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Low-frequency excitations and their localization properties in glasses

Autor: M. Paoluzzi, L. Angelani

Publikováno v: Condensed Matter Physics, Vol 22, Iss 4, p 43608 (2019)

Besides the dynamical slowing down signaled by an enormous increase of the viscosity approaching the glass transition, structural glasses show interesting anomalous thermodynamic features at low temperatures that hint at peculiar deviations from Deby

Externí odkaz: https://doaj.org/article/7f21029926684be7911c3b96de466904

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Probing the Debye spectrum in glasses using small system sizesing the Debye spectrum in glasses using small system sizes

Autor: M. Paoluzzi, L. Angelani, G. Parisi, G. Ruocco

Publikováno v: Physical review research 2 (2020): 043248-1–043248-7. doi:10.1103/PhysRevResearch.2.043248
info:cnr-pdr/source/autori:M. Paoluzzi, L. Angelani, G. Parisi, and G. Ruocco/titolo:Probing the Debye spectrum in glasses using small system sizesing the Debye spectrum in glasses using small system sizes/doi:10.1103%2FPhysRevResearch.2.043248/rivista:Physical review research/anno:2020/pagina_da:043248-1/pagina_a:043248-7/intervallo_pagine:043248-1–043248-7/volume:2

We investigate the low-frequency spectrum in a three-dimensional model of structural glass focusing on small system sizes, and using different observables, i.e., the density of states D(?), the cumulative of the density of states F(?), and the dynami

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::84589b3931b8c4761f44cb48ba7ae8f0
https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.2.043248

CERN’s Linac4 cesiated surface H− source

Autor: M. Paoluzzi, D. Steyaert, N. David, Serge Mathot, Stefan Briefi, M. Haase, D. Fink, Alessandra Lombardi, Davide Aguglia, Marco Garlaschè, C. Machado, N. Thaus, M. O'Neil, R. Scrivens, I. Koszar, Roberto Guida, S. Mattei, Ursel Fantz, Alessandro Dallocchio, J. D. Hansen, A. Jones, Alexej Grudiev, G. Voulgarakis, E. Chaudet, Akiyoshi Hatayama, F. Di Lorenzo, Y. Coutron, P. Moyret, Sebastien Bertolo, U. Raich, Taneli Kalvas, K. Nishida, J. Lettry, Federico Roncarolo, A. Butterworth, Jean-Baptiste Lallement, Cristiano Mastrostefano

Publikováno v: AIP Conference Proceedings

Linac4 cesiated surface H− sources are routinely operated for the commissioning of the CERN’s Linac4 and on an ion source test stand. Stable current of 40-50 mA are achieved but the transmission through the LEBT of 80% was below expectations and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d7c743294f520f31559300bb0f9d7cd
https://doi.org/10.1063/1.4995722