Ion irradiation and thermally induced mixing of CoCrPt/Cr multilayered films

Journal Article · Mon Jan 22 00:00:00 EST 2007 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2432256· OSTI ID:20971784

Georgieva, M T; Grundy, P J; Telling, N D ^[1]

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1. Institute for Materials Science, University of Salford, Salford M5 4WT (United Kingdom) and MDM-CNR-INFM National Laboratory, Agrate Brianza, Milan 20041 (Italy)

A set of CoCrPt/Cr multilayered films with variable layer thicknesses has been used in an investigation of interlayer mixing and ''patterning'' of samples with relatively high coercivity and in-plane magnetization. The multilayers with the highest coercivities were irradiated with different doses of Ar{sup ++} ions in order to intermix the Cr and CoCrPt layers and push the CoCrPt stoichiometry into the nonmagnetic region of the phase diagram. Samples were also irradiated through a Ni-grating mask to obtain patterning by adjacent magnetic and nonmagnetic regions of the film. Thermal annealing experiments mirrored the change in magnetic properties of the irradiated samples.

• OSTI ID: 20971784
• Journal Information: Applied Physics Letters, Vol. 90, Issue 4; Other Information: DOI: 10.1063/1.2432256; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
ARGON IONS
CHROMIUM
CHROMIUM ALLOYS
COBALT ALLOYS
COERCIVE FORCE
ION BEAMS
IRRADIATION
LAYERS
MAGNETIC PROPERTIES
MAGNETIZATION
PHASE DIAGRAMS
PLATINUM ALLOYS
STOICHIOMETRY
THICKNESS
THIN FILMS