Normalization factors for magnetic relaxation of small-particle systems in a nonzero magnetic field
Normalization factors for magnetic relaxation of small-particle systems in a nonzero magnetic field
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DOI：
10.1103/physrevb.55.8940
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发表时间：
1997-04
影响因子：
3.7
通讯作者：
L. Balcells;Ò. Iglesias;Amilcar Labarta Institut de Ciencia de Materials de Barcelona-CSIC-Amilcar-Labarta-Institut-de-Ciencia-de-Materials-de-1422263517;Campus Uab;Bellaterra;Spain. Departament de F'isica Fonamental;Facultat de F'isica;U. Barcelona;Spain.
中科院分区：
文献类型：
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作者：
L. Balcells;Ò. Iglesias;Amilcar Labarta Institut de Ciencia de Materials de Barcelona-CSIC-Amilcar-Labarta-Institut-de-Ciencia-de-Materials-de-1422263517;Campus Uab;Bellaterra;Spain. Departament de F'isica Fonamental;Facultat de F'isica;U. Barcelona;Spain.
我们批判性地讨论弛豫实验的磁系统，其特征在于在一个能量势垒分布，显示适当的归一化的弛豫数据是需要的，每当对应于不同温度的曲线进行比较。我们展示了这些归一化因子可以通过使用Tln（t/t0）标度方法从实验数据中获得，而无需对能垒分布的性质进行任何假设。使用Fe 3 O 4颗粒的铁磁流体的程序的有效性进行了测试。@S0163-1829~97！04113-1#
We critically discuss relaxation experiments in magnetic systems that can be characterized in terms of an energy barrier distribution, showing that proper normalization of the relaxation data is needed whenever curves corresponding to different temperatures are to be compared. We show how these normalization factors can be obtained from experimental data by using the Tln(t/t0) scaling method without making any assumptions about the nature of the energy barrier distribution. The validity of the procedure is tested using a ferrofluid of Fe3O4 particles. @S0163-1829~97!04113-1#