Matches in SemOpenAlex for { <https://semopenalex.org/work/W2053574620> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W2053574620 endingPage "371" @default.
- W2053574620 startingPage "367" @default.
- W2053574620 abstract "We report polarized Raman measurements on single crystals of YBa2Cu3Ox, Y123-Ox, as a function of oxygen content. For x=7 the usual five, c-axis polarized modes are observed; mode #5 occurs ∼500 cm−1 and is due to the oxygen atoms in the four-coordinated Cu chain. At oxygen contents near the metal-insulator (M-l) phase transition the intensity of mode #5 rapidly decreases and disappears, being replaced by a strongly (zz) polarized mode at ≈600 cm−1. Our results are in sharp disagreement with published Raman results on ceramics. We believe the 600 cm−1 mode is due to oxygen atom vibration in the two-fold coordinated Cu “sticks”. At the oxygen content near the M-l phase transition, other lower energy modes appear but they disappear for oxygen content x≈6 where the appropriate number (five) of symmetry allowed modes are again observed. A “drastic difference” in the phonon density of states between x=6 and x=7 has been obtained from inelastic neutron measurements. We believe that much of the difference in phonon frequencies is not due to a decrease in the force constants in going from x=6, to x=7, but is due to phonon differences resulting from the coordination changes of the chain-Cu atoms." @default.
- W2053574620 created "2016-06-24" @default.
- W2053574620 creator A5028631553 @default.
- W2053574620 creator A5034555361 @default.
- W2053574620 creator A5071059541 @default.
- W2053574620 creator A5075202035 @default.
- W2053574620 date "1991-02-01" @default.
- W2053574620 modified "2023-09-23" @default.
- W2053574620 title "Raman measurements of YBa2Cu3Ox as a function of oxygen content" @default.
- W2053574620 cites W1963989511 @default.
- W2053574620 cites W1970274254 @default.
- W2053574620 cites W1972758484 @default.
- W2053574620 cites W1979350246 @default.
- W2053574620 cites W1992835796 @default.
- W2053574620 cites W2010303849 @default.
- W2053574620 cites W2014352664 @default.
- W2053574620 cites W2023668467 @default.
- W2053574620 cites W2042394711 @default.
- W2053574620 cites W2062896933 @default.
- W2053574620 cites W2063001810 @default.
- W2053574620 cites W2064851748 @default.
- W2053574620 cites W2068128807 @default.
- W2053574620 cites W2080128103 @default.
- W2053574620 cites W2083923846 @default.
- W2053574620 cites W222848862 @default.
- W2053574620 cites W2314033501 @default.
- W2053574620 cites W2587016857 @default.
- W2053574620 doi "https://doi.org/10.1016/0038-1098(91)90752-h" @default.
- W2053574620 hasPublicationYear "1991" @default.
- W2053574620 type Work @default.
- W2053574620 sameAs 2053574620 @default.
- W2053574620 citedByCount "52" @default.
- W2053574620 countsByYear W20535746202012 @default.
- W2053574620 crossrefType "journal-article" @default.
- W2053574620 hasAuthorship W2053574620A5028631553 @default.
- W2053574620 hasAuthorship W2053574620A5034555361 @default.
- W2053574620 hasAuthorship W2053574620A5071059541 @default.
- W2053574620 hasAuthorship W2053574620A5075202035 @default.
- W2053574620 hasConcept C113196181 @default.
- W2053574620 hasConcept C120665830 @default.
- W2053574620 hasConcept C121332964 @default.
- W2053574620 hasConcept C149288129 @default.
- W2053574620 hasConcept C149635348 @default.
- W2053574620 hasConcept C178790620 @default.
- W2053574620 hasConcept C185592680 @default.
- W2053574620 hasConcept C24169881 @default.
- W2053574620 hasConcept C26873012 @default.
- W2053574620 hasConcept C40003534 @default.
- W2053574620 hasConcept C41008148 @default.
- W2053574620 hasConcept C43617362 @default.
- W2053574620 hasConcept C540031477 @default.
- W2053574620 hasConcept C58312451 @default.
- W2053574620 hasConceptScore W2053574620C113196181 @default.
- W2053574620 hasConceptScore W2053574620C120665830 @default.
- W2053574620 hasConceptScore W2053574620C121332964 @default.
- W2053574620 hasConceptScore W2053574620C149288129 @default.
- W2053574620 hasConceptScore W2053574620C149635348 @default.
- W2053574620 hasConceptScore W2053574620C178790620 @default.
- W2053574620 hasConceptScore W2053574620C185592680 @default.
- W2053574620 hasConceptScore W2053574620C24169881 @default.
- W2053574620 hasConceptScore W2053574620C26873012 @default.
- W2053574620 hasConceptScore W2053574620C40003534 @default.
- W2053574620 hasConceptScore W2053574620C41008148 @default.
- W2053574620 hasConceptScore W2053574620C43617362 @default.
- W2053574620 hasConceptScore W2053574620C540031477 @default.
- W2053574620 hasConceptScore W2053574620C58312451 @default.
- W2053574620 hasIssue "5" @default.
- W2053574620 hasLocation W20535746201 @default.
- W2053574620 hasOpenAccess W2053574620 @default.
- W2053574620 hasPrimaryLocation W20535746201 @default.
- W2053574620 hasRelatedWork W1974787390 @default.
- W2053574620 hasRelatedWork W2009426008 @default.
- W2053574620 hasRelatedWork W2010677448 @default.
- W2053574620 hasRelatedWork W2046218082 @default.
- W2053574620 hasRelatedWork W2047585756 @default.
- W2053574620 hasRelatedWork W2095142258 @default.
- W2053574620 hasRelatedWork W3003008687 @default.
- W2053574620 hasRelatedWork W3080933596 @default.
- W2053574620 hasRelatedWork W3157357455 @default.
- W2053574620 hasRelatedWork W4283770538 @default.
- W2053574620 hasVolume "77" @default.
- W2053574620 isParatext "false" @default.
- W2053574620 isRetracted "false" @default.
- W2053574620 magId "2053574620" @default.
- W2053574620 workType "article" @default.