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[交流]
【求助】關(guān)于thermopower
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剛剛接觸這個(gè),下面一段話載自wiki Typically metals have small thermopowers because most have half-filled bands. Electrons (negative charges) and holes (positive charges) both contribute to the induced thermoelectric voltage thus canceling each other's contribution to that voltage and making it small. 我不大理解 canceling each other's contribution to that voltage , 空穴和電子在實(shí)空間不是相反方向運(yùn)動(dòng)嗎,產(chǎn)生的電勢(shì)等方向應(yīng)該一致才是啊,怎么會(huì)互相抵消呢? 希望大伙給我講講怎么理解這段話,謝謝 [ Last edited by njuxyh on 2010-7-14 at 17:08 ] |
找到一些相關(guān)的精華帖子,希望有用哦~
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