Phys. Rev. Lett. 101, 077206 (2008) [4 pages]Critical Behavior of the Ferromagnetic Perovskite BaRuO3Received 26 March 2008; published 15 August 2008 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. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.077206
DOI:
10.1103/PhysRevLett.101.077206
PACS:
75.30.Et, 75.10.Lp, 75.40.−s
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