Energy dissipation in insulators induced by swift heavy ions: A parameter study
Energy dissipation in insulators induced by swift heavy ions: A parameter study
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快重离子引起的绝缘体能量耗散：参数研究
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
M. Schleberger
中科院分区：
文献类型：
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作者：
Omair Osmani;H. Lebius;B. Rethfeld;M. Schleberger
用高能激光或粒子束照射固体可以更深入地了解目标材料内部的弛豫过程。然而，仍有许多悬而未决的问题。在本文中，我们将在双温度模型框架内检查模型系统Xe23+ @ 93 MeV→SrTiO3的辐照，并研究电子声子耦合g和电子扩散率De以及晶格扩散率Dp。这些是没有实验数据的关键参数。在实验上，g 很难测量，因此理论预测非常重要。利用此处介绍的方法，可以将耦合常数确定一个数量级。
The irradiation of solids with high energy laser or particle beams has led to a deeper understanding of the relaxation processes inside the target material. However, a lot of open questions remain. In the present paper, we will examine the irradiation of the model system Xe23+ @ 93 MeV → SrTiO3 within the framework of the two-temperature-model and study the electron-phonon-coupling g and the electron diffusivity De as well as the lattice diffusivity Dp. These are crucial parameters for which no experimental data is available. Experimentally, g is very difficult to measure and therefore theoretical predictions are of great importance. With the approach presented here it is possible to determine the coupling-constant by one order of magnitude.