The effect of an external constant magnetic field on the dielectric properties and magnetodielectric (MD) coupling in La_0.4Eu_0.1Ca_0.5MnO₃ polycrystalline manganite at room temperature (RT) has been investigated. This sample exhibits negative colossal MD values under low applied magnetic fields (− 30% and − 45% under applied fields of 0.6 T and 1.2 T, respectively). The colossal MD values as well as the relatively low dielectric loss values suggest that the La_0.4Eu_0.1Ca_0.5MnO₃ sample can be a suitable␣candidate for technological applications at RT, like magnetic field sensing and gyrators.

中文翻译：

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La 0.4 Eu 0.1 Ca 0.5 MnO 3锰合金中的室温巨大磁介电效应

研究了外部恒定磁场对室温（RT）下La _0.4 Eu _0.1 Ca _0.5 MnO ₃多晶锰矿中介电性能和磁电耦合的影响。该样品在低磁场下显示负的巨大MD值（在0.6 T和1.2 T的磁场下分别为-30％和-45％）。巨大的MD值以及相对较低的介电损耗值表明，La _0.4 Eu _0.1 Ca _0.5 MnO ₃样品可能是适用于RT技术应用（例如磁场感应和回转仪）的合适候选材料。