Hydrogen diffusion in bulk and nanocrystalline palladium: A quasielastic neutron scattering study. - Maiko Kofu; Naoki Hashimoto; Hiroshi Akiba; Hirokazu Kobayashi; Hiroshi Kitagawa; Tyagi, Madhusudan; Faraone, Antonio; Copley, John R. D.; Lohstroh, Wiebke; Osamu Yamamuro (Physical Review B, 2016)