Enhanced Pseudo Nuclear Quadrupole Interaction and Nuclear Magnetism in Praseodymium Metal

Abstract

Nuclear magnetic properties of the single crystal (paramagnetic) and the polycrystal (ordered) praseodymium metal are discussed by using the effective nuclear spin Hamiltonian recently derived by the author. The Hamiltonian can explain the anomalous nuclear specific heat of the single crystal praseodymium metal as well as the magnitude of the nuclear Curie temperature found in this crystal in a consistent way. Informations can also be obtained for the low-lying states of the 4f electrons.