Effects of pressure on electrical property of BaIrO(3)

The in situ high-pressure measurements of electrical resistivity versus temperature for weak ferromagnetic BaIrO(3) have been performed, using a Cu-Be piston-cylinder-type apparatus up to 1.0 GPa at 80-300 K. The electrical resistivity is increasing with pressure. The pressure derivative of Curie temperature partial derivative T(c)/partial derivative P is equal to -6.1(2) K/GPa, and the relative pressure dependence partial derivative In T(c)/partial derivative P is equal to -3.4(1)%/GPa, which indicates that BaIrO(3) is a weak itinerant ferromagnet. (C) 2008 Elsevier Ltd. All rights reserved.