XAS as conductivity tensor Maurits W Haverkort Institute

XAS as conductivity tensor/ Maurits W. Haverkort Institute for theoretical physics, Heidelberg University, Heidelberg, Germany M. W. Haverkort@thphys. uni-heidelberg. de

Sum rules for linear dichroism: orbital occupation

XAS and the conductivity tensor (s) – an example for s to p Real Imaginary Absorption –Im[s] w 0 (in Landau Lifschitz absorption is Re[s])

But the conductivity tensor (s) is a TENSOR

But the conductivity tensor (s) is a TENSOR Absorption –Im[e. s. e]

But the conductivity tensor (s) is a TENSOR Spectrum measured with x-polarized light

But the conductivity tensor (s) is a TENSOR Spectrum measured with y-polarized light

But the conductivity tensor (s) is a TENSOR Spectrum measured with z-polarized light

But the conductivity tensor (s) is a TENSOR Spectrum measured with (y+z)-polarized light

But the conductivity tensor (s) is a TENSOR Spectrum measured with (y+z)-polarized light ½

But the conductivity tensor (s) is a TENSOR Spectrum measured with (y+z)-polarized light ½

But the conductivity tensor (s) is a TENSOR Spectrum measured with (y+z)-polarized light ½

But the conductivity tensor (s) is a TENSOR Spectrum measured with (y+z)-polarized light ½

The conductivity tensor (s) in cubic symmetry

The conductivity tensor (s) in tetragonal symmetry

The conductivity tensor (s) in orthorhombic symmetry

The conductivity tensor (s) in monoclinic symmetry

The conductivity tensor (s) in triclinic symmetry

The conductivity tensor (s) in magnetic materials

The conductivity tensor (s) in magnetic materials