Magnetocaloric effect in TbCo-based multilayers

Abstract

TbCo-based magnetic multilayers with different thicknesses of Tb-Co layers and non-magnetic spacers (Ti, Si) have been prepared by sputtering. The structure and magnetocaloric properties of these samples have been investigated. The peak value of magnetic entropy change in TbCo-based multilayers is smaller than the one previously reported for bulk counterparts. Nanostructuring leads to a table-like temperature dependence of the magnetic entropy change. It has been shown that the material of non-magnetic spacers can have a noticeable effect on magnetocaloric properties of TbCo-based magnetic multilayers.