view article

Figure 3
Fe2P2O7. Temperature-dependent Raman spectra for the modifications α1 (T ≤ −140°C), α2 (−140 ≤ T ≤ 70°C), α3 (70°C ≤ T ≤ 190°C) and β (T ≥ 190°C).

IUCrJ
Volume 12| Part 6| November 2025| Pages 670-682
ISSN: 2052-2525