Multiple scattering calculations of relativistic electron energy loss spectra

K. Jorissen; J. J. Rehr; J. Verbeeck

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Multiple scattering calculations of relativistic electron energy loss spectra

机译：相对论电子能量损失谱的多重散射计算

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摘要

A generalization of the real-space Green's-function approach is presented for ab initio calculations of relativistic electron energy loss spectra (EELS) which are particularly important in anisotropic materials. The approach incorporates relativistic effects in terms of the transition tensor within the dipole-selection rule. In particular, the method accounts for relativistic corrections to the magic angle in orientation resolved EELS experiments. The approach is validated by a study of the graphite C K edge, for which we present an accurate magic angle measurement consistent with the predicted value.

机译：提出了实空间格林函数方法的一般化方法，用于相对论电子能量损失谱（EELS）的从头计算，这在各向异性材料中尤其重要。该方法在偶极选择规则内的过渡张量方面结合了相对论效应。尤其是，该方法考虑了定向解析EELS实验中对魔角的相对论校正。通过对石墨C K边缘的研究验证了该方法，为此我们提供了与预测值一致的精确魔角测量。

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来源
《Physical review》 |2010年第15期|155108.1-155108.6|共6页
作者
K. Jorissen; J. J. Rehr; J. Verbeeck;
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作者单位

Department of Physics, University of Washington, Seattle, Washington 98195, USA;

rnDepartment of Physics, University of Washington, Seattle, Washington 98195, USA;

rnEMAT, University of Antwerp, Groenenborgerlaan 171, B2020, Antwerp, Belgium;

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原文格式 PDF
正文语种 eng
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关键词
electron energy loss spectroscopy; excited states: methodology; relativistic effects;

机译：电子能量损失谱;激发态：方法论相对论效应;

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2. Electronic structure of MgS and MgYb2S4: Electron Energy-Loss Spectroscopy and self-consistent multiple scattering calculations [J] . Moreno M. S., Urones-Garrote Esteban, Otero-Diaz L. C. Micron: The international research and review journal for microscopy . 2015,第Null期

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4. Ab initio Real Space Calculations of Electron Energy Loss Spectra [C] . A. P. Sorini, J. J. Rehr, K. Jorissen International Conference on Electron Microscopy and Multiscale Modeling . 2008

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7. Real Space Multiple Scattering Calculations of Relativistic Electron Energy Loss Spectra [O] . Jorissen, K., Rehr, J. J. 2007

机译：相对论电子的实空间多重散射计算能量损失谱
8. Calculations of Energy Loss, Range, Pathlength, Straggling, Multiple Scattering, and the Probability of Inelastic Nuclear Collisions for 0.1-to 1000-Mev Protons [R] . Janni, J. F. 1966

机译：能量损失，范围，路径长度，交错，多重散射以及0.1至1000-mev质子的非弹性核碰撞概率的计算

Multiple scattering calculations of relativistic electron energy loss spectra

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