Analysis of ¹¹B-NMR in Phase II of CeB₆

Abstract

We analyze the angular dependence of the resonance field of ¹¹B-NMR spectrum with respect to the magnetic field in phase II of CeB₆. The experimental results are well explained as a sum of the magnetic dipolar and the transferred hyperfine field from the Ce site. The latter is the microscopic origin of the hyperfine field from the octupolar moment introduced phenomenologically. It is shown that the unusual temperature and magnetic field dependence of the resonance field at low fields in phase II originates from that of the antiferromagnetic moment through the the dipolar field and is consistent with the neutron scattering results.