Distribution of nuclear quadrupole splittings in amorphous materials and the topology of the (V_zz, η)-parameter space

Abstract

In structural investigations of amorphous materials by determination of nuclear quadrupole splittings, the connectivity of the region of non-zero probability density in the space of the splitting parameters V_zz and η is important. The conventional presentation of the parameter plane conceals the continuous connection between regions of positive and negative V_zz via the common boundary defined by η=1. A new conceptual view of the (V_zz, η)-plane is proposed which clearly expresses its topological structure.