FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2152478370> ?p ?o ?g. }

• W2152478370 endingPage "S1068" @default.
• W2152478370 startingPage "S1051" @default.
• W2152478370 abstract "We describe a combination of laboratory and simulation studies that give quantitative information on the energy landscape for glass-forming liquids. Both types of study focus on the idea of suddenly extracting the thermal energy, so that the system obtained for subsequent study has the structure, and hence potential energy, of a liquid at a much higher temperature than the normal glass temperature Tg. One type of study gives information on the energy that can be trapped in experimental glasses by hyperquenching, relative to the normal glass, and on the magnitude of barriers separating basins of attraction on the landscape. Stepwise annealing studies also give information on the matter of energy heterogeneity and the question of 'nanogranularity' in liquids near Tg. The other type of study gives information on the vibrational properties of a system confined to a given basin, and particularly on how that vibrational structure changes with the state of configurational excitation of the liquid. A feature in the low frequency ('boson peak') region of the density of vibrational states of the normal glass becomes much stronger in the hyperquenched glass. Qualitatively similar observations are made on heating fragile glass-formers into the supercooled and stable liquid states. The vibrational dynamics findings are supported and elucidated by constant pressure molecular dynamics/normal mode MD/NM simulations/analysis of the densities of states of different inherent structures of a model fragile liquid (orthoterphenyl (OTP) in the Lewis–Wahnstrom approximation). These show that, when the temperature is raised at constant pressure, the total density of states changes in a manner that can be well represented by a two-Gaussian 'excitation across the centroid', leaving a third and major Gaussian component unchanging. The low frequency Gaussian component, which grows with increasing temperature, has a constant peak frequency of 18 cm−1 and is identified with the Boson peak. It is suggested that the latter can serve as a signature for configurational excitations of the ideal glass structure, i.e. the topologically diverse defects of the glassy solid state. The excess vibrational heat capacity associated with this generation of low frequency modes with structural excitation is shown to be responsible for about 60% of the jump in heat capacity at Tg, most of the remainder coming from configurational excitation." @default.
• W2152478370 created "2016-06-24" @default.
• W2152478370 creator A5019881360 @default.
• W2152478370 creator A5036309567 @default.
• W2152478370 creator A5042682435 @default.
• W2152478370 creator A5073435344 @default.
• W2152478370 creator A5077833846 @default.
• W2152478370 creator A5084613321 @default.
• W2152478370 date "2003-03-10" @default.
• W2152478370 modified "2023-10-17" @default.
• W2152478370 title "Potential energy, relaxation, vibrational dynamics and the boson peak, of hyperquenched glasses" @default.
• W2152478370 cites W1627195251 @default.
• W2152478370 cites W1630008204 @default.
• W2152478370 cites W1836860166 @default.
• W2152478370 cites W1965366067 @default.
• W2152478370 cites W1970140096 @default.
• W2152478370 cites W1971318238 @default.
• W2152478370 cites W1971399365 @default.
• W2152478370 cites W1976227579 @default.
• W2152478370 cites W1978904044 @default.
• W2152478370 cites W1979295543 @default.
• W2152478370 cites W1979749040 @default.
• W2152478370 cites W1980124694 @default.
• W2152478370 cites W1982168072 @default.
• W2152478370 cites W1983998946 @default.
• W2152478370 cites W1985048314 @default.
• W2152478370 cites W1986804302 @default.
• W2152478370 cites W1992137085 @default.
• W2152478370 cites W1993826366 @default.
• W2152478370 cites W1994912930 @default.
• W2152478370 cites W1997676547 @default.
• W2152478370 cites W1997881715 @default.
• W2152478370 cites W2001212768 @default.
• W2152478370 cites W2001801898 @default.
• W2152478370 cites W2001842036 @default.
• W2152478370 cites W2005098777 @default.
• W2152478370 cites W2007712882 @default.
• W2152478370 cites W2008937980 @default.
• W2152478370 cites W2012026127 @default.
• W2152478370 cites W2012917789 @default.
• W2152478370 cites W2016770336 @default.
• W2152478370 cites W2018530992 @default.
• W2152478370 cites W2025053789 @default.
• W2152478370 cites W2026909522 @default.
• W2152478370 cites W2031017374 @default.
• W2152478370 cites W2033209219 @default.
• W2152478370 cites W2036870616 @default.
• W2152478370 cites W2041932608 @default.
• W2152478370 cites W2044615495 @default.
• W2152478370 cites W2045958508 @default.
• W2152478370 cites W2047231303 @default.
• W2152478370 cites W2056992931 @default.
• W2152478370 cites W2060475636 @default.
• W2152478370 cites W2061529429 @default.
• W2152478370 cites W2062751420 @default.
• W2152478370 cites W2064682636 @default.
• W2152478370 cites W2066314275 @default.
• W2152478370 cites W2067679064 @default.
• W2152478370 cites W2068873743 @default.
• W2152478370 cites W2077203165 @default.
• W2152478370 cites W2080911709 @default.
• W2152478370 cites W2082151051 @default.
• W2152478370 cites W2093587526 @default.
• W2152478370 cites W2106681266 @default.
• W2152478370 cites W2138103254 @default.
• W2152478370 cites W2167014913 @default.
• W2152478370 cites W2170797104 @default.
• W2152478370 cites W2325445390 @default.
• W2152478370 cites W2995067424 @default.
• W2152478370 cites W3103368869 @default.
• W2152478370 cites W3103448321 @default.
• W2152478370 doi "https://doi.org/10.1088/0953-8984/15/11/327" @default.
• W2152478370 hasPublicationYear "2003" @default.
• W2152478370 type Work @default.
• W2152478370 sameAs 2152478370 @default.
• W2152478370 citedByCount "119" @default.
• W2152478370 countsByYear W21524783702012 @default.
• W2152478370 countsByYear W21524783702013 @default.
• W2152478370 countsByYear W21524783702014 @default.
• W2152478370 countsByYear W21524783702015 @default.
• W2152478370 countsByYear W21524783702016 @default.
• W2152478370 countsByYear W21524783702017 @default.
• W2152478370 countsByYear W21524783702018 @default.
• W2152478370 countsByYear W21524783702019 @default.
• W2152478370 countsByYear W21524783702020 @default.
• W2152478370 countsByYear W21524783702021 @default.
• W2152478370 countsByYear W21524783702022 @default.
• W2152478370 crossrefType "journal-article" @default.
• W2152478370 hasAuthorship W2152478370A5019881360 @default.
• W2152478370 hasAuthorship W2152478370A5036309567 @default.
• W2152478370 hasAuthorship W2152478370A5042682435 @default.
• W2152478370 hasAuthorship W2152478370A5073435344 @default.
• W2152478370 hasAuthorship W2152478370A5077833846 @default.
• W2152478370 hasAuthorship W2152478370A5084613321 @default.
• W2152478370 hasConcept C112964491 @default.
• W2152478370 hasConcept C119621388 @default.
• W2152478370 hasConcept C120665830 @default.
• W2152478370 hasConcept C121332964 @default.

• next