Room-temperature five-tesla coercivity of a rare-earth-free shell-ferromagnet

• DOI: 10.1063/1.4983199
• Publication Date: 2017-05-08T13:26:03Z
• Authors: F. Scheibel; D. Spoddig; R. Meckenstock; T. Gottschall; A. Çakır; T. Krenke; M. Farle; O. Gutfleisch; M. Acet
• Keywords: Ferromagnetic material properties

Ni2MnX-based Heusler (X: main group element), when enriched with Mn, will decompose into ferromagnetic Ni2MnX and antiferromagnetic NiMn temper-annealed around 650 K. When the starting material is chosen such that X-composition about 5 at. % annealing takes place in presence of a magnetic field 1 T, resulting composite nanoprecipitate strongly pinned shell-ferromagnets soft core embedded matrix. We show shells precipitates are so estimated required to fully reorient spins order 20 T. examine Ni50.0Mn45.1In4.9 sample pinning interactions precipitate matrix magnetization resonance studies carried out fields ranging up 14 12 respectively.