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Physics 250-06 “Advanced Electronic Structure” Lecture 7.1. Response to Time-Dependent Fields Contents: 1. Time-Dependent DFT and Linear Response. 2. Response to Magnetic Fields and Dynamical Susceptibilities 3. Applications to Fe, Ni, Cr
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Physics 250-06 “Advanced Electronic Structure” Lecture 7.1. Response to Time-Dependent Fields Contents: 1. Time-Dependent DFT and Linear Response. 2. Response to Magnetic Fields and Dynamical Susceptibilities 3. Applications to Fe, Ni, Cr 4. Response to electromagnetic fields: optical properties 5. Optical Properties of Metals and HTSCs
Response to Electric Fields. Similar Discussion can be consdered: General Difficulty: non-periodic potential, when q->0 it produces infinite field. Static limit in insulators determines static dielectric constant e0.
Response to Electromagnetic Fields. Transverse response to Transverse dielectric function is determined as follows Dispersion relations for the photon in the media
Response to Electromagnetic Fields. Optical Response Functions Optical Conductivity Reflectivity