Terahertz Time-Domain Spectroscopy and Low-Temperature Specific Heat Investigation of Vitreous Glucose

POSTER

Abstract

The boson peak is a low energy excitation universally observed in the THz region of the amorphous materials. The boson peak of infrared spectra appears in the spectra of α(ν)/ν2 [α(ν) is the absorption coefficient]. In this study, we performed terahertz time-domain spectroscopy on glassy glucose to investigate the boson peak dynamics. Moreover, we determined infrared light-vibration coupling coefficient using the α(ν) and vibrational density of states obtained from the low-temperature specific heat measurement.

Presenters

  • Tatsuya Mori

    Division of Materials Science, University of Tsukuba

Authors

  • Tatsuya Mori

    Division of Materials Science, University of Tsukuba

  • Mikitoshi Kabeya

    Division of Materials Science, University of Tsukuba

  • Suguru Kitani

    Laboratory for Materials and Structures, Tokyo Institute of Technology

  • Yasuhiro Fujii

    Department of Physical Sciences, Ritsumeikan University

  • Jae-Hyon Ko

    Department of Physics, Hallym University

  • Akitoshi Koreeda

    Department of Physical Sciences, Ritsumeikan University

  • Hitoshi Kawaji

    Laboratory for Materials and Structures, Tokyo Institute of Technology

  • Seiji Kojima

    Division of Materials Science, University of Tsukuba