Journal or Book Title
Applied Physics Letters
Millimeter-sized single crystals of LaFeAsO, LaFeAsO1−xFx, and LaFe1−xCoxAsO were grown in NaAs flux at ambient pressure. The detailed growth procedure and crystal characterizations are reported. The as-grown crystals have typical dimensions of3×4×0.05–0.3 mm3 with the crystallographic c-axis perpendicular to the plane of the platelike single crystals. Various characterizations confirmed the high quality of our LaFeAsO crystals. Co and F were introduced into the lattice leading to superconductingLaFe1−xCoxAsO and LaFeAsO1−xFx single crystals, respectively. This growth protocol is expected to be broadly applicable to grow other RMAsO (R = rare earth, M = transitionmetal) compounds.
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American Institute of Physics
Yan, J.-Q.; Nandi, Shibabrata; Zarestky, Jerel L.; Tian, W.; Kreyssig, Andreas; Jensen, Brandt A.; Kracher, A.; Dennis, Kevin W.; McQueeney, Robert J.; Goldman, Alan I.; McCallum, R. William; and Lograsso, Thomas A., "Flux growth at ambient pressure of millimeter-sized single crystals of LaFeAsO, LaFeAsO1−xFx, and LaFe1−xCoxAsO" (2009). Ames Laboratory Publications. 118.