Výsledky vyhledávání - "Brillouin neutron scattering"

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Search for acoustic and optic vibrational modes in Zr40Be60 metallic glass

Autor: G. F. Syrykh, A. Stoliarov, A. Laloni, Andrea Orecchini, A. de Francesco

Publikováno v: JETP letters 105 (2017): 479–482. doi:10.7868/S0370274X17080033
info:cnr-pdr/source/autori:G. Syrykh, A. Orecchini, A. De Francesco, A. Laloni, A. Stoliarov/titolo:Search for acoustic and optic vibrational modes in Zr40Be60 metallic glass/doi:10.7868%2FS0370274X17080033/rivista:JETP letters/anno:2017/pagina_da:479/pagina_a:482/intervallo_pagine:479–482/volume:105

Dispersion of collective modes in metallic glass (Zr40Be60, composed of disparate mass particles) was measured at small-angle spectrometer BRISP at the ILL what enabled us to extend to lower momentum transfers unlike to high-angle spectrometer IN4 at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9abc8e71b85e3fd2a588f6b0902011f6
https://doi.org/10.1134/s0021364017080070

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Multiple Interacting Collective Modes and Phonon Gap in Phospholipid Membranes

Autor: Valeria Conti Nibali, Caterina Branca, Francesco Sacchetti, Ulderico Wanderlingh, Alessandro Paciaroni, Giovanna D'Angelo, Caterina Petrillo, Alessio De Francesco

Publikováno v: The journal of physical chemistry letters (2018). doi:10.1021/acs.jpclett.8b01658
info:cnr-pdr/source/autori:D'Angelo G., Nibali V.C., Wanderlingh U., Branca C., De Francesco A., Sacchetti F., Petrillo C., Paciaroni A./titolo:Multiple Interacting Collective Modes and Phonon Gap in Phospholipid Membranes/doi:10.1021%2Facs.jpclett.8b01658/rivista:The journal of physical chemistry letters/anno:2018/pagina_da:/pagina_a:/intervallo_pagine:/volume
The journal of physical chemistry letters 9 (2018): 4367–4372. doi:10.1021/acs.jpclett.8b01658
info:cnr-pdr/source/autori:D'Angelo, Giovanna; Nibali, Valeria Conti; Wanderlingh, Ulderico; Branca, Caterina; De Francesco, Alessio; Sacchetti, Francesco; Petrillo, Caterina; Paciaroni, Alessandro/titolo:Multiple Interacting Collective Modes and Phonon Gap in Phospholipid Membranes/doi:10.1021%2Facs.jpclett.8b01658/rivista:The journal of physical chemistry letters/anno:2018/pagina_da:4367/pagina_a:4372/intervallo_pagine:4367–4372/volume:9

We combine Brillouin neutron scattering measurements with recent inelastic X-ray scattering [ Zhernenkov et al. Nat. Commun. 2016, 7, 11575] to propose a model for the collective dynamics of phospholipid bilayers. Neutron and X-ray spectra were fitte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a795b2d362fc1072da6ed7f6d0d6081
https://pubmed.ncbi.nlm.nih.gov/30024172

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A high-flux upgrade for the BRISP spectrometer at ILL

Autor: A. De Francesco, Francesco Sacchetti, Alessandro Paciaroni, Wolf Christian Pilgrim, Caterina Petrillo, Andrea Orecchini, A. Laloni, Ferdinando Formisano, Marco Zanatta, Eleonora Guarini, Jens-Boie Suck, Emmanuel Farhi, Fabrizio Barocchi

Publikováno v: Review of scientific instruments 88 (2017): 053905. doi:10.1063/1.4983572
info:cnr-pdr/source/autori:M. Zanatta, F. Barocchi, A. De Francesco, E. Farhi, F. Formisano, E. Guarini, A. Laloni, A. Orecchini, A. Paciaroni, C. Petrillo, W.-C. Pilgrim, J.-B. Suck, F. Sacchetti/titolo:A high-flux upgrade for the BRISP spectrometer at ILL/doi:10.1063%2F1.4983572/rivista:Review of scientific instruments/anno:2017/pagina_da:053905/pagina_a:/intervallo_pagine:053905/volume:88

To date, the BRISP spectrometer represents the state-of-the-art for every instrument aiming to perform Brillouin neutron scattering. Exploiting accurate ray-tracing McStas simulations, we investigate an improved configuration of the BRISP primary spe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7693b5161805730723a4c15e14490d3
http://hdl.handle.net/11562/962660

