Density fluctuations in α-decay self-irradiated zircon
Density fluctuations in α-decay self-irradiated zircon
复制标题
α衰变自辐照锆石的密度涨落
DOI：
10.1063/1.1667260
复制
发表时间：
2004
影响因子：
4
通讯作者：
E. Salje
中科院分区：
文献类型：
--
作者：
S. Ríos;E. Salje
测量了一系列天然锆石从全结晶到全非晶的小角X射线散射强度，证明了α衰变自辐射产生的非晶相中的纳米级密度起伏。在低非晶组分(p0.8)，在Q=3 nm−1处出现一个峰，表明存在直径为1 nm的区域，该区域与周围的基质形成高密度对比。密度波动用纳米尺寸的空隙来解释。
Small-angle x-ray scattering (SAXS) intensities measured in a series of natural zircons, from fully crystalline to fully amorphous, give evidence for nanoscale density fluctuations within the amorphous phase produced by α-decay self-irradiation. At low amorphous fractions (p 0.8) a peak at Q=3 nm−1 develops, indicating the presence of 1 nm diameter regions that show a high-density contrast with the surrounding matrix. Density fluctuations are interpreted in terms of nanometer size voids.