Sb-121-NMR studies of single-crystal PrOs4Sb12

摘要

Sb-121 nuclear magnetic resonance (NMR) measurements have been carried out on a single-crystalline PrOs4Sb12 for magnetic field (H) up to 15 T. A well-split Sb-121-NMR spectrum was observed for H parallel to < 0 0 1 >. We calculated the electric field gradient (EFG) of Sb site by a FLAPW method based on LDA. We have identified the observed NMR lines corresponding to three different Sb sites with asymmetric EFG tensors. (c) 2005 Elsevier B.V. All rights reserved.