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xiaomao_16銀蟲 (小有名氣)
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[求助]
NVT正則系綜做AIMD,SMASS和ANDERSON_PROB怎么設(shè)置
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如題,想計算一個正則系綜,一個slab+水盒子的構(gòu)型,請問熱浴(thermostat)的選擇一般是怎么選的呢? 看到之前的帖子說Nose-Hoover的控溫比較好,但是SMASS要怎么取呢,根據(jù)VASP手冊寫的要去算聲子?但是也沒給算出來聲子怎么轉(zhuǎn)化成SMASS? 同理,如果選Anderson熱浴的話,ANDERSON_PROB怎么選呢? 這是VASP-wiki上的解釋,但感覺只解釋了這兩個參數(shù)的意義,對怎么選取還是不是很明了: 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. 還請各位不吝賜教 |
銀蟲 (小有名氣)
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