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| 001 | 454460 | ||
| 005 | 20250716152157.0 | ||
| 024 | 7 | _ | |a 10.1080/14786435.2020.1757172 |2 doi |
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| 100 | 1 | _ | |a Martinelli, Alessandro |0 P:(DE-H253)PIP1081882 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Probing the dynamics of B$_{2}$O$_{3}$ across the glass transition: an X-ray photon correlation spectroscopy study |
| 260 | _ | _ | |a Abingdon |c 2020 |b Taylor & Francis |
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| 520 | _ | _ | |a X-ray photon correlation spectroscopy is used to study the dynamics of the glass former B$_{2}$O$_{3}$ across the glass transition temperature, T$_g$. The obtained data confirm that while the structural relaxation drives the density rearrangements in the liquid phase, a beam-induced dynamics is the dominant effect around and below T$_g$. The use of a hybrid photon counting detector allows us to obtain high-quality correlation functions with a characteristic decay time down to a second. The characteristic time of the induced dynamics displays a linear dependence on the inverse of the absorbed X-ray power over the whole observed range, i.e. up to powers of 0.2 eV/atom/s. Up to these values, then, an X-ray irradiated B$_{2}$O$_{3}$ glass sample explores structurally equivalent configurations on a timescale dictated by the absorbed power. |
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| 773 | _ | _ | |a 10.1080/14786435.2020.1757172 |g Vol. 100, no. 20, p. 2636 - 2645 |0 PERI:(DE-600)2136337-7 |n 20 |p 2636 - 2645 |t The philosophical magazine |v 100 |y 2020 |x 1478-6443 |
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