Influence of the phenomena occurring at the interface between L10-ordered-FePt and Fe on the coercivity behavior

Autor: M. Carbucicchio
Rok vydání: 2016
Předmět:
Zdroj: Hyperfine Interactions. 237
ISSN: 1572-9540
0304-3843
DOI: 10.1007/s10751-016-1366-6
Popis: L10-ordered FePt/Fe thin bi-layers were grown using a molecular beam epitaxy onto (100)-MgO substrates changing the soft Fe layer thickness. The study of the intermixing phenomena occurring at the hard/soft interfaces was carried out using surface Mossbauer spectroscopy. The magnetic properties of the samples were analyzed with a magneto-optical Kerr effect magnetometer. The surface morphology and the magnetic domains were analyzed with an UHV atomic and magnetic force microscopy in tapping and lift mode respectively.The present work clearly demonstrates that the degree of interface intermixing and reactions is the responsible for the coercivity behavior in exchange-spring magnets.
Databáze: OpenAIRE