Incoporation of Fe and Sn in Ge-Ga-Se-Te Glass Matrix

Chalcogenides, compounds based on chalcogens (S, Se, and Te) and elements from III-V groups of Periodic Table, have gained prominence for their unique properties in recent years. These materials can exist in crystalline or amorphous phases, depending on their thermal history, making them versatile for various applications in IR optics, sensor and phase-change memory devices. Incorporation of metals like Fe and Sn into diamagnetic chalcogenide glass matrix can introduce new properties, which can potentially lead to the applications of these materials in magneto-optics. Moreover, Fe-chalcogenides show superconductor properties with a high transition temperature, which could be a crucial discovery in the development of superconductors. In present work, the iron/tin-based chalcogenide composites were prepared and characterized with optical spectroscopy, differential scanning calorimetry, x-ray diffraction, and Raman spectroscopy methods. Four samples of Ge20Ga5FexSn10-xSe45Te20 family with x = 1, 3, 5, 7, 9 were successfully prepared by a standard vacuum melt-quench procedure using 10mm diameter quartz ampules and high-purity precursors of 20 g in total. . The obtained results were used to determine crystallinity degree of the prepared samples and possibility of their future applications, including thin film processing.