Dispersion of the local parameters of quasilocalized low-frequency Vibrational modes in a low-temperature glass:Direct observation via single-molecule spectroscopy

摘要

Spectra of single tetra-tert-butylterrylene chromophore molecules embedded in an amorphous polyisobutylene matrix as microprobes were recorded.The individual temperature dependences of the spectral linewidths for the same single molecules (SMs) in a broad temperature interval (1.6