Crystal Structure Dynamics of RFe3(BO3)4 Single Crystals in the Temperature Range 25–500 K

The multiferroic RFe3(BO3)4 family is characterized by diverse magnetic, magnetoelectric, and magnetoelastic properties, the fundamental aspects of which are essential for modern electronics. present research, using single-crystal X-ray diffraction (XRD) Mössbauer spectroscopy (MS) in temperature range 25–500 K, aimed to analyze influence local atomic coordination on magnetoelectric properties exchange super-exchange interactions RFe3(BO3)4. Low-temperature, XRD data magnetically ordered phase at 25 were obtained first time, supplemented with higher temperatures, making it possible draw conclusions about mechanism structural dynamics. It was shown that, structures R = Gd, Ho, Y (low-temperature space group P3121), a shift oxygen atoms (O2, second sphere atoms) accompanied rotation B2O3 triangle toward low different rearrangements iron chains two types, contrast Nd Sm borates (space R32). These P3121 affected paths temperatures. MS results confirm distant environment rare-earth