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xiaomao_16

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[求助] NVT正则系综做AIMD,SMASS和ANDERSON_PROB怎么设置

如题,想计算一个正则系综,一个slab+水盒子的构型,请问热浴(thermostat)的选择一般是怎么选的呢?
看到之前的帖子说Nose-Hoover的控温比较好,但是SMASS要怎么取呢,根据VASP手册写的要去算声子?但是也没给算出来声子怎么转化成SMASS?
同理,如果选Anderson热浴的话,ANDERSON_PROB怎么选呢?


这是VASP-wiki上的解释,但感觉只解释了这两个参数的意义,对怎么选取还是不是很明了:

SMASS:The Nosé-mass should be set such that the induced temperature fluctuation show approximately the same frequencies as the typical 'phonon'-frequencies for the specific system.
ANDERSON_PROB: The collision probability is defined as an average number of collisions per atom and time-step. This quantity can be controlled by the flag ANDERSEN_PROB.

还请各位不吝赐教
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2楼2021-06-01 16:56:38
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3楼2021-06-02 10:12:11
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