We report low-temperature (20 mK-5 K) muon spin relaxation (mu SR) mea
surements of the geometrically spin-frustrated LiV2O4. We find that th
e spin dynamics of the ground state are very sensitive to magnetic imp
urities of the specimens. We discuss the similarities of the ground st
ate with spin glasses. (C) 1998 Elsevier Science B.V. All rights reser
ved.