Fig. 6. Examples of some candidate cuprates with T_c about 77 K in the MP database and their electronic density of states (DOS) from MP. (a) Li₄Cu₃SbO₈ (89.23 K); (b) Li₄NbCu₃O₈ (98.62 K); (c) CaCuAsO₅ (61.78 K); (d) Ba₂DyCu₃O₇ (89.99 K); (e) Li₄Cu₃TeO₈ (87.98 K); (f) CaCuAs₂O₇ (79.73 K).