Synthesis, Crystal Growth, and Acoustophotovoltaic Effect of TlIn_(1-x)Pr_xSe_2 and TlIn_(1-x)Pr_xTe_2

摘要

Procedures were developed for growing perfect TlIn_(1-x)Pr_xSe_2 and TlIn_(1-x)Pr_xTe_2 (0 ≤ x ≤ 0.08) single crystals. The growth charges were synthesized by a process involving partial cooling of a tilted, rotating tube. The crystals grown by the floating zone technique were found to readily cleave in two, mutually perpendicular mirror planes to give rectangular parallelepipeds. The crystals were shown to exhibit a sizeable acous-tophotovoltaic effect: a combined action of radiation and sound waves produced an emf between the electrodes or a short-circuit current.