Unraveling the nature of Fe-doping mediated inter- and intra-chain interactions in Ca3Co2O6

Anomalous magnetic and electrical properties of disordered double perovskite alloy LaCaMnFeO6

“…As increasing the applied field, T irr and T B shift to lower temperature with a suppression of the divergence in the FC and ZFC magnetizations. It is worth noting that the thermo-magnetic irreversibility along with the peak in the ZFC magnetization are common features for superparamagnetic, cluster-glass-like, spin-glass-like states related to the magnetic anisotropic effect [26,27]. However, the values of T irr and T B are often very close in spin-glass states [27,28], which is not observed in the studied sample (T irr ?…”

“…Moreover, the remanent magnetization and clear hysteresis loops in the M(H) data (figure 5(a)), which cannot occur in superparamagnetic systems, rule out the possibility of superparamagnetism [27,28]. On the other hand, the Arrott plots M 2 versus H/M derived from the magnetization isotherms at various temperatures of 4-100 K are demonstrated in figure 5(b).…”

Multilevel thermal memory cell based on cyclic temperature experiment under glassy phase of frustrated magnet

“…However, in an earlier report for Ca 3 Co 2−x Mn x O 6 , the increased relaxation time for intermediate Mn-compositions has been attributed to the effect of chemical disorder [24]. Therefore, with impurity substitution in Ca 3 Co 2 O 6 , the interplay of competing magnetic interactions and chemical disorder effects become crucial for glassy features [24][25][26][27][28][29][30]. The challenging issue in this compound is the single-phase synthesis of doped samples to explore the new mechanism of in-site originated disorder, which provides a plethora of anisotropy types.…”

Magnetic properties of a mixed spin-3/2 and spin-2 Ising octahedral chain

“…Some of the low-spin Co 3+ ions were converted into Co 2+ ions or, occasionally, both spin states experienced crossover due to the Fe-doping level x. [15] By employing the transfermatrix method, the ground state phase diagram of spin-1/2 orthogonal-dimer chains has been investigated. [16] Magnetic properties of the quasi-1D spin-1 diamond chain with singleion anisotropy have also been discussed.…”