Table 1 List of the structural phase transitions happening within different regimes of α for 6–16 ions, where 
and different configurations are sketched in Fig. 3(a): A, Line; B, Zigzag; C, Ellipse with a single ion or a line of ions encircled; D, Concentric ellipses.
and different configurations are sketched in From: Exploring structural phase transitions of ion crystals
N | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A → B | A → B | A → B | A → B | A → B | A → B | |||||
| A → B | A → B | A → B | A → B | |||||||
| A → B | B → C | B → C | ||||||||
| B → C | B → C | B → C | B → C | |||||||
| B → C | B → C | |||||||||
| B → C | B → C | C → D | C → D | C → D | ||||||
| B → C | C → D |
