Time-of-Flight Detection of Boson Peak in Volcanic Glass.

Yuhei Komaki, Soo Han Oh, Koki Nagao, Tatsuya Mori, Seiji Kojima

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In one paragraph

Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Yuhei KomakiDepartment of Materials Science, University of Tsukuba, Tsukuba 305-8573, Ibaraki, Japan.

Soo Han OhDepartment of Materials Science, University of Tsukuba, Tsukuba 305-8573, Ibaraki, Japan.ORCID 0009-0002-9521-2606

Koki NagaoDepartment of Materials Science, University of Tsukuba, Tsukuba 305-8573, Ibaraki, Japan.

Tatsuya MoriDepartment of Materials Science, University of Tsukuba, Tsukuba 305-8573, Ibaraki, Japan.ORCID 0000-0002-9443-594X

Seiji KojimaDepartment of Materials Science, University of Tsukuba, Tsukuba 305-8573, Ibaraki, Japan.ORCID 0000-0003-1933-9269

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A universal excitation called a boson peak has been observed in glasses in the terahertz range. The terahertz time-domain spectroscopy (THz-TDS) enables the time-of-flight (TOF) detection of a boson peak. Volcanic obsidian is a typical natural inorganic glass. The broadband frequency dependence of complex dielectric constants was measured by TOF. The boson peak at 1.07 THz was observed at room temperature, which is lower than 1.2 THz of silica glass. The decrease in BP frequency may be attributed to the modulation of the SiO

Indexed as

boson peakdensity of statesdielectric constantglasslight–vibration couplingobsidianterahertz spectroscopytime of flight

Identifiers

PMID42795096

DOI10.3390/ma19183875

PMCPMC13608090

What OpenQuestion holds

Textmetadata

Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.