Understanding Complex Interplay among Different Instabilities in Multiferroic BiMn 7 O 12 Using 57 Fe Probe Mössbauer Spectroscopy. - Soboleva, Iana S.; Nitsenko, Vladimir I.; Sobolev, Alexey V.; Smirnova, Maria N.; Belik, Alexei A.; Presniakov, Igor A. (International Journal of Molecular Sciences, 2024)