Effect of Bivalent Cation Ca-Doping on Magnetic Properties in Multiferroic YMnO3 Manganites

The effect of the gelation temperature on the structural, magnetic and magnetocaloric properties of perovskite nanoparticles manufactured using the sol–gel method

“…In order to check whether LS1, LS2 and LS3 exhibit spin-glass behavior, Mydosh parameter Ω = Δ T f / ( T f Δlog( f )) needs to be calculated, T f the temperature of the peak in ac susceptibility versus temperature also called the freezing temperature and f is the frequency. 25,26 Ω is found to be 0.005 for LS1 and LS2, and 0.006 for LS3. It is common that Ω for spin glass systems varies between 0.004 to 0.018, 27 which is the case for LS1, LS2 and LS3 samples.…”

Enhanced magnetism in Ru‐doped hybrid improper perovskite Ca3Mn2O7 via experimental and first‐principles study

“…To analyze the distortion of MnO 6 in Ca 3 Ru x Mn 2− x O 7 ( x = 0, 0.02, 0.06, 0.10), the Jahn–Teller effect needed to be considered 26 . The process of high‐temperature fabrication and Ru‐doping may introduce Mn 3+ .…”

“…To analyze the distortion of MnO 6 in Ca 3 Ru x Mn 2−x O 7 (x = 0, 0.02, 0.06, 0.10), the Jahn-Teller effect needed to be considered. 26 The process of high-temperature fabrication and Ru-doping may introduce Mn 3+ . If the d 3𝑧 2 −𝑟 2 orbital is occupied, the Jahn-Teller effect will manifest as out of plane Mn-O bonds-stretching 27 (as shown in Figure 2C), resulting in unequal equatorial and axial Mn-O bond distances.…”