Studies of $\mu^+$ Localization in Cu, Al and Al Alloys in the Temperature Interval 0.03-$K$ - 100-$K$

Studies of $\mu^+$ Localization in Cu, Al and Al Alloys in the Temperature Interval 0.03-$K$ - 100-$K$
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0.03-$K$ - 100-$K$温度区间内铜、铝和铝合金$mu^$局域化的研究

DOI:
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发表时间:
1980
期刊:
影响因子:
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通讯作者:
J. L. Héricy
J. L. Héricy
中科院分区:
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文献类型:
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作者:
O. Hartmann;E. Karlsson;L. Norlin;T. Niinikoski;K. Kehr;D. Richter;J. Welter;A. Yaouanc;J. L. Héricy

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对最纯的 Al 和 Cu 样品以及 AlMn/sub x/(x=1300、57 和 42 ppm)的 μ 子自旋旋转研究(温度降至 50 mK 左右)表明,μ 子在纯 Al 中是离域的,但随着 Mn 含量的增加而越来越局域化。从应变局部化和杂质附近的捕获方面讨论了温度变化。对于 Cu,在低于 2 K 时观察到部分离域,这可能受到剩余杂质的弹性应变的限制。
Muon spin-rotation studies on the purest available samples of Al and Cu and on AlMn/sub x/ (x=1300, 57, and 42 ppm) down to temperatures around 50 mK show that the muons are delocalized in pure Al but increasingly localized with increasing Mn content. The temperature variations are discussed in terms of strain localization and trapping in the vicinity of the impurities. For Cu, partial delocalization is observed below 2 K, which is probably limited by elastic strains from remaining impurities.