Nuclear Magnetic Resonance of Cl35 in FeCL2

Abstract

This thesis describes an experimental study of the nuclear magnetic resonance spectrum of Cl35 in a single crystal of FeC12. This crystal has an essentially cubic close-packed structure with trigonal distortion and an axially symmetric electric field gradient. The field gradient direction is perpendicular to the layers of Cl atoms which sandwich the layers of Fe atoms. The C135 nucleus, with spin 3/2, has an electric quadrupole moment which interacts with the electric field gradient to cause large splittings of the pure Zeeman levels. There is also a presumably small isotropic and anisotropic paramagnetic shift.