Article
Chemistry, Physical
Lijin Wang, Licun Fu, Yunhuan Nie
Summary: Research reveals that the relationship between the density of states and frequency of low-frequency excess vibrational modes in some three-dimensional glasses does not follow the quartic law found in previous simulation studies, which has implications for understanding the properties of glasses.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Physics, Multidisciplinary
Lijin Wang, Grzegorz Szamel, Elijah Flenner
Summary: The study reveals that the density of excess vibrational modes in glasses is proportional to their frequency and shows a consistent pattern within a specific frequency range. Furthermore, the density of excess modes is affected by the size of the system, particularly as the system size decreases.
PHYSICAL REVIEW LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Zeng-Yu Yang, Yun-Jiang Wang, Alessio Zaccone
Summary: The boson peak, a universal feature in both disordered and crystalline materials, has an inverse relationship with the activation energy of excitations in the potential energy landscape. Larger boson peaks are associated with shallower basins, lower activation barriers, and emergent anharmonic sectors in the PEL.
Article
Materials Science, Multidisciplinary
Z. Ovadyahu
Summary: This paper investigates the correlation between disorder and homogeneity in amorphous indium-oxide films. Thermal treatment is used to fine tune the system disorder, while inelastic light-scattering is used to monitor the system's homogeneity.
Article
Chemistry, Physical
Ming Yang, Wenyue Li, Xiongjun Liu, Hui Wang, Yuan Wu, Xianzhen Wang, Fei Zhang, Qiaoshi Zeng, Dong Ma, Haihui Ruan, Zhaoping Lu
Summary: This study demonstrates the significance of configurational entropy (S-conf) in the glass transition process through experimental and simulation results. A higher S-conf leads to a more stable and ordered glass structure.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Physics, Condensed Matter
Naoya Tomoshige, Shota Goto, Hideyuki Mizuno, Tatsuya Mori, Kang Kim, Nobuyuki Matubayasi
Summary: The study reveals that the vibrational properties of polymer glasses are influenced by the global elastic properties rather than the bending rigidity of the constituent polymer chains. The spatial heterogeneity of the local shear modulus distribution is found to be insensitive to changes in bending rigidity, indicating that the vibrational and acoustic properties of polymer glasses are solely controlled by the global shear modulus.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Spectroscopy
Michele Cassetta, Beatrice Giannetta, Francesco Enrichi, Claudio Zaccone, Gino Mariotto, Marco Giarola, Luca Nodari, Marco Zanatta, Nicola Daldosso
Summary: This study examines the effects of alkali vs iron ratio on the properties of synthetic basaltic glasses using Raman spectroscopy and calorimetry. The results show that changes in this ratio alter the glass transition interval and the structure of the glass. The study also reveals that increasing the alkali vs iron content results in a harder elastic medium without changing its nature.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Materials Science, Ceramics
J. Chacaliaza-Ricaldi, C. G. Lozano, H. J. L. Clabel, F. A. Ferri, A. D. Rodrigues, Y. Messaddeq, V. A. G. Rivera, E. Marega
Summary: Understanding the properties of tellurite glasses is crucial for the development of new technologies. This paper investigates the structural modification of tellurite-tungsten glass by doping with Er3+ and Pr3+ ions. The results show that the presence of Pr3+ ions alters the coordination of network formers and affects the optical and thermal properties. Raman spectroscopy reveals a significant change in low-frequency vibration modes with increasing concentrations of Pr3+ ions.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
Zhen-Ya Zhou, Qing Chen, Yang Sun, Hai-Bin Yu
Summary: The alpha(2) relaxation identified in metallic glasses influences the yielding behaviors of the materials, providing an additional way to control their mechanical properties. The transition from stress overshoot to nonovershoot yielding is related to the same time-temperature relation and microscopic origin of the alpha(2) relaxation.
Article
Physics, Fluids & Plasmas
D. A. Conyuh, Y. M. Beltukov
Summary: Viscoelastic effects are crucial in damping vibrational modes in harmonic amorphous solids. The relaxation of elastic waves in these materials is described using a memory function of a semi-infinite one-dimensional mass-spring chain. The initial vibrational energy spreads along the chain, but encounters a barrier at the beginning of the chain which reduces energy decay below the Ioffe-Regel frequency. A numerically stable method is presented to determine the parameters of the chain, based on Chebyshev expansion of the local vibrational density of states.
Article
Materials Science, Ceramics
H. Luo, V. M. Giordano, A. Gravouil, A. Tanguy
Summary: Structured metamaterials hold great promise in acoustic and thermal engineering, but simulating large systems can be computationally expensive. A continuous model is often used to describe the effective behavior, especially for materials like glass that have strong frequency and temperature-dependent wave attenuation. This study proposes a viscoelastic model based on a hierarchical multi-scale approach that accurately reproduces the phonon attenuation over a wide frequency range.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Ceramics
Nektarios K. Nasikas, Angelos G. Kalampounias
Summary: By utilizing a nonconventional melting technique, researchers synthesized a series of calcium aluminate glasses and investigated the relationship between the low-frequency spectral changes and elastic properties. The study revealed a systematic dependence of the Boson Peak frequency on the CaO content, which is correlated with the elastic properties.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Edan Lerner, Eran Bouchbinder
Summary: Glassy solids exhibit a wide variety of thermomechanical properties, which are believed to be related to nonphononic, low-energy quasilocalized excitations (QLEs). Recent computer simulations have revealed the emergence of QLEs during vitrification upon cooling from a melt. Progress has been made in understanding the emergence of QLEs in structural glasses over the past three decades, but challenges still exist.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Huiyang Fan, Zhao Fan, Xiongjun Liu, Zhaoping Lu, En Ma
Summary: In metallic glasses, predicting the propensity for atomic rearrangements is challenging due to spatial variations in their likelihood. Vibrational parameters are more effective than static structural parameters in forecasting local configurational transitions.
