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gfunction木蟲 (小有名氣)
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[求助]
審稿人建議:關(guān)于化學(xué)勢和表面吸附計(jì)算的關(guān)系
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論文內(nèi)容是計(jì)算單個(gè)原子在表面的吸附 E_adsorption=E_substrate + E_adatom – E_total (Eq.1) 結(jié)果都是基于以上公式計(jì)算 審稿人意見是 Energy differences [Eq.(1)] are important but they are not the relevant parameter when comparing the thermodynamic stability of different configurations. It is immediately clear that at least the chemical potentials for adatom will play an important role here (see e.g. Zhang and Northrup, Phys. Rev. Lett. 67, 2339); this should be discussed and clarified. 他的大概意思是問為何沒有討論化學(xué)勢,理由是化學(xué)勢對(duì)與表面擴(kuò)散起重要作用。 但是在看過審稿人給出的參考文獻(xiàn)(Phys. Rev. Lett. 67, 2339)這里面講的并不是吸附的計(jì)算而是關(guān)于自擴(kuò)散(self-diffusion). 關(guān)于計(jì)算吸附的很多參考文獻(xiàn)都并沒有考慮化學(xué)勢。對(duì)于這個(gè)問題我該怎么回答呢??? 謝謝各位!! |
計(jì)算科學(xué)經(jīng)驗(yàn)總結(jié) |
鐵桿木蟲 (著名寫手)

木蟲 (小有名氣)
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僅供樓主參考。 The authors would like to thank the reviewers for insightful comments. As the reviewer point out (see Zhang and Northrup), chemical potential do play an important role in the thermodynamic stability of the native defects studies in semiconductor (GaAs). And the authors have add one sentence to discuss the importance of chemical potential in thermodynamic stability(cite that paper). However, the objective of this paper is to study the adsorption of ..., in which the chemical potential study for thermodynamic stability is not applicable and absorption energy study is sufficient. |
木蟲 (小有名氣)
木蟲 (著名寫手)
木蟲 (小有名氣)
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3樓正解,審稿人是讓你計(jì)算實(shí)驗(yàn)溫度和分壓下的吸附能,讓DFT結(jié)果更有意義。這種方法也叫ab initio thermodynamic, 最早由Matthias Scheffler組提出, 參見: http://arxiv.org/pdf/cond-mat/0107229.pdf 計(jì)算化學(xué)勢沒有那么復(fù)雜,只是在原有吸附能基礎(chǔ)上加上溫度和分壓的修正而已,樓主不要擔(dān)心。 |

木蟲 (小有名氣)

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