Positive mouns in iron: Dipolar fields at tetrahedral sites and jump frequencies at low temperatures
Hyperfine Interactions(1986)
摘要
On polycrystalline and monocrystalline iron muon-spin precession frequencies and transverse relaxation rates have been measured
down to 0.5 K. In the polycrystalline sample two distinct precession frequencies were observed at and below 1.4 K. They are
attributed to the different dipolar fields at magnetically inequivalent tetrahedral interstices seen by muons moving locally
around impurities. By contrast, in monocrystalline iron we observed only one precession frequency in monocrystalline iron
with a damping rate which increased with decreasing temperature down to 0.5 K. We attribute the difference between the monocrystalline
and the polycrystalline sample to different impurity contents. The single-crystal data are discussed in terms of μ+ diffusion by hopping between interstitial sites of tetragonal symmetry. The answer to several open questions is expected
from an extension of the measurements to lower temperatures.
更多查看译文
关键词
iron,single crystal
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要