Terahertz time-domain spectroscopy and low-frequency raman scattering were performed on polymethyl methacrylate to detect the boson…
For disordered systems, a universal excitation called boson peak appears in the terahertz range. In this…
Terahertz time-domain spectroscopy and low-frequency raman scattering were performed on polymethyl methacrylate to detect the boson…
For disordered systems, a universal excitation called boson peak appears in the terahertz range. In this…