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arXiv 1105.2200cond-mat.str-el
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Ca3Co2O6部分磁化平台的动态场

Dynamic fields in the partial magnetization plateau of Ca3Co2O6

P. J. Baker, J. S. Lord, D. Prabhakaran

摘要:

磁化平台中的波动动力学在阻挫磁性中是一个相对较少探索的领域。在这里,我们使用μ子自旋弛豫,以确定在部分磁化平台的Ca3Co2O6的波动时间尺度和相关的场分布宽度。μ子自旋弛豫速率具有简单而特征的场依赖性,我们模拟了这种依赖性,并通过拟合15 K下的数据提取了涨落时标τ = 880(30)ps和场分布宽度Delta = 40.6(3)mT。与以前的结果Ca3Co2O6的比较表明,这种波动的时间尺度可以与短程,缓慢波动的磁序。

英文摘要:

Fluctuation dynamics in magnetization plateaux are a relatively poorly explored area in frustrated magnetism. Here we use muon spin relaxation to determine the fluctuation timescale and associated field distribution width in the partial magnetization plateau of Ca3Co2O6. The muon spin relaxation rate has a simple and characteristic field dependence which we model and by fitting to the data at 15 K extract a fluctuation timescale tau = 880(30) ps and a field distribution width Delta = 40.6(3) mT. Comparison with previous results on Ca3Co2O6 suggests that this fluctuation timescale can be associated with short-range, slowly fluctuating magnetic order.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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