Figure 1
From: The study of surface states in a semi-infinite crystal
Two type structures for the crystals with the reflection symmetry.
(a) Type I “…-P-P-P-P-…”. (b) Type II “…-P-Q-P-Q-…”.
Figure 1 | Scientific Reports
From: The study of surface states in a semi-infinite crystal
Two type structures for the crystals with the reflection symmetry.
(a) Type I “…-P-P-P-P-…”. (b) Type II “…-P-Q-P-Q-…”.
