Divacancy superstructures in thermoelectric calcium-doped sodium cobaltate

We have grown single crystals of NaxCayCoO2 and determined their superstructures as a function of composition using neutron and x-ray diffraction. Inclusion of Ca2+ stabilizes a single superstructure across a wide range of temperatures and concentrations. The superstructure in the Na+ layers is base...

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Bibliographic Details
Main Authors: Porter, D, Roger, M, Gutmann, M, Uthayakumar, S, Prabhakaran, D, Boothroyd, A, Pandiyan, MS, Goff, J
Format: Journal article
Language:English
Published: American Physical Society 2014