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Smith, A.L. (author), Colineau, Eric (author), Griveau, Jean Christophe (author), Popa, Karin (author), Kauric, Guilhem (author), Martin, Philippe M. (author), Scheinost, Andreas C. (author), Cheetham, Anthony K. (author), Konings, Rudy J.M. (author)The physicochemical properties of the potassium neptunate K<sub>2</sub>NpO<sub>4</sub> have been investigated in this work using X-ray diffraction, X-ray absorption near edge structure (XANES) spectroscopy at the Np-L<sub>3</sub> edge, and low-temperature heat capacity measurements. A Rietveld refinement of the crystal structure is reported...journal article 2017
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Smith, A.L. (author), Martin, Philippe M. (author), Prieur, Damien (author), Scheinost, Andreas C. (author), Raison, Philippe E. (author), Cheetham, Anthony K. (author), Konings, R. (author)The charge distributions in α-Na<sub>2</sub>UO<sub>4</sub>, Na<sub>3</sub>NpO<sub>4</sub>, α-Na<sub>2</sub>NpO<sub>4</sub>, Na<sub>4</sub>NpO<sub>5</sub>, Na<sub>5</sub>NpO<sub>6</sub>, Na<sub>2</sub>PuO<sub>3</sub>, Na<sub>4</sub>PuO<sub>5</sub>, and Na<sub>5</sub>PuO<sub>6</sub> are investigated in this work using X-ray absorption near-edge...journal article 2016