Comment on "Exchange bias-like phenomenon in SrRuO3" by Pi et al (Appl. Phys. Lett. 88, 102502 (2006)

Pi et al report in their letter [1] that SrRuO3 exhibits “exchange bias-like phenomenon”. In our comment we would like to point out that the data presented in the letter is qualitatively different from what is known as exchange-bias behavior; furthermore, it is completely consistent with normal behavior of ferromagnetic materials.