Response to 'Comment on ‘The Origin of Magnetism in Mn-Doped SrTiO3’'

We fi rst summarize the main points of our disagreement with Tkach et al. [ 1 ] They claim that the magnetic peak observed at around 38 K in their essentially paramagnetic Sr 0.98 Mn 0.02 TiO 3 ceramic sample is caused by a spin glass ground state, which is an intrinsic property of the Sr 0.98 Mn 0.02 TiO 3 phase. They support their claim by providing ac magnetic data that shows weak frequency-dependence, and memory effects in the dc magnetic susceptibility, which are indeed consistent with the spin-glass model. In addition, they provide zero-fi eld cooled magnetic data for the second sample in the Sr 1-x Mn x TiO 3 series, namely, Sr 0.975 Mn 0.025 TiO 3 that shows a magnetic anomaly peak at around 43 K. In this way, they demonstrate that the temperature of the magnetic anomaly is dependent on the Mn concentration which serves as evidence that the magnetic anomaly is an intrinsic characteristic of the Sr 1-x Mn x TiO 3 . In contrast, we have demonstrated in our previous studies [ 2 , 3 ]