Pressure effect on the magnetic properties in PrFe4P12

Abstract The uniaxial pressure effect on magnetization of PrFe 4 P 12 single crystals has been investigated. An extremely large enhancement of magnetic susceptibility has been found at around T N . With increasing pressure, T N decreases, suggesting the suppression of the antiferromagnetic interaction. In the field dependence of magnetization, we have found an enhancement of magnetic moment with pressure at the low field antiferromagnetic state, suggesting that the breaking of the crystal symmetry has to be considered.