Abstract

The 121Sb NQR spectra of CdSb single crystal were measured in the presence of weak (up to 500 Oe) external magnetic fields. As the analysis of the 121Sb EFG symmetry showed, two magnetically nonequivalent Sb sites exist in the CdSb crystal lattice. An upper limit of the local magnetic field, which may exist in CdSb characterized with the observed 121Sb NQR spectra, was estimated by modeling the Zeeman perturbed patterns. This amounted to H loc ∼10 G, hence being much less than earlier found local fields H loc ≈30–200 G in bismuth-based compounds.

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