By Prof. Ernst-Joachim Donth (auth.)
ISBN-10: 3642075193
ISBN-13: 9783642075193
ISBN-10: 3662043653
ISBN-13: 9783662043653
This is the 1st ebook devoted to the glass transition given that this idea turned famous as a different and self sufficient box of research. The glass transition is a synonym for rest and dynamics in complicated disordered structures, particularly in drinks. It embraces time-scales starting from picoseconds to years. The publication describes and interrelates the next procedures: cooperative alpha procedures in a chilly liquid, structural rest within the glass close to Tg, the Johari-Goldstein beta strategy, the Williams-Götze procedure in a hot liquid, quickly nonactivated cage damn and boson top, and ultraslow Fischer modes. via describing the salient evidence, explaining and discussing the basics, the writer makes an attempt to introduce a unifying inspiration for the complete fabric. The formulation, diagrams and references are conscientiously chosen to demonstrate the most present principles concerning the glass transition.
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Extra resources for The Glass Transition: Relaxation Dynamics in Liquids and Disordered Materials
Example text
Irrespectively of the continuity of the 10gTJ-(I/T) graph and its first derivative (Fig. 1c) [4,78-81]. 1 The Classical Picture . No Serious Problems 15 VFT regions with different parameters at low temperatures. The underlying fluctuations or relaxations of the former will be called A process, or 'molecular transient', and of the latter two 'high-temperature a process' and 'cooperative a process', respectively. , the Vogel temperatures are not monotonic with temperature (lower part of Fig . 1c).
No Serious Problems 17 there is no response, no internal equilibrium, and no 'quasist atic' change of thermodynamic variables without the relevant thermal fluctuations. The fluctuation-dissipation theorem (FDT) of statistical physics implies the important statement that it is exclusively thermal fluctuations which determine the linear response. This statement is not trivial with respect to two points. • Any linear response experiment uses an external disturbance and is therefore, irrespective of the smallness of its amplitude, connected with entropy production.
No Serious Problems 17 there is no response, no internal equilibrium, and no 'quasist atic' change of thermodynamic variables without the relevant thermal fluctuations. The fluctuation-dissipation theorem (FDT) of statistical physics implies the important statement that it is exclusively thermal fluctuations which determine the linear response. This statement is not trivial with respect to two points. • Any linear response experiment uses an external disturbance and is therefore, irrespective of the smallness of its amplitude, connected with entropy production.
The Glass Transition: Relaxation Dynamics in Liquids and Disordered Materials by Prof. Ernst-Joachim Donth (auth.)
by David
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