Zero-field spin relaxation of positive muon in Al-Mg
Zero-field spin relaxation of positive muon in Al-Mg
复制标题
Al-Mg 中正 μ 子的零场自旋弛豫
DOI：
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发表时间：
1984
期刊：
影响因子：
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通讯作者：
K. Nagamine
中科院分区：
文献类型：
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作者：
E. Sato;T. Hatano;Y. Suzuki;M. Imafuku;M. Sunaga;M. Doyama;Y. Morozumi;T. Suzuki;K. Nagamine
在34~120K的零外场下，测量了Al-Mg稀合金中的介子自旋弛豫，并将观测到的谱与同时考虑俘获和脱陷机制的二态模型的自旋弛豫函数进行了拟合。因此，Al中存在杂质陷阱时的介子行为能够被可视化：一个介子在一个声子辅助的非相干跳跃过程中扩散，然后在扩散控制过程中被一个陷阱捕获，并在热激活过程中解禁。
The muon spin relaxation in the Al-Mg dilute alloy was measured under the zero external field from 34 to 120 K, and the observed spectra were fitted to the calculated spin relaxation function of the two state model which is taking account of both trapping and detrapping mechanisms. Thus, the muon behavior in Al in the presence of impurity traps were able to be visualized: a muon diffuses in the incoherent hopping process with one phonon assistance, while it is then captured by a trap in a diffusion control process, and detrapped in the thermal activation process.