High-pressure studies of optical dephasing in polymer glasses
Article Abstract:
The effect of high pressure on the optical dephasing of chromophores in organic polymers is evaluated within the stochastic sudden jump two-level system (TLS) model. The modeling was able to account for the observed pressure-induced changes in the slope of the apparent power low temperature dependence even assuming a flat TLS distribution for all pressures.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Electrical relaxation of bismuth germanate silicate glasses
Article Abstract:
The frequency-dependent electrical data of the bismuth germanate silicate (BGSO) glasses are discussed in the framework of the electric modulus representation and the power-law conductivity. The proper relation between the exponent of the power-law conductivity and the stretched exponential of the modulus representation is shown.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Infrared absoption studies of n-heptane under high pressure
Article Abstract:
Mid-infrared spectra of neat n-heptane at room temperature is presented over a pressure range. Results are discussed in terms of liquid-solid phase transition and changes of molecular conformers.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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