Domain Structure and Spin Reorientation in TbCo5 and DyCo5 Intermetallics

In this paper, we study the spin-reorientation processes in DyCo
₅
and TbCo
₅
intermetallic compounds by direct observation of domain structure (DS) realignment during the easy plane-easy cone-easy axis phase transitions. In addition to the analysis of DS changes due to temperature induced spin reorientation, a description is given of a newly discovered effect of surface out-of-plane domain reorientation produced by abrasion and/or indentation of the surface of macroscopic samples with overall easy-plane magnetocrystalline anisotropy.