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Candidate materials for embedded second-order topological phases (ET2)
| Materials | SCing Tc | Index | Bound State |
|---|---|---|---|
| FeTe0.55Se0.45 | 14.5 K | (1; 0, 0, 1) | MZM |
| LiFeAs | 17 K | (1; 0, 0, 1) | MKP |
| (Li,Fe)OHFeSe | 41 K | (1; 0, 0, 0) | N/A |
| β-PdBi2 | 5.3 K | (1; 0, 0, 1) | MZM |
Candidates with dislocation Majorana zero modes (MZMs) or Majorana Kramers pairs (MKPs) can realize an ET2 of class D or DIII. (Li,Fe)OHFeSe is not expected to carry any ET2 physics.
