Iron garnet films with enhanced thermal stability of their magnetic parameters

Dispersion of the magnetostatic volume waves in a medium with damping

“…It is well-known that YIG films exhibit strong temperature instability, which can be caused by a number of factors [12]. In our model, the effect of temperature reduces to the fact that the normalized frequencies of the waves Ω and the magnetic fields Ω H , determined by the relations (8), shift up with changing T .…”

“…In the temperature range T from 213 K to 353 K the function 4πM(T ) can be approximated by a linear dependence, and tangent of the slope angle is equal to −2.9 G/K [12]. Thus, with the temperature decreasing from T = 300 K to T = 273 K, the saturation magnetization increases from 1760 G to 1840 G.…”

Study on Pr-Substituted Bismuth-Iron Garnet Crystallite and its Magnetism

“…Recently, iron garnet has attracted a renewed interest due to several spectacular discoveries of gigantic magnetoelectric effects [induction of polarization by H or of magnetization by E and magnetodielectric effects H-induced change in dielectric constant in these materials] [1][2][3][4][5]. Iron garnet-structured ferrites have been applied in microwave devices since microwave ferrite devices require more and more materials whose magnetic and dielectric losses are decisive from the standpoint of their utilization [6,7]. Moreover, iron garnets are also used in magnetic recording media [8] and various magneto-optical devices including the realization of optical isolators, circulators and magneto-optic (MO) visualizers [9,10].…”