Critical behavior of the ferromagnetic perovskite BaRuO3.
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.
Zhou
J-S
JS
Institute for Solid State Physics, University of Tokyo, Kashiwa, Japan. jszhou@mail.utexas.edu
Matsubayashi
K
K
Uwatoko
Y
Y
Jin
C-Q
CQ
Cheng
J-G
JG
Goodenough
J B
JB
Liu
Q Q
QQ
Katsura
T
T
Shatskiy
A
A
Ito
E
E