Matches in SemOpenAlex for { <https://semopenalex.org/work/W1634456142> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W1634456142 abstract "Irreversible broadening of spectral holes in chlorin -doped polystyrene glass was studied for the first time in the temperature cycling experiments under high pressure (by raising the temperature from 5 K to various magnitudes up to 18 K and turning back to 5 K at several fixed pressures between 0 and 5 kbar). At all pressures the increment in the hole width observed after completing a temperature cycle exhibits a slightly superlinear ( ∝ T 3/2 ) dependence on the cycling temperature. The magnitude of this increment is essentially reduced under high pressure (e.g., at 4.9 kbar it makes up less than 2/3 of its initial value obtained at ambient pressure). The residual broadening of holes is interpreted as a result of irreversible thermally induced spectral diffusion arising from interaction of the electronic transition in a dopant molecule with two -level systems (TLSs) which perform thermally activated overbarrier jumps between two possible states of a TLS. The pressure effects are treated theoretically within the scope of the soft anharmonic potential model with asymmetric distribution of the cubic anharmonicity parameter. It is shown that more abundant are TLSs with such double-well potentials where the minimum, corresponding to a larger glass volume, is placed at a higher energy than the minimum, corresponding to a smaller volume. In this case, applied pressure reduces the number of almost symmetric TLSs (having very small energy difference between the two minima), which provide the largest contribution to the residual broadening of spectral holes after a temperature cycle. Our earlier results on isothermal hole burning at various fixed pressures [V. Hizhnyakov et al., Phys. Rev. B 62, 11296 (2000)] also qualitatively fit into this picture." @default.
- W1634456142 created "2016-06-24" @default.
- W1634456142 creator A5010371919 @default.
- W1634456142 creator A5014500752 @default.
- W1634456142 creator A5036926823 @default.
- W1634456142 creator A5047472930 @default.
- W1634456142 creator A5060743348 @default.
- W1634456142 creator A5077459281 @default.
- W1634456142 date "2004-01-19" @default.
- W1634456142 modified "2023-09-27" @default.
- W1634456142 title "Effect of hydrostatic pressure on irreversible thermal transformations in a polymer glass at low temperatures" @default.
- W1634456142 cites W1499759633 @default.
- W1634456142 cites W566020080 @default.
- W1634456142 cites W625233545 @default.
- W1634456142 hasPublicationYear "2004" @default.
- W1634456142 type Work @default.
- W1634456142 sameAs 1634456142 @default.
- W1634456142 citedByCount "0" @default.
- W1634456142 crossrefType "posted-content" @default.
- W1634456142 hasAuthorship W1634456142A5010371919 @default.
- W1634456142 hasAuthorship W1634456142A5014500752 @default.
- W1634456142 hasAuthorship W1634456142A5036926823 @default.
- W1634456142 hasAuthorship W1634456142A5047472930 @default.
- W1634456142 hasAuthorship W1634456142A5060743348 @default.
- W1634456142 hasAuthorship W1634456142A5077459281 @default.
- W1634456142 hasConcept C121332964 @default.
- W1634456142 hasConcept C122865956 @default.
- W1634456142 hasConcept C147724859 @default.
- W1634456142 hasConcept C159985019 @default.
- W1634456142 hasConcept C185592680 @default.
- W1634456142 hasConcept C192562407 @default.
- W1634456142 hasConcept C204530211 @default.
- W1634456142 hasConcept C20556612 @default.
- W1634456142 hasConcept C26873012 @default.
- W1634456142 hasConcept C2910081258 @default.
- W1634456142 hasConcept C47463417 @default.
- W1634456142 hasConcept C521977710 @default.
- W1634456142 hasConcept C97355855 @default.
- W1634456142 hasConceptScore W1634456142C121332964 @default.
- W1634456142 hasConceptScore W1634456142C122865956 @default.
- W1634456142 hasConceptScore W1634456142C147724859 @default.
- W1634456142 hasConceptScore W1634456142C159985019 @default.
- W1634456142 hasConceptScore W1634456142C185592680 @default.
- W1634456142 hasConceptScore W1634456142C192562407 @default.
- W1634456142 hasConceptScore W1634456142C204530211 @default.
- W1634456142 hasConceptScore W1634456142C20556612 @default.
- W1634456142 hasConceptScore W1634456142C26873012 @default.
- W1634456142 hasConceptScore W1634456142C2910081258 @default.
- W1634456142 hasConceptScore W1634456142C47463417 @default.
- W1634456142 hasConceptScore W1634456142C521977710 @default.
- W1634456142 hasConceptScore W1634456142C97355855 @default.
- W1634456142 hasLocation W16344561421 @default.
- W1634456142 hasOpenAccess W1634456142 @default.
- W1634456142 hasPrimaryLocation W16344561421 @default.
- W1634456142 hasRelatedWork W1548132009 @default.
- W1634456142 hasRelatedWork W1972942954 @default.
- W1634456142 hasRelatedWork W1987601610 @default.
- W1634456142 hasRelatedWork W1989753337 @default.
- W1634456142 hasRelatedWork W1992151919 @default.
- W1634456142 hasRelatedWork W1998146598 @default.
- W1634456142 hasRelatedWork W2002783924 @default.
- W1634456142 hasRelatedWork W2023476576 @default.
- W1634456142 hasRelatedWork W2026755526 @default.
- W1634456142 hasRelatedWork W2030483079 @default.
- W1634456142 hasRelatedWork W2043156271 @default.
- W1634456142 hasRelatedWork W2046669258 @default.
- W1634456142 hasRelatedWork W2049772489 @default.
- W1634456142 hasRelatedWork W2054529272 @default.
- W1634456142 hasRelatedWork W2055805970 @default.
- W1634456142 hasRelatedWork W2058798452 @default.
- W1634456142 hasRelatedWork W2072377437 @default.
- W1634456142 hasRelatedWork W2083900359 @default.
- W1634456142 hasRelatedWork W2165312152 @default.
- W1634456142 hasRelatedWork W3106046262 @default.
- W1634456142 isParatext "false" @default.
- W1634456142 isRetracted "false" @default.
- W1634456142 magId "1634456142" @default.
- W1634456142 workType "article" @default.