Li4Mo5O17 crystals by LTG Cz: faceting and temperature-dependent crystal structure
- Received: December, 11, 2024
- Revised: December, 11, 2024
- Accepted for publication: December, 11, 2024
- DOI 10.26902/JSC_id143109
- EDN: FMPQZC
- Views: 280
1 Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2 Novosibirsk State Technical University, Novosibirsk, Russia
3 Sobolev Institute of Geology and Mineralogy SB RAS, Novosibirsk, Russia
An approach to growing Li4Mo5O17 crystals by the low-thermal-gradient Czochralski technique (LTG CZ) was optimized to obtain bulk single crystals with dimensions 70×35×35 mm3. An alteration of temperature parameters during the crystal growth process was proposed. Faceting was studied on a number of Li4Mo5O17 crystals grown under varying conditions, Miller indexes of the developed facet families were determined, and based on the obtained data, a reference model of Li4Mo5O17
crystal was visualized. Molybdenum coordination in Li4Mo5O17
crystal was studied by X-ray photoelectron spectroscopy. X-ray diffraction patterns of Li4Mo5O17 were recorded in the
temperature range of 323–743 K. Based on obtaining data, thermal expansion
vectors were calculated and an expansion ellipsoid was visualized.
Keywords: Czochralski technique, low temperature gradients, molybdates, Li4Mo5O17, faceting, thermal expansion
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