Frustration driven magnetic states of A-site spinels probed by μSR G. M. Kalvius, A. Krimmel, O. Hartmann, F. J. Litterst, R. Wäppling, F. E. Wagner, V. Tsurkan and A. Loidl Eur. Phys. J. B, 77 1 (2010) 87-100 Published online: 16 September 2010 DOI: 10.1140/epjb/e2010-00262-7