Looking at glasses through neutrons

Speaker:  Marco Zanatta - Raman Micro-spectroscopy Laboratory - Dipartimento di Informatica, Università di Verona
  Wednesday, November 2, 2016 at 2:30 PM DATA NUOVA - rinfresco 14.15, inizio seminario 14.30.
Glasses are ubiquitous in everyday life, and we usually consider them as well-known materials. Conversely, from a scientific point of view, the situation is dramatically different. The glassy state can be seen as an intermediate state that couples a liquid-like disordered structure with a crystal-like atomic dynamics. However, the mechanism itself of the glass formation, the glass transition, and many properties of the glassy state represent open and debated topics, whose relevance is more general. Indeed, the same phenomenology is common to polymers, gels, colloids, and biological materials like proteins and DNA.
In this seminar I will present my research activity, focusing on three relevant aspects of the physics of glasses: stability and crystallization, glass structure and local ordering, and vibrational dynamics. The experimental approach to these topics involves the study of structure and dynamics at different length- and timescale, and therefore a large arsenal of techniques. In particular, I will dwell on neutrons, a powerful and versatile probe that allows studying both the atomic structure and dynamics in glasses and, of course, in many other systems.

Referente: Gino Mariotto

Place
Ca' Vignal 3 - Piramide, Floor 0, Hall Verde

Contact person

Publication date
October 25, 2016

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