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. 2008 Aug 15;101(7):077206.
doi: 10.1103/PhysRevLett.101.077206. Epub 2008 Aug 15.

Critical behavior of the ferromagnetic perovskite BaRuO3

J-S Zhou  1 , K Matsubayashi, Y Uwatoko, C-Q Jin, J-G Cheng, J B Goodenough, Q Q Liu, T Katsura, A Shatskiy, E Ito
Affiliations

Critical behavior of the ferromagnetic perovskite BaRuO3

J-S Zhou et al. Phys Rev Lett. .

Abstract

A thorough study has been made of the physical properties under high pressure of the perovskite BaRuO3 synthesized under pressure; it includes the critical behavior in the vicinity of Tc to 1 GPa and the temperature dependences of resistivity and ac magnetic susceptibility up to 8 GPa. The ferromagnetism in BaRuO3 is suppressed at 8 GPa. Critical fluctuations in the vicinity of Tc have been found in BaRuO3 and they are enhanced under pressure. These observations are in sharp contrast to SrRuO3 where mean-field behavior is found at Tc.

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