Generalized Drude model and electromagnetic screening in metals and superconductors

doi:10.1088/1674-1056/27/5/057401

中国物理B ›› 2018, Vol. 27 ›› Issue (5): 57401-057401.doi: 10.1088/1674-1056/27/5/057401

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Generalized Drude model and electromagnetic screening in metals and superconductors

Da Wang(王达)

National Laboratory of Solid State Microstructures & School of Physics, Nanjing University, Nanjing 210093, China

收稿日期:2018-01-26 修回日期:2018-03-05 出版日期:2018-05-05 发布日期:2018-05-05
通讯作者: Da Wang E-mail:dawang@nju.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No.11504164).

Generalized Drude model and electromagnetic screening in metals and superconductors

Da Wang(王达)

National Laboratory of Solid State Microstructures & School of Physics, Nanjing University, Nanjing 210093, China

Received:2018-01-26 Revised:2018-03-05 Online:2018-05-05 Published:2018-05-05
Contact: Da Wang E-mail:dawang@nju.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No.11504164).

摘要/Abstract

摘要：

Electromagnetic screening is studied from the perspective of fluid mechanics by generalizing the Drude theory, which unifies three known results:Thomas-Fermi screening of the longitudinal field in both metals and superconductors, the skin effect of the transverse field in metals, and the Meissner effect in superconductors. In the special case of superfluid electrons, we slightly generalize the London equations to incorporate the longitudinal electric fields. Moreover, regarding the experiments, our study points out that the dynamical measurement may overestimate the superfluid density.

关键词: electromagnetic screening, Thomas-Fermi screening, London penetration depth, Meissner effect

Abstract:

Key words: electromagnetic screening, Thomas-Fermi screening, London penetration depth, Meissner effect

中图分类号: (Response to electromagnetic fields)

74.25.N-

74.20.De (Phenomenological theories (two-fluid, Ginzburg-Landau, etc.)) 74.25.Gz (Optical properties) 71.10.Ca (Electron gas, Fermi gas)

王达. Generalized Drude model and electromagnetic screening in metals and superconductors[J]. 中国物理B, 2018, 27(5): 57401-057401.

Da Wang(王达). Generalized Drude model and electromagnetic screening in metals and superconductors[J]. Chin. Phys. B, 2018, 27(5): 57401-057401.

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Generalized Drude model and electromagnetic screening in metals and superconductors

Generalized Drude model and electromagnetic screening in metals and superconductors

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