980909 modified "2023-09-27" @default.
• W2917980909 title "Conventional superconductivity at 190 K at high pressures" @default.
• W2917980909 cites W130316555 @default.
• W2917980909 cites W1485300768 @default.
• W2917980909 cites W1592548554 @default.
• W2917980909 cites W1963957450 @default.
• W2917980909 cites W1967366538 @default.
• W2917980909 cites W1980215609 @default.
• W2917980909 cites W1981853527 @default.
• W2917980909 cites W1985871998 @default.
• W2917980909 cites W1988192838 @default.
• W2917980909 cites W1991019920 @default.
• W2917980909 cites W1991047403 @default.
• W2917980909 cites W1996331882 @default.
• W2917980909 cites W1996765737 @default.
• W2917980909 cites W2000281374 @default.
• W2917980909 cites W2001073682 @default.
• W2917980909 cites W2005103045 @default.
• W2917980909 cites W2031888695 @default.
• W2917980909 cites W2065467771 @default.
• W2917980909 cites W2070873799 @default.
• W2917980909 cites W2080023163 @default.
• W2917980909 cites W2081640411 @default.
• W2917980909 cites W2086310108 @default.
• W2917980909 cites W2088610216 @default.
• W2917980909 cites W2124820885 @default.
• W2917980909 cites W2139062161 @default.
• W2917980909 cites W2499947522 @default.
• W2917980909 cites W2952647831 @default.
• W2917980909 cites W1770506438 @default.
• W2917980909 cites W2059860226 @default.
• W2917980909 cites W2288549796 @default.
• W2917980909 hasPublicationYear "2014" @default.
• W2917980909 type Work @default.
• W2917980909 sameAs 2917980909 @default.
• W2917980909 citedByCount "9" @default.
• W2917980909 countsByYear W29179809092015 @default.
• W2917980909 countsByYear W29179809092016 @default.
• W2917980909 countsByYear W29179809092020 @default.
• W2917980909 crossrefType "posted-content" @default.
• W2917980909 hasAuthorship W2917980909A5024418344 @default.
• W2917980909 hasAuthorship W2917980909A5053017063 @default.
• W2917980909 hasAuthorship W2917980909A5053628215 @default.
• W2917980909 hasConcept C109613756 @default.
• W2917980909 hasConcept C121282732 @default.
• W2917980909 hasConcept C121332964 @default.
• W2917980909 hasConcept C130893637 @default.
• W2917980909 hasConcept C14103023 @default.
• W2917980909 hasConcept C178790620 @default.
• W2917980909 hasConcept C185592680 @default.
• W2917980909 hasConcept C191897082 @default.
• W2917980909 hasConcept C192562407 @default.
• W2917980909 hasConcept C24169881 @default.
• W2917980909 hasConcept C26873012 @default.
• W2917980909 hasConcept C48496998 @default.
• W2917980909 hasConcept C512968161 @default.
• W2917980909 hasConcept C54101563 @default.
• W2917980909 hasConcept C544153396 @default.
• W2917980909 hasConcept C59422586 @default.
• W2917980909 hasConcept C62520636 @default.
• W2917980909 hasConcept C69990965 @default.
• W2917980909 hasConceptScore W2917980909C109613756 @default.
• W2917980909 hasConceptScore W2917980909C121282732 @default.
• W2917980909 hasConceptScore W2917980909C121332964 @default.
• W2917980909 hasConceptScore W2917980909C130893637 @default.
• W2917980909 hasConceptScore W2917980909C14103023 @default.
• W2917980909 hasConceptScore W2917980909C178790620 @default.
• W2917980909 hasConceptScore W2917980909C185592680 @default.
• W2917980909 hasConceptScore W2917980909C191897082 @default.
• W2917980909 hasConceptScore W2917980909C192562407 @default.
• W2917980909 hasConceptScore W2917980909C24169881 @default.
• W2917980909 hasConceptScore W2917980909C26873012 @default.
• W2917980909 hasConceptScore W2917980909C48496998 @default.
• W2917980909 hasConceptScore W2917980909C512968161 @default.
• W2917980909 hasConceptScore W2917980909C54101563 @default.
• W2917980909 hasConceptScore W2917980909C544153396 @default.
• W2917980909 hasConceptScore W2917980909C59422586 @default.
• W2917980909 hasConceptScore W2917980909C62520636 @default.
• W2917980909 hasConceptScore W2917980909C69990965 @default.
• W2917980909 hasLocation W29179809091 @default.
• W2917980909 hasOpenAccess W2917980909 @default.
• W2917980909 hasPrimaryLocation W29179809091 @default.
• W2917980909 hasRelatedWork W1176864902 @default.
• W2917980909 hasRelatedWork W1485300768 @default.
• W2917980909 hasRelatedWork W1542817303 @default.
• W2917980909 hasRelatedWork W1556627450 @default.
• W2917980909 hasRelatedWork W1668507869 @default.
• W2917980909 hasRelatedWork W1760743999 @default.
• W2917980909 hasRelatedWork W1963957450 @default.
• W2917980909 hasRelatedWork W1969463549 @default.
• W2917980909 hasRelatedWork W1981368803 @default.
• W2917980909 hasRelatedWork W1996765737 @default.
• W2917980909 hasRelatedWork W1998055457 @default.
• W2917980909 hasRelatedWork W2014437371 @default.

• next