Exploring the Different Degrees of Magnetic Disorder in Tb_xR_1-xCu₂ Nanoparticle Alloys.

ABSTRACT: Recently, potential technological interest has been revealed for the production of magnetocaloric alloys using Rare-Earth intermetallics. In this work, three series of TbxR1-xCu2 (R ≡ Gd, La, Y) alloys have been produced in bulk and nanoparticle sizes via arc melting and high energy ball milling. Rietveld refinements of the X-ray and Neutron diffraction patterns indicate that the crystalline structure in all alloys is consistent with TbCu2 orthorhombic Imma bulk crystalline structure. The analyses of the DC-magnetisation (MDC) and AC-susceptibility (χAC) show that three distinct degrees of disorder have been achieved by the combination of both the Tb3+ replacement (dilution) and the nanoscaling. These disordered states are characterised by transitions which are evident to MDC, χAC and spec

SUBMITTER: M Jefremovas E 

PROVIDER: S-EPMC7694043 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature