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Nonlinear LiBIIICYI2 crystals for mid-IR and far-IR: Novel aspects in crystal growth

“…We used an original technique of thermo-microscopic analysis with a rapid heating which is acceptable when working with the decomposing and aggressive compounds [16]. This technique has already been successfully used to study the melting and evaporation processes for other decomposing compounds, including those with the chemically active melt and vapor [17,18]. To detect secondary phases in bulk crystals and in melts quenched from high temperatures a new stoichiographic technique of differential dissolution (DD) was taken [19,20].…”

High-temperature solid–vapor and liquid–vapor transitions in binary and ternary chalcogenides La2S3, MoS2, Mo2S3 and LiInSe2

“…A special thermomicroscopic apparatus with rapid heating, high pressures of an inert gas and specific recording systems were proposed in [2]. While the application of the technique to determine the melting points of decomposing compounds was demonstrated in [2,3], other possibilities including precise measurements of vapor pressure still remained to be solved. In the present work, this technique combined with a precise chemical and phase identification of the products (vapor condensate and remainder) quenched from the temperature of any peak in the thermal curves was used.…”