Structural and magnetotransport properties of (La, Pr)-Ba manganites

Sizable magnetic entropy change in bismuth-substituted La0.75Bi0.1Na0.15MnO3 manganite

“…The Griffith phase is an intermediate phase between FM to PM transitions where the formation of ferromagnetically ordered nanometric clusters is seen at some temperature T G before the actual long-range FM ordering temperature T C . The major cause of the formation of nanometric clusters of ferromagnetic polarons or Griffith phase (GPLS) like singularity is quenched disorders, 110 which arise due to the size difference between La 3+ and Bi 3+ cations. The deviation from linearity of χ −1 in χ −1 – T variation is the signature of singularity or magnetic polarons in the PM region.…”

Exotic magnetic properties in Zintl phase BaVSe3: a theoretically supported experimental investigation

“…This is due to the fact that the increase in field leads to the magnetization of the spins which are outside the clusters or the masking FM signal by the enhanced PM background. 52…”

“…51 The downturn deviation from standard PM behavior in the inverse susceptibility graph at lower applied fields is a hallmark of the presence of the GP. 52 It is due to the short-range FM ordering in the PM region. However, on increasing the applied magnetic field the anomaly in the C-W plot softens and attains the classical C-W behavior.…”

“…This is due to the fact that the increase in field leads to the magnetization of the spins which are outside the clusters or the masking FM signal by the enhanced PM background. 52 The susceptibility of the GP at low applied fields follows a power-law, which is formulated in eqn (6).…”

Thermomagnetic Correlation in La0.85-xBixNa0.15MnO3 Soft Ferromagnet due to Nonmagnetic Bi3+ Substitution

“…In large bandwidth manganites, the lone pair characteristic of bismuth has its upper hand [17] thus, the La 0.85 Na 0.15 MnO 3 being large bandwidth manganite, lone pair dominancy is expected with bismuth substitution. The larger ionic radius of bismuth compared to lanthanum is Here, the parameter q tends to unity as symmetry approaches to cubic [18]. The estimated value of q is found to change from 0.989 to 0.990 and is technically constant through the substitution.…”