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. 2016 Dec 9;7:13552. doi: 10.1038/ncomms13552

Figure 3. Calculated vibrational patterns for Raman modes that are directly sensitive to the inversion symmetry breaking.

Figure 3

Calculated vibrational patterns in the Td phase (ae) and corresponding Bu and Au modes in the 1T′ phases (fj). A, D, Q and S modes vibrate in the bc plane and N mode in the ac plane.