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Optical Floating Zone Growth of β-BaB2O4 from a LiBa2B5O10-Based Solvent

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posted on 01.08.2007, 00:00 authored by Shilie Pan, Jared P. Smit, Courtney H. Lanier, Michael R. Marvel, Laurence D. Marks, Kenneth R. Poeppelmeier
Low-temperature barium metaborate β-BaB2O4 has been grown using a LiBa2B5O10-based solvent in a four-mirror optical floating zone furnace with a traveling solvent zone configuration. The β-BaB2O4 rods grown are composed of several different crystal domains, ranging from 100 μm to 1 mm in diameter, and lithium, a component of the flux, was present only at the contaminant level. The technique demonstrates that thermal decomposition of the incongruently melting phase LiBa2B5O10 can be used to grow β-BaB2O4.