Sol-gel based synthesis to explore structure, magnetic and optical properties of double perovskite Y2FeCrO6 nanoparticles

Structural, magnetic and optical properties of disordered double perovskite Gd2CoCrO6 nanoparticles

“…The resultant uffy powder was then ground in an agate mortar and nally calcinated at 800 °C for 6 hours in air. 22,33…”

“…9 Below 105 K magnetization gradually decreases due to the polarization of paramagnetic Gd ions along anti-parallel to the canted antiferromagnetic state of jCo + Crj sublattice and becomes zero at T comp = 30 K. At T < T comp , polarized Gd 3+ moment dominant over the canted antiferromagnetic state of jCo + Crj sublattice and magnetization become negative. 33,64 Fig. 8(b) displayed the inverse susceptibility c −1 vs. temperature curve obtained at 100 Oe using the FC technique.…”

B-site disorder driven Griffiths-like phase and electrochemical behavior in Y2NiCrO6 double perovskite

“…The observed spectra in the region between 1388 cm −1 and 1637 cm −1 suggests that the material could chemically interact with ambient CO 2 and adsorb carbonate ions onto its surface [13]. The peak at 2354 cm −1 relates to C = O vibrations [13].…”

“…The peaks found between 848 cm −1 and 1130 cm −1 in the FTIR spectrum of the material could be due to the presence of NO 3ions, indicating that the material has the capability to trap or incorporate NO 3ions [61]. The observed spectra in the region between 1388 cm −1 and 1637 cm −1 suggests that the material could chemically interact with ambient CO 2 and adsorb carbonate ions onto its surface [13]. The peak at 2354 cm −1 relates to C = O vibrations [13].…”

“…The absence of ordering in transition metal cations exhibits intriguing magnetic properties such as negative magnetization, exchange bias effect, etc [10,[12][13][14]. Interestingly, the disordering of transition metals Ni and Cr in La 2 NiCrO 6 double perovskite is found to exhibit a disordered-induced Griffithslike phase (GP) by the competition between different magnetic interactions close to the phase transition temperature [15,16].…”