A04

Novel, sustainable permanent magnets with quasi monopole characteristics and ultra-hard (10 Tesla) magnetic coercivity are investigated. The concept is based on the controlled nanoscale phase decomposition and orientation by thermal treatment of alloys ranging from off-stochiometric Heusler to magnetic high entropy alloys. By carefully applying thermal cycles in or without external magnetic fields, we aim at an integrally as well as a locally controlled phase decomposition resulting in shell-ferromagnetic cluster embedded in an antiferromagnetic matrix.