全电子APW+lo计算磁分子与SIRIUS域特定包的磁性分子
Long Zhang1,2,3, Anton Kozhevnikov4, Thomas Schulthess4
1Department of Physics, University of Florida, Gainesville, Florida 32611, USA.
The Journal of chemical physics
|June 16, 2023
概括
我们将使用SIRIUS包对大型分子系统进行密度函数理论 (DFT) 计算. 这种方法可以为数以百计原子的磁系统实现高精度.
科学领域:
- 计算物理 计算物理
- 材料科学 材料科学 材料科学
- 量子化学 是一个量子化学.
背景情况:
- 准确的电子结构计算对于理解材料特性至关重要.
- 大型分子系统对传统方法构成重大计算挑战.
研究的目的:
- 评估SIRIUS DFT包对于大型分子系统的性能.
- 为了证明SIRIUS在数百个原子的系统上进行准确计算的能力.
主要方法:
- 增强平面波加局部轨道 (APW+lo) 密度函数理论 (DFT) 的计算.
- 使用SIRIUS多功能DFT包及其任务和数据并行性选项.
- 采用先进的固有系统解决器进行基态Kohn-Sham计算.
主要成果:
- 在大型分子系统上,Sirius 包成功执行了 DFT 计算.
- 在地面状态Kohn-Sham计算中证明了性能增长.
- 对于每单元细胞最多有几百个原子的磁性系统的验证准确性.
结论:
- 在大规模的DFT模拟中,SIRIUS套件是有效的.
- 对于复杂的磁性系统,可以保持高精度,而不会影响计算效率.
- 斯里乌斯能够准确研究大型磁分子和金属有机框架.
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