Systems:Arbitrary ordered and disordered three-dimensional periodic systemsSurfaces in cluster or slab approximation Calculation Modes:Non-relativistic: Standard calculations for general systems.Scalar-relativistic: Includes treatments for paramagnetic and spin-polarized systems, non-collinear spin structures, and arbitrary spin spirals.Fully relativistic: Handles paramagnetic and spin-polarized systems with arbitrary spin configurations. Electronic Properties:Self-Consistent Field (SCF) potentialDispersion relationBloch spectral functionDensity of states Ground State Properties:Spin and orbital momentsHyperfine fieldsMagnetic form factors Response Functions:Spin and orbital susceptibilityKnight shiftField-induced magnetic Compton scatteringResidual resistivity of alloys Spectroscopic Properties:Valence band photoemissionCore level photoemissionNon-relativistic appearance potential spectroscopyNon-relativistic and fully relativistic Auger electron spectroscopyX-ray absorption, emission, magneto-optics, and scatteringMagnetic Compton scattering