| 谈谈金属电导率的经典理论 |
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| 引用本文： | 张婷,吴伟,李承祖,陆彦文.谈谈金属电导率的经典理论[J].大学物理,2011,30(1):29-30,41. |
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| 作者姓名： | 张婷 吴伟 李承祖 陆彦文 |
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| 作者单位： | 国防科学技术大学理学院物理系; |
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| 摘 要： | 在金属导电经典微观图像中,自由电子和晶格正离子的碰撞符合泊松流要求的条件,因此碰撞时间间隔服从指数分布.简明地推导出了与微分形式的焦耳-楞次定律自洽的金属电导率表达式.
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| 关 键 词： | 金属电导率 泊松流 |
On the classical theory of metallic electric conductivity |
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| ZHANG Ting,WU Wei,LI Cheng-zu,LU Yan-wen.On the classical theory of metallic electric conductivity[J].College Physics,2011,30(1):29-30,41. |
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| Authors: | ZHANG Ting WU Wei LI Cheng-zu LU Yan-wen |
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| Institution: | ZHANG Ting,WU Wei,LI Cheng-zu,LU Yah-wen(Department of Physics,Science College,National University of Defense Technology,Changsha,Hunan 410073,China) |
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| Abstract: | In the classical microscopic picture of metal conduction,the collision between free electrons and positive ions satisfies three requirements of Poisson flow,thus the time interval between the collisions obeys an exponential distribution.The expression of metallic electric conductivity is concisely given.Hereby the Joule-Lenz law in differential form is derived self-consistently. |
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| Keywords: | metallic electric conductivity Poisson flow |
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