Metastability and giant relaxation across the ferromagnetic to antiferromagnetic transition in Ce (Fe 0.96 Ru 0.04 ) 2
Metastability and giant relaxation across the ferromagnetic to antiferromagnetic transition in Ce (Fe 0.96 Ru 0.04 ) 2
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DOI：
10.1103/physrevb.68.174404
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发表时间：
2003-11
影响因子：
3.7
通讯作者：
M. Chattopadhyay;S. Roy;A. Nigam;K. S. Sokhey;P. Chaddah
中科院分区：
文献类型：
--
作者：
M. Chattopadhyay;S. Roy;A. Nigam;K. S. Sokhey;P. Chaddah
对Ce（Fe 0。96Ru 0 . 0 4）2合金。过渡区的亚稳态导致了大的弛豫，磁化强度没有端点记忆效应。传统的现象学的过冷和过热的程度之间的不对称性观察到的磁化强度的温度和磁场的变化，也证实了弛豫结果。弛豫速率随磁场的不均匀变化给出了相的成核和生长的清晰图像。
Experimental results of magnetization measurements of first-order ferromagnetic-antiferromagnetic transitions in Ce(Fe 0 . 9 6 Ru 0 . 0 4 ) 2 alloy are presented. The metastability of states in the transition region gives rise to large relaxation and lack of end-point-memory effect in the magnetization. Traditional phenomenological asymmetry between the extent of supercooling and superheating is observed in the temperature and magnetic field variation of the magnetization and is also confirmed in relaxation results. Nonuniform variation of the relaxation rate with magnetic field gives a clear picture of the nucleation and growth of phases.