Metal - - screening screening Metal Thomas-Fermi (static) screening potential of point charge Fourier Coulomb renormalize Fourier - + Yukawa -
Metal - - screening screening Metal static dielectric function singularity at 2k F dielectric function in 3D 1D 2D 3D singular at 2k F , unlike small-q approximation
Metal - - screening screening Metal Friedel oscillation point charge charge redistribution 2x integration by parts most singular part
Metal - - screening screening Metal Friedel oscillation oscillations
Metal - - screening screening Metal Friedel oscillation scanning tunneling microscope - pictures quantum corral by Fe-atoms on Cu surface NTT: report 2000 - 2D semiconductor surface D. Eigler, IBM Almaden total charge cloud point charge at completely compensated
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