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Cluster model calculation of N near K-edge energy-loss fine structures in hexagonal GaN crystal |
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| Authors: | GAO Shangpeng ZHANG Weihua LI Jiaming ZHU Jing |
| Institution: | 1. Electron Microscopy Laboratory, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China; 2. Department of Physics, Center for Atomic and Molecular Nanosciences, Tsinghua University, Beijing 100084, China; 3. Department of Physics, Center for Atomic and Molecular Nanosciences, Tsinghua University, Beijing 100084, China;Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China 4. Electron Microscopy Laboratory, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China |
| Abstract: | A cluster model is used to calculate electron energy-loss fine structures in crystal. The multiple-scattering self-consistent-field method is employed in the calculation. Our theoretical results of N near K-edge energy loss fine structures in hexagonal GaN crystal are in good agreement with the experimental spectra. Future possible experiments in energy-filtered transmission electron microscopy (EFTEM) are discussed and proposed because our theoretical work can provide clear assignments for transmitted electrons with different energy losses. |
| Keywords: | cluster model multiple-scattering self-consistent-field GaN energy-loss fine structure energy-filtered image |
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