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zhanping

金虫 (正式写手)

[求助] Castep计算晶胞红外谱问题

以前理解castep计算晶胞能量和红外是在0K下,但是
“Calculation is not computed at 0K. Temperature is not considered at all but only the ground state is considered”审稿人如是说,请教大家!
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贺仪

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zzy870720z(金币+2): 鼓励交流讨论 2011-09-14 17:55:12
zhanping(金币+4): 谢谢! 2011-09-15 00:10:12
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个人理解:
晶胞计算应该是0k的,里面没有考虑原子的振动
但是红外是根据电荷密度得出的原子之间的振动频率,这应该要加上扰动才行,所以应该不是0K的
嘟啦啦嘟啦啦嘟
2楼2011-09-14 14:12:05
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guolianshun

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引用回帖:
1楼: Originally posted by zhanping at 2011-09-14 10:34:57:
以前理解castep计算晶胞能量和红外是在0K下,但是
“Calculation is not computed at 0K. Temperature is not considered at all but only the ground state is considered”审稿人如是说,请教大家!

怎么算红外呀,选择在哪里?谢谢
3楼2011-09-14 16:36:29
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zhanping

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youzhizhe(金币+1): 谢谢交流。 2011-09-15 12:12:25
引用回帖:
3楼: Originally posted by guolianshun at 2011-09-14 16:36:29:
怎么算红外呀,选择在哪里?谢谢

在property里面选IR
4楼2011-09-15 00:09:55
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