16 lines
768 B
XML
16 lines
768 B
XML
#figure(
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image("/画图/声子不连续/embed.svg"),
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caption: [
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(a) Phonon dispersion of 4H-SiC along the A–#sym.Gamma–K high-symmetry path.
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Gray lines represent negligible-polar phonon modes,
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while colored lines indicate strong-polar phonon modes.
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The green, red and blue lines indicate the mode along the z-direction, y-direction and x-direction, respectively.
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Along A-#sym.Gamma path, strong-polar modes along x- and y-directions are degenerated,
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showing as a single purple line.
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(b) Magnified view of the boxed region in (a).
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The orange dashed lines mark the phonon wavevectors involved in Raman scattering
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with incident light along the z- and y-directions.
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],
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placement: none,
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)<figure-discont>
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