Abstract

Effect of pressure on the magnetic transition temperature of CuFeO 2 with a delafossite-type structure has been investigated using a piston-cylinder-type high-pressure apparatus designed for SQUID magnetometer. CuFeO 2 having triangular layer of magnetic Fe 3+ shows the successive antiferromagnetic transition at 13 K ( T N1) and at 9 K ( T N2). It is found that both transition temperatures decrease with applying pressure up to 0.7 GPa at a rate of −1 K/GPa.

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