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Collective THz dynamics in living Escherichia coli cells

Autor: Federico Sebastiani, Michael Haertlein, Andrea Orecchini, Marion Jasnin, G. Zaccai, Francesco Sacchetti, M. Moulin, A. De Francesco, Alessandro Paciaroni, Caterina Petrillo

Publikováno v: Chemical physics
424 (2013): 84–88. doi:10.1016/j.chemphys.2013.06.020
info:cnr-pdr/source/autori:F. Sebastiani, A. Orecchini, A. Paciaroni, M. Jasnin, G. Zaccai, M. Moulin, M. Hartlein, A. De Francesco, C. Petrillo, F. Sacchetti/titolo:Collective THz dynamics in living Escherichia coli cells/doi:10.1016%2Fj.chemphys.2013.06.020/rivista:Chemical physics (Print)/anno:2013/pagina_da:84/pagina_a:88/intervallo_pagine:84–88/volume:424

We have employed neutron Brillouin spectroscopy to study coherent collective density fluctuations in the biological macromolecular components of living Escherichia coli cells. To highlight the contribution of the macromolecular material alone, a suit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d00b0238c1b1102f572dca2991172e2e
https://doi.org/10.1016/j.chemphys.2013.06.020

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Inelastic Neutron Scattering Spectra Analysis through Reversible Jump MCMC

Autor: A. De Francesco E. Guarini U. Bafile F. Formisano L. Scaccia

Publikováno v: 2nd International Workshop on Brillouin Neutron Scattering-BANANA, Roma, 03/03/2016-05/02/2016
info:cnr-pdr/source/autori:A. De Francesco E. Guarini U. Bafile F. Formisano L. Scaccia/congresso_nome:2nd International Workshop on Brillouin Neutron Scattering-BANANA/congresso_luogo:Roma/congresso_data:03%2F03%2F2016-05%2F02%2F2016/anno:2016/pagina_da:/pagina_a:/intervallo_pagine

The extraction of physical quantitative information from inelastic Brillouin neutron scattering data is often a challenging task, especially when dealing with specific samples or anytime the scattering signal is very weak. These limiting conditions t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::573949a5974445482117d992a37c5728
https://publications.cnr.it/doc/350442

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Bayesian approach to the analysis of neutron Brillouin scattering data on liquid metals

Autor: Luisa Scaccia, Eleonora Guarini, A. De Francesco, Ubaldo Bafile, Ferdinando Formisano

Publikováno v: Physical review. E, Statistical, nonlinear, and soft matter physics
94 (2016). doi:10.1103/PhysRevE.94.023305 I. INTRODUCTION
info:cnr-pdr/source/autori:A. De Francesco, E. Guarini, U. Bafile, F. Formisano and L. Scaccia/titolo:Bayesian approach to the analysis of neutron Brillouin scattering data on liquid metals/doi:10.1103%2FPhysRevE.94.023305 I. INTRODUCTION/rivista:Physical review. E, Statistical, nonlinear, and soft matter physics (Print)/anno:2016/pagina_da:/pagina_a:/intervallo_pagine:/volume:94

When the dynamics of liquids and disordered systems at mesoscopic level is investigated by means of inelastic scattering (e.g., neutron or x ray), spectra are often characterized by a poor definition of the excitation lines and spectroscopic features

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea8743f618ff2a31bbc14ed6bb4ee2e3
http://www.cnr.it/prodotto/i/357877

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Transition from hydrodynamic to viscoelastic propagation of sound in molten RbBr

Autor: Wolf Christian Pilgrim, Franz Demmel, Ferdinando Formisano, D. Szubrin, A. De Francesco

Publikováno v: Physical review. E, Statistical, nonlinear, and soft matter physics
92 (2015): 012307-1–012307-11. doi:10.1103/PhysRevE.92.012307
info:cnr-pdr/source/autori:F. Demmel, D. Szubrin, W. C. Pilgrim, A. De Francesco, and F. Formisano/titolo:Transition from hydrodynamic to viscoelastic propagation of sound in molten RbBr/doi:10.1103%2FPhysRevE.92.012307/rivista:Physical review. E, Statistical, nonlinear, and soft matter physics (Print)/anno:2015/pagina_da:012307-1/pagina_a:012307-11/intervallo_pagine:012307-1–012307-11/volume:92

Inelastic neutron scattering was applied to measure the acoustic-type excitations in the molten alkali halide rubidium bromide. For molten RbBr neutron scattering is mainly sensitive to the number density fluctuation spectrum and is not influenced by

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