Trends in pressure-induced layer-selective half-collapsed tetragonal phases in the iron-based superconductor family $AeA$Fe${}_4$As${}_4$

Vladislav Borisov, Paul C. Canfield, Roser Valenti

By performing pressure simulations within density functional theory for the family of iron-based superconductors $AeA$Fe${}_4$As${}_4$ with $Ae$ = Ca, Sr, Ba and $A$ = K, Rb, Cs we p…