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2025-07-01 20:15:25 +08:00
parent 416cfdf006
commit 52a94dbd90
4 changed files with 34 additions and 6 deletions

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@@ -16,8 +16,6 @@ This approximation is widely adopted (cite) and justified by the fact that,
Therefore, negligible-polar phonons involved in Raman processes
have nearly indistinguishable properties from those at the #sym.Gamma point.
#include "figure-discont.typ"
gamma 点处 18 个声子的表示。它们的拉曼张量的形状可以确定,但大小无法确定。
// Representation of these 18 phonons, and the shape of their Raman tensors could be determined in advance.)

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@@ -1,15 +0,0 @@
#figure(
image("/画图/声子不连续/embed.svg"),
caption: [
(a) Phonon dispersion of 4H-SiC along the A#sym.GammaK high-symmetry path.
Gray lines represent negligible-polar phonon modes,
while colored lines indicate strong-polar phonon modes.
The green, red and blue lines indicate the mode along the z-direction, y-direction and x-direction, respectively.
Along A-#sym.Gamma path, strong-polar modes along x- and y-directions are degenerated,
showing as a single purple line.
(b) Magnified view of the boxed region in (a).
The orange dashed lines mark the phonon wavevectors involved in Raman scattering
with incident light along the z- and y-directions.
],
placement: none,
)<figure-discont>