| Abstract
| - We determined the primary crystallization region of NaAl(MoO4)2 (NAM) in the ternary system Na2O−Al2O3−MoO3 and then analyzed the growth conditions to obtain single crystals by TSSG. NAM doped with Cr3+ has been shown to have interesting properties in tunable laser applications. Tunable solid-state lasers are of interest in scientific research, medicine, and communications.
- The main aim of this study was to determine the primary crystallization region of NaAl(MoO4)2 (NAM)in its self-flux. We determined the saturation temperature isotherms of NAM and two neighboring phases,Na2Mo2O7 and Al2(MoO4)3, in the ternary system Na2O−Al2O3−MoO3. We have analyzed several growingconditions in an effort to optimize the quality of single crystals obtained by a top-seeded solution growthtechnique. In the present work, we studied the thermal behavior of undoped and Cr3+-doped crystal andfound a reversible phase transition at about 780 K. We also studied the evolution of the cell parametersof NAM as a function of temperature between room temperature and 573 K, and the linear thermalexpansion tensor was determined. Furthermore, we determined some optical properties, such as thetransparency window of NaAl(MoO4)2 and NaAl0.99Cr0.01(MoO4)2, the UV cutoff for both materials, andthe spectroscopic characterization of Cr3+ in this crystal.
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