Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

High frequency dynamics in a monatomic glass.

T Scopigno1, R Di Leonardo, G Ruocco

  • 1Dipartimento di Fisica and INFM, Universitá di Roma "La Sapienza," I-00185, Roma, Italy.

Physical Review Letters
|February 3, 2004
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Extreme abiotics drive sediment biocomplexity along pH gradients in a shallow submarine volcanic vent.

Marine pollution bulletin·2024
Same author

A model eye for fluorescent characterization of retinal cultures and tissues.

Scientific reports·2023
Same author

Collective excitations in a melt of fast phase change material GeCu<sub>2</sub>Te<sub>3</sub>.

Journal of physics. Condensed matter : an Institute of Physics journal·2023
Same author

Optical diffraction tomography of 3D microstructures using a low coherence source.

Optics express·2022
Same author

Assessment of Heating on Titanium Alloy Cerebral Aneurysm Clips during 7T MRI.

AJNR. American journal of neuroradiology·2022
Same author

The cumulative incidence of and risk factors for morphometric severe vertebral fractures in Japanese men and women: the ROAD study third and fourth surveys.

Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA·2021
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

High-frequency dynamics in glassy selenium reveal a dispersing acoustic mode, clarifying previous experimental contradictions. Sound velocity shows positive dispersion, and sound attenuation follows a generalized law across wave vectors.

Area of Science:

  • Condensed matter physics
  • Materials science
  • Amorphous materials dynamics

Background:

  • Understanding the high-frequency dynamics of glasses is crucial for materials science.
  • Previous studies on glassy selenium showed contradictions between experimental and numerical results regarding acoustic modes.

Purpose of the Study:

  • To investigate the high-frequency dynamics of glassy selenium.
  • To clarify discrepancies in previous experimental and numerical findings.
  • To characterize acoustic modes and their dispersion in glassy selenium.

Main Methods:

  • Inelastic X-ray scattering (IXS) experiments were conducted at the SPring-8 synchrotron facility (BL35XU).
  • High-quality data were obtained to analyze dynamics over a range of wave vectors (Q).

Related Experiment Videos

Main Results:

  • A dispersing acoustic mode was identified in glassy selenium for wave vectors (Q) ranging from 1.5 to 12.5 nm⁻¹.
  • Sound velocity exhibits positive dispersion, approximately 10% higher than the hydrodynamic value at Q<3.5 nm⁻¹.
  • Sound attenuation (Gamma(Q)) follows a generalized law, Gamma(Q) ∝ Ω(Q)², applicable to both low and high Q regions, resolving the Q² dependence observed in other glasses.

Conclusions:

  • The study clarifies the dynamics of glassy selenium, resolving prior experimental contradictions.
  • A generalized sound attenuation law was established for glassy selenium, extending beyond the hydrodynamic limit.
  • The findings contribute to a deeper understanding of vibrational dynamics in amorphous materials.