## Lectures: VI-th Annual Winter School of Theoretical Physics, Karpacz, February 16-March 1, 1969Institute of Theoretical Physics, University of Wrocław, 1969 - Solids |

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Al-Mn alloys anharmonlo annihilation curve anti-unitary antiferromagnetic approximation atoms axis belong black and white Bravais lattice Brillouin zone calculated COCTOHHHH coefficient conduction electrons consider corepresentations coreps correlation corresponding Cracknell critical scattering defining relations denote density derived described determined effect elements equation experimental Fermi level Fermi surface ferromagnetic formula given Green's function group G Hamiltonian Hartree-Fock impurity invariant irreducible representations Kondo Kondo effect Kronecker products localised spin fluctuations magnetic crystals magnetic group magnetic moments magnetic point group magnetic space group magnetic structures magnetio magnon magnon energy matrices momentum neutron non-magnetic obtained ordinary point group orystal paramagnetic parameters particles phase transition phonon physical point group polar positron annihilation possible properties quantum reps single-valued spin-orbit coupling statistical operator superconducting symmetry operations tensor term theoretical theory tion transition metals unit cell unitary subgroup vector wave function white point groups