Understanding Fivefold Symmetry in Electron-Diffraction Patterns
Understanding Fivefold Symmetry in Electron-Diffraction Patterns
Electron-diffraction patterns with 5-fold rotational symmetry of experimental alloy phases are assumed to be produced by periodic structures. Two three-dimensional periodic structures are presented based on regular pentagonal dodecahedrons. These structures can be used as atomic models to describe the alloy phases. The Fourier-transform patterns of the models are found to be similar to the corresponding electron-diffraction patterns of these alloy phases. Details of the motivations and approaches that lead to these models are also discussed.<br /><br /><br />
Electron-diffraction patterns with 5-fold rotational symmetry of experimental alloy phases are assumed to be produced by periodic structures. A three-dimensional periodic structures is presented based on two kind polyhedrons. These structures can be used as an atomic model to describe the alloy phases. The Fourier-transform patterns of the models are found to be similar to the corresponding electron-diffraction patterns of these alloy phases along three symmetry directions. Details of the motivations and approaches that lead to these models are discussed.<br /><br /><br /
晶体学物理学
ondensed matter physicsElectron-diffraction5-fold symmetryQuasicrystalRegular pentagonal dodecahedronsPeriodic modelsFourier-transform patterns.
ondensed matter physicsElectron-diffraction5-fold symmetryQuasicrystalTwo kind polyhedronsPeriodic modelsFourier-transform patterns.
.Understanding Fivefold Symmetry in Electron-Diffraction Patterns[EB/OL].(2024-04-22)[2025-05-01].https://chinaxiv.org/abs/202403.00361.点此复制
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