Studies of R2Ti2O7 (R=Gd and Yb); new results
  Specific heat and muon spin rotation and relaxation data are presented for two geometrically frustrated systems: Gd2Ti2O7 which antiferromagnetically orders and Yb2Ti2O7 which presents dynamical short range correlations at low temperature. The muon data help to characterize the spin dynamics of these two compounds. 
P. Dalmas de Reotier, V. Glazkov, C. Marin, A. Yaouanc, P.C.M.   Gubbens, S. Sakarya, P. Bonville, A. Amato, C. Baines, P.J....