Fig. 1: Material classification matrix.
From: Machine learned synthesizability predictions aided by density functional theory
A matrix for categorizing materials that have been attempted for synthesis based on their synthesizability and stability. Category I materials are stable and synthesizable; category II materials are unstable, yet synthesizable; category III materials are stable, yet unsynthesizable; category IV materials are unstable and unsynthesizable. Categories labeled “correlated'' include materials whose stability directly describes their synthesizability. That is, materials are expected to be synthesizable if stable and are expected to be unsynthesizable if unstable.
