論文 『トポロジカル半金属Co3Sn2S2の偏光ラマンスペクトル』がJ.RamanSpectrosc.に掲載されました

Polarized Raman spectroscopy on topological semimetal Co3Sn2S2

Kenya Tanaka, Taishi Nishihara, Akira Takakura, Yasutomo Segawa, Kazunari Matsuda, Yuhei Miyauchi*

J. Raman Spectrosc. 2022, DOI: 10.1002/jrs.6459

We present polarized Raman spectroscopy of the topological semimetal Co3Sn2S2. Two major phonon Raman peaks were observed at 289 cm-1 and 386 cm-1 over continuous background emission signals, and attributed to Γ point phonon modes with Eg and A1g symmetries, respectively, according to the group theory and Raman tensor analysis. Line shape analyses revealed that the high- frequency A1g mode exhibited asymmetric peak feature suggesting the Fano resonance between the A1g phonon scattering with the continuous electronic background.

分子科学研究所 生命・錯体分子科学研究領域

瀬川グループ

〒444-8787愛知県岡崎市明大寺町字東山5-1 山手キャンパス3号館4階西

Department of Life and Coordination-Complex Molecular Science, Institute for Molecular Science (IMS)

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