Terahertz Time-Domain Spectroscopic Study Of Oxide Glass With Entropic Elasticity
2020 45TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)(2020)
摘要
For disordered systems, a universal excitation called the boson peak appears in the terahertz range. In this study, we performed terahertz time-domain spectroscopy on an oxide glass with entropic elasticity-mixed alkali metal metaphosphate glass with the chemical composition Li0.25Na0.25K0.25Cs0.25PO3 (LiNaKCsPO3)-to detect the boson peak. The obtained spectra were compared with results of low-frequency Raman scattering and low-temperature specific heat measurements.
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关键词
low-temperature specific heat measurements,oxide glass,disordered systems,terahertz time-domain spectroscopy,chemical composition,low-frequency Raman scattering measurement,alkali metal metaphosphate glass,entropic elasticity,Li0.25Na0.25K0.25Cs0.25PO3,LiNaKCsPO3
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