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Study of the negative magnetization effect in NBu_4(Fe~(II)Fe~(III)(OX)_3)

机译:NBu_4(Fe〜(II)Fe〜(III)(OX)_3)的负磁化效应研究

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摘要

Temperature and magnetic-field-dependent magnetization studies of ferrimagnetic NBu_4[Fe~(II)Fe~(III)(OX)_3] are presented in this paper, which demonstrate that the negative magnetization after field-cooling reported previously is observed only in magnetic fields smaller that 5 kOe. In higher fields probably Zeeman energy dominates the ordering energy and destroys the observed negative magnetization. The absolute value of the ferrimagnetic saturation magnetization =0.07#mu#_B which was estimated from the field dependence of the field-cooled magnetization at 5 K. The memory of the field-cooling procedure could not be destroyed by a magnetic field of 55 kOe.
机译:本文介绍了铁磁NBu_4 [Fe〜(II)Fe〜(III)(OX)_3]的温度和磁场相关的磁化强度研究,表明先前报道的磁场冷却后仅出现负磁场。小于5 kOe的磁场。在更高的磁场中,塞曼能量可能会主导有序能量,并破坏观测到的负磁化强度。亚铁磁饱和磁化强度的绝对值= 0.07#mu#_B,该绝对值是根据5 K时的场冷磁化强度的场相关性估算的。场致冷过程的内存不会被55 kOe的磁场破坏。

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