Pauling entropy, metastability, and equilibrium in Dy2Ti2O7 spin ice by Giblin, SR, Twengström, M, Bovo, L, Ruminy, M, Bartkowiak, M, Manuel, P, Andresen, JC, Prabhakaran, D, Balakrishnan, G, Pomjakushina, E, Paulsen, C, Lhotel, E, Keller, L, Frontzek, M, Capelli, SC, Zaharko, O, McClarty, PA, Bramwell, ST, Henelius, P, Fennell, T