4 papers
Continuum model for the terahertz dielectric response of glasses
Tatsuya Mori, Hideyuki Mizuno, Yuzuki Motokawa +6
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 de…
Boson peak in the dynamical structure factor of network- and packing-type glasses
Hideyuki Mizuno, Emi Minamitani
Glasses are structurally disordered solids that host, in addition to crystalline-like phonons, vibrational excitations with no direct phononic counterpart. A long-standing universa…
Persistent homology elucidates hierarchical structures responsible for mechanical properties in covalent amorphous solids
Emi Minamitani, Takenobu Nakamura, Ippei Obayashi +1
Understanding how atomic-level structures govern the mechanical properties of amorphous materials remains a fundamental challenge in solid-state physics. Under mechanical loading,…
Relationship between the boson peak and first sharp diffraction peak in glasses
Dan Kyotani, Soo Han Oh, Suguru Kitani +10
Boson peak (BP) dynamics refers to the universal excitation in the terahertz region of glass. In this study, the universal dynamics of BP were quantitatively evaluated in various g…