MATERIALS HORIZONS
(2021)
Article
Multidisciplinary Sciences
Takuya Kawada, Masashi Kawaguchi, Takumi Funato, Hiroshi Kohno, Masamitsu Hayashi
Summary: The observation of the acoustic spin Hall effect shows that spin current can be induced by lattice motion through spin-orbit interaction. The results demonstrate the strong coupling of electron spins with rotating lattices via the SOI, highlighting the potential of lattice dynamics to supply spin current in strong spin-orbit metals. The spin current in nonmagnetic metals scales with the SOI and the time derivative of the lattice displacement, leading to a field-dependent acoustic voltage in NM/ferromagnetic metal bilayers.
Article
Materials Science, Ceramics
Coralie Weigel, Charles Le Losq, Remy Vialla, Christelle Dupas, Sebastien Clement, Daniel R. Neuville, Benoit Ruffle
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2016)
Article
Chemistry, Physical
Antoine Letoublon, Serge Paofai, Benoit Ruffle, Philippe Bourges, Bernard Hehlen, Thierry Michel, Claude Ecolivet, Olivier Durand, Stephane Cordier, Claudine Katan, Jacky Even
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2016)
Article
Chemistry, Physical
Adrien Lignie, Wei Zhou, Pascale Armand, Benoit Ruffle, Richard Mayet, Jerome Debray, Patrick Hermet, Bertrand Menaert, Philippe Thomas, Philippe Papet
Article
Physics, Multidisciplinary
A. C. Ferreira, A. Letoublon, S. Paofai, S. Raymond, C. Ecolivet, B. Ruffle, S. Cordier, C. Katan, M. I. Saidaminov, A. A. Zhumekenov, O. M. Bakr, J. Even, P. Bourges
PHYSICAL REVIEW LETTERS
(2018)
Article
Multidisciplinary Sciences
B. Ruta, G. Baldi, Y. Chushkin, B. Ruffle, L. Cristofolini, A. Fontana, M. Zanatta, F. Nazzani
NATURE COMMUNICATIONS
(2014)
Article
Multidisciplinary Sciences
B. Ruta, F. Zontone, Y. Chushkin, G. Baldi, G. Pintori, G. Monaco, B. Ruffle, W. Kob
SCIENTIFIC REPORTS
(2017)
Article
Physics, Applied
Philippe Papet, Micka Bah, Abel Haidoux, Benoit Ruffle, Bertrand Menaert, Alexandra Pena, Jerome Debray, Pascale Armand
JOURNAL OF APPLIED PHYSICS
(2019)
Article
Materials Science, Multidisciplinary
A. Martinelli, G. Baldi, F. Dallari, B. Ruffle, F. Zontone, G. Monaco
PHILOSOPHICAL MAGAZINE
(2020)
Article
Chemistry, Physical
Daniel T. Bowron, David A. Keen, Mathieu Kint, Coralie Weigel, Benoit Ruffle, Leszek Konczewicz, Sylvie Contreras, Benoit Coasne, Gaston Garbarino, Mickael Beaudhuin, Julien Haines, Jerome Rouquette
Summary: In this study, the structural origin of the atomic-spring-like effect in a glassy silica-helium composite is determined using a combination of high-pressure experimental pair distribution function study and atom-scale molecular simulations. The reversible accumulation and restoration of energy at the subnanoscale is observed, and the compression behavior is characterized by a change in the inter-tetrahedral distances in the amorphous isotropic structure of silica. Impedance spectroscopy measurements provide a simple characterization of this unique glass property.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
B. Hehlen, P. Bourges, B. Ruffle, S. Clement, R. Vialla, A. C. Ferreira, C. Ecolivet, S. Paofai, S. Cordier, C. Katan, A. Letoublon, J. Even
Summary: The low-frequency lattice vibrations and relaxations in four 3D hybrid organolead perovskite crystals are investigated using various scattering techniques. It is found that the temperature dependence of lattice modes can be renormalized into universal curves, indicating a common vibrational dynamics during the cubic to tetragonal transition. The reorientational motions of molecular cations exhibit an order-disorder character similar to plastic crystals. At ultralow frequencies, quasielastic components associated with anharmonic motions of molecular cations in perovskite cavities are observed.
Article
Physics, Multidisciplinary
A. C. Ferreira, S. Paofai, A. Letoublon, J. Ollivier, S. Raymond, B. Hehlen, B. Ruffle, S. Cordier, C. Katan, J. Even, P. Bourges
COMMUNICATIONS PHYSICS
(2020)
Article
Materials Science, Multidisciplinary
Coralie Weigel, Marouane Mebarki, Sdbastien Clement, Rend Vacher, Marie Foret, Benoit Ruffle
Proceedings Paper
Engineering, Multidisciplinary
Coralie Weigel, Alain Polian, Mathieu Kint, Jerome Rouquette, Julien Haines, Marie Foret, Rene Vacher, Benoit Ruffle, Benoit Coasne
POROMECHANICS VI: PROCEEDINGS OF THE SIXTH BIOT CONFERENCE ON POROMECHANICS
(2017)
Article
Materials Science, Multidisciplinary
A. Huynh, E. Peronne, C. Gingreau, X. Lafosse, A. Lemaitre, B. Perrin, R. Vacher, B. Ruffle, M. Foret
Article
Materials Science, Multidisciplinary
C. Weigel, M. Foret, B. Hehlen, M. Kint, S. Clement, A. Polian, R. Vacher, B. Ruffle
