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135791yx@

新虫 (小有名气)

[求助] 声子谱虚频 已有1人参与

声子谱出现虚频,有什么办法能够消去,虚频大约在-40 左右

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rlafite

至尊木虫 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
optimize the lattice structure before you do phonon computation
2楼2024-12-04 00:26:08
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fgmsyutong

木虫 (文坛精英)

原胞,高精度几何优化
3d104s1
3楼2024-12-05 15:00:50
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渊启

新虫 (初入文坛)

1、高精度优化原胞;
2、扩到足够大的超胞;;
3、移动虚频点到gamma点,然后再进行上面两步,有可以解决虚频。
4楼2025-11-11 15:27:52
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