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Anisotropic Light-Matter Interactions in Single Crystal Topological Insulator Bismuth Selenide | | Divya Rawat
; Aditya Singh
; Niraj Kumar Singh
; Ajay Soni
; | | Date: |
1 Jan 2023 | | Abstract: | Anisotropy of light-matter interactions in materials give remarkable
information about the phonons and their interactions with electrons. We report
the angle-resolved polarized Raman spectroscopy of single-crystal of Bi2Se3 to
obtain the elements of Raman tensor for understanding the strength of
polarization along different crystallographic orientations. Intensity variation
in the polar plots corresponding to E_g^1 ~ 37 cm-1, A_1g^1 ~71 cm-1, E_g^2 ~
130 cm-1, and A_1g^2 ~ 173 cm-1 suggests the higher differential polarizability
along cross-plane (bc-plane). The polar patterns and the differences in
elements of the Raman tensor provides the evidence of the fundamental
electron-phonon and anisotropic light matter interactions in Bi2Se3. | | Source: | arXiv, 2301.00350 | | Services: | Forum | Review | PDF | Favorites | |
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