Loss of superconductivity with the addition of Al to MgB2 and a structural transition in Mg1-x AlxB2. (Nature, 2001)

(untitled) - Slusky, J; Rogado, N; Regan, K; Hayward, M; Khalifah, P; He, T; Inumaru, K; Loureiro, S; Haas, M; Zandbergen, H; Cava, R