Magnetic ordering in TbNi2B2C and Tb0.4Y0.6Ni2B2C single crystals

Abstract

The complex magnetic ordering of TbNi2B2C and Tb0.4Y0.6Ni2B2C single crystals has been investigated by AC-susceptibility and magnetization measurements. Metamagnetic transitions and an anisotropic behavior within (a, b)-plane were revealed for TbNi2B2C. Alloying with Y reduces the critical field of antiferromagnetic to paramagnetic transition, eliminates the metamagnetic transitions and induces superconductivity below 4.1 K. (C) 2000 Elsevier Science B.V. All rights reserved.