Hybrid crystals of cuprates and iron-based superconductors

Dai Xia¹, Le Cong-Cong¹, Wu Xian-Xin¹, Hu Jiang-Ping^{1, 2, 3, †,}

Calculated GGA phonon dispersions of (a) Ba₂CuO₂Fe₂As₂ and (b) K₂CuO₂Fe₂Se₂ in the paramagnetic state.