Matches in SemOpenAlex for { <https://semopenalex.org/work/W2028633355> ?p ?o ?g. }
Showing items 1 to 82 of
82
with 100 items per page.
- W2028633355 endingPage "5432" @default.
- W2028633355 startingPage "5426" @default.
- W2028633355 abstract "Large single crystals of fcc La were grown in situ and were used to study the lattice dynamics of this phase of La by coherent inelastic neutron scattering. The phonon dispersion curves have been measured along the [$ensuremath{xi}00$], [$ensuremath{xi}ensuremath{xi}0$], [$ensuremath{xi}ensuremath{xi}ensuremath{xi}$], and [$0ensuremath{xi}1$] symmetry directions at 660 and 1100 K. The $T[ensuremath{xi}ensuremath{xi}ensuremath{xi}]$ branch exhibits anomalous dispersion for $ensuremath{xi}>0.25$ and, in addition, close to the zone boundary, the phonon frequencies of this branch decrease with decreasing temperature. This soft-mode behavior may be related to the $ensuremath{beta}ensuremath{rightarrow}ensuremath{alpha}$ transformation in La, an assumption supported by recent band-theoretical calculations of the generalized susceptibility of fcc La. At $X$ the frequencies of the $L[ensuremath{xi}00]$ branch are considerably lower than those of the corresponding branch of $ensuremath{gamma}$-Ce; a similar but not as pronounced effect is observed for the frequencies of the $L[ensuremath{xi}ensuremath{xi}ensuremath{xi}]$ branch close to the point $L$. Since the calculated generalized susceptibility of fcc La exhibits strong peaks at $X$ and $L$, these anomalies may be due to the renormalization of the phonon frequencies by virtual $fensuremath{leftrightarrow}d$ transitions to the unoccupied $4f$ level in La. The data were used to evaluate the elastic constants, the phonon density of states, and the lattice specific heat at constant pressure ${C}_{P}^{(l)}$." @default.
- W2028633355 created "2016-06-24" @default.
- W2028633355 creator A5001780107 @default.
- W2028633355 creator A5024949575 @default.
- W2028633355 creator A5071592347 @default.
- W2028633355 date "1982-11-15" @default.
- W2028633355 modified "2023-09-27" @default.
- W2028633355 title "Phonon dispersion curves of fcc La" @default.
- W2028633355 cites W1496057867 @default.
- W2028633355 cites W1967294751 @default.
- W2028633355 cites W1982014684 @default.
- W2028633355 cites W1989074833 @default.
- W2028633355 cites W1997139585 @default.
- W2028633355 cites W2003857437 @default.
- W2028633355 cites W2005094419 @default.
- W2028633355 cites W2018752075 @default.
- W2028633355 cites W2019044103 @default.
- W2028633355 cites W2025787875 @default.
- W2028633355 cites W2051367091 @default.
- W2028633355 cites W2057680527 @default.
- W2028633355 cites W2066217671 @default.
- W2028633355 cites W2076372200 @default.
- W2028633355 cites W2076377226 @default.
- W2028633355 cites W2080108474 @default.
- W2028633355 cites W2084359033 @default.
- W2028633355 cites W2115692589 @default.
- W2028633355 cites W2137180773 @default.
- W2028633355 cites W4253121421 @default.
- W2028633355 doi "https://doi.org/10.1103/physrevb.26.5426" @default.
- W2028633355 hasPublicationYear "1982" @default.
- W2028633355 type Work @default.
- W2028633355 sameAs 2028633355 @default.
- W2028633355 citedByCount "50" @default.
- W2028633355 countsByYear W20286333552012 @default.
- W2028633355 countsByYear W20286333552013 @default.
- W2028633355 countsByYear W20286333552015 @default.
- W2028633355 countsByYear W20286333552017 @default.
- W2028633355 crossrefType "journal-article" @default.
- W2028633355 hasAuthorship W2028633355A5001780107 @default.
- W2028633355 hasAuthorship W2028633355A5024949575 @default.
- W2028633355 hasAuthorship W2028633355A5071592347 @default.
- W2028633355 hasConcept C121332964 @default.
- W2028633355 hasConcept C142199849 @default.
- W2028633355 hasConcept C191486275 @default.
- W2028633355 hasConcept C202579712 @default.
- W2028633355 hasConcept C24169881 @default.
- W2028633355 hasConcept C24890656 @default.
- W2028633355 hasConcept C26873012 @default.
- W2028633355 hasConcept C2781204021 @default.
- W2028633355 hasConcept C31198834 @default.
- W2028633355 hasConcept C62520636 @default.
- W2028633355 hasConceptScore W2028633355C121332964 @default.
- W2028633355 hasConceptScore W2028633355C142199849 @default.
- W2028633355 hasConceptScore W2028633355C191486275 @default.
- W2028633355 hasConceptScore W2028633355C202579712 @default.
- W2028633355 hasConceptScore W2028633355C24169881 @default.
- W2028633355 hasConceptScore W2028633355C24890656 @default.
- W2028633355 hasConceptScore W2028633355C26873012 @default.
- W2028633355 hasConceptScore W2028633355C2781204021 @default.
- W2028633355 hasConceptScore W2028633355C31198834 @default.
- W2028633355 hasConceptScore W2028633355C62520636 @default.
- W2028633355 hasIssue "10" @default.
- W2028633355 hasLocation W20286333551 @default.
- W2028633355 hasOpenAccess W2028633355 @default.
- W2028633355 hasPrimaryLocation W20286333551 @default.
- W2028633355 hasRelatedWork W1977302662 @default.
- W2028633355 hasRelatedWork W1997771804 @default.
- W2028633355 hasRelatedWork W2012263728 @default.
- W2028633355 hasRelatedWork W2020335217 @default.
- W2028633355 hasRelatedWork W2046039449 @default.
- W2028633355 hasRelatedWork W2081663265 @default.
- W2028633355 hasRelatedWork W2087708350 @default.
- W2028633355 hasRelatedWork W2090973583 @default.
- W2028633355 hasRelatedWork W2603307528 @default.
- W2028633355 hasRelatedWork W4367298901 @default.
- W2028633355 hasVolume "26" @default.
- W2028633355 isParatext "false" @default.
- W2028633355 isRetracted "false" @default.
- W2028633355 magId "2028633355" @default.
- W2028633355 workType "article" @default.