Study of Y-type Hexaferrite by Means of ^{57}Fe NMR and Electronic Structure Calculations

Abstract

The electron structure and site preferences of Zn and Fe cations in Y hexaferrite system were calculated. The hyperne magnetic elds on 57 Fe nuclei were determined using WIEN2k and corrections for hyperne contact interaction. The calculated elds were compared to 57 Fe nuclear magnetic resonance (NMR) experiment in Ba2Zn2Fe12O22 single crystal with an aim of interpretation of experimental NMR spectrum.