Temperature-Dependent Magnetic Properties of Bismuth Substituted Terbium–Iron Garnets

Low‐Temperature Magnetic and Dielectric Anomalies in Rare‐Earth‐Substituted BiFeO3 Ceramics

“…and by the temperature at which the magnetization shows a minimum, may correspond to the compensation temperature. The magnetization minima for Bi 1– x Tb x FeO 3 samples ( x = 0.25 and 0.3) are consistent with the compensation temperature obtained for bismuth‐substituted terbium‐iron garnets (Tb 1– y Bi y )IG (~ 170 K for y = 0.5 and 120 K for y = 1) . The substitution‐induced increase in the “compensation” temperature of Bi 1– x RE x FeO 3 ( x ≥ 0.2) ceramics can be explained by the increased moment that might result in the weaken RE 3+ interaction at higher temperatures.…”

Structural and magnetic characteristics of bismuth substituted holmium iron garnet

“…The T N of RE iron garnets is in the rigion of 560 K [14]. [9]. By bismuth substitution, T N increases approximately as much 100 K. As such this raise of T N is attributed to the influence of the Bi ions on the super-exchange interaction between a-d sublattices [6].…”

“…Considering the FC curves and the coercivity values together, the negative magnetization is attributed to the large coercivity at T comp . These unusual magnetic property is attributed to the strong local anisotropy for each iron sub-lattices result from Bi-Fe covalence effect [9]. Fig.…”

“…Intricate behaviour of the elastic properties as a function of temperature between 4.2 and 300 K has been observed and ascribed to the combined effects of the appearance of a double-umbrella magnetic structure and a rhombohedral lattice distortion that sets in below the compensation temperature [8]. The materials related to the negative magnetization have been reported that the net magnetization has negative value at low temperature under field cooled condition for Tb 2 Bi 1 Fe 5 O 12 [9], and Ho(Fe 0.6 Mn 0.4 ) 12 system [10]. We observed negative magnetization below the compensation temperature in Ho 2 Bi 1 Fe 5 O 12 under field cooled condition.…”

High field magnetic anisotropy in praseodymium gallium garnet at low temperatures

“…In recent years, much attention has been paid to the study on physical characteristics of these magneto-optical rare-earth garnets under extreme conditions (in high magnetic field and at low temperatures) [1][2][3][4]. And, some novel experimental phenomena on magnetic properties of these materials under extreme conditions have been revealed, such as, magnetic anisotropy, temperature-dependence characteristic, magnetic saturation, and nonlinear field-dependence property [5,6].…”