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説明:

Boson peak dynamics in glasses produce a robust crossover in the terahertz (THz) dielectric response that standard Debye or Lorentz models do not capture. We develop a continuum description of this THz response, coupling an infrared-effective charge fluctuation spectrum to a frequencydependent
shear modulus, and apply it to glycerol glass. The model reproduces the measured complex dielectric function and the nearly linear infrared light-vibration coupling around the boson peak, and highlights the dominant role of transverse shear dynamics.

権利情報:

• In Copyright
  

  ©2026 American Physical Society

キーワード: glass, dielectric response, glycerol

刊行年月日: 2026-08-27

出版者: American Physical Society (APS)

掲載誌:

• Physical Review B (ISSN: 24699950) vol. 114 issue. 7 074205

研究助成金:

• Japan Society for the Promotion of Science JP23H01139
• Japan Society for the Promotion of Science JP23K25836
• Japan Society for the Promotion of Science JP25H01519
• Japan Society for the Promotion of Science JP22K03543
• Japan Society for the Promotion of Science JP24K08045

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.6492

公開URL: https://doi.org/10.1103/sjkh-zd6t

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更新時刻: 2026-08-31 13:11:14 +0900

MDRでの公開時刻: 2026-08-31 14:27:54 +0900