Electron spin resonance study of proton-irradiation-induced defects in graphite

被引：13
作者：
Lee, Kyu Won [1 ]
Kweon, H.
Kweon, J. J.
Lee, Cheol Eui
机构：
[1] Korea Univ, Dept Phys, Seoul 136713, South Korea
来源：
JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 04期
关键词：
crystal defects; ferromagnetic materials; graphite; paramagnetic resonance; proton effects;
D O I：
10.1063/1.3305334
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Electron spin resonance measurements of proton-irradiated graphite have revealed detailed nature of proton-irradiation-induced defects. Our results indicate that proton-irradiation creates confined defect regions of a metallic island surrounded by an insulating magnetic region which "isolates" the metallic island inside from the metallic graphite background outside. We have thus come up with a picture of phase separation in proton-irradiated graphite comprising three regions of distinct electrical and magnetic properties.
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页数：3
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