NQR determination of local magnetic fields in senarmonite (Sb2O3)

The magnitude and direction of the local magnetic field strength (Hloc) at the atomic nuclei of the resonant atom (121Sb and 123Sb NQR in senarmonite, Sb2O3) for the (12–32) transition has been determined using spin-echo ‘beats’. We suggest criteria which permit the differentiation of the effect of spin-spin interactions from the Hloc effect.