Low Temperature Physics & Chemistry: Proceedings, Volume 13, Part 2

agreement alloys anisotropy anomaly antiferromagnetic approximation atoms axis behavior calculated cell cm³ cm³/mole concentration constant correlation corresponding critical crystal D₂ Debye Debye-Waller factor decrease density determined dilute effect electrons energy entropy equation exchange experimental experiments factor Fermi ferromagnetic film frequency H₂ Hamiltonian heat capacity Heisenberg model helium increases interaction Ising model Kondo lattice Lett linewidth liquid Low Temp low temperatures magnetic field magnetic impurities magnetic moment magnetic susceptibility measurements melting curve metal molar volume molecules neutron nonmagnetic nuclear observed obtained paramagnetic parameter peak phase boundary phase transition phonon Phys plotted polarization range region relaxation resistivity resonance sample scaling function scattering shown in Fig shows solid ³He solid helium specific heat spectrum spin structure superconducting T₁ temperature dependence term theoretical theory thermal transition temperature values velocity zero