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Raman spectroscopic study of the phase transitions in the (NH4)3WO3F3 oxyfluoride |
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| Authors: | A N Vtyurin A S Krylov Yu V Gerasimova V D Fokina N M Laptash E I Voĭt |
| Institution: | (1) Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia;(2) Institute of Chemistry, Far East Division, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, Vladivostok, 690022, Russia |
| Abstract: | The Raman spectra of (NH4)3WO3F3 perovskite-like oxyfluorides are measured in the frequency range 70–3600 cm?1. The anomalies observed in the spectral parameters upon phase transitions at a temperature of 200 K under atmospheric pressure and at room temperature under a pressure of 1.4 GPa are interpreted. |
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