Smith, A.L. (author), Hen, Amir (author), Magnani, Nicola (author), Sanchez, Jean Pierre (author), Colineau, Eric (author), Griveau, Jean Christophe (author), Raison, Philippe E. (author), Caciuffo, Roberto (author), Konings, R. (author), Cheetham, Anthony K. (author) The physical and chemical properties at low temperatures of hexavalent disodium neptunate α-Na<sub>2</sub>NpO<sub>4</sub> are investigated for the first time in this work using Mössbauer spectroscopy, magnetization, magnetic susceptibility, and heat capacity measurements. The Np(VI) valence state is confirmed by the isomer shift value of the...
journal article 2016
