Lorentz transmission electron microscopy investigation of magnetically patterned Co/Pt multilayers

Conference · Tue Aug 01 04:00:00 EDT 2000

OSTI ID:787273

Kusinski, G J ^[1]; Krishnan, K M; Weller, D; Terris, B D; Folks, L; Kellock, A J; Baglin, J E.E.; Thomas, G

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1. LBNL Library

The switching behavior of magnetic patterns prepared by ion irradiation was investigated. Co/Pt multilayers with perpendicular anisotropy and large out-of-plane coercivities 5-6 kOe were grown on electron transparent SiN windows. Regularly spaced 1 micron sized regions, were magnetically pattered via ion beam irradiation through a stencil mask. Lorentz TEM was used to observe in-situ magnetization reversal processes of irradiated regions under well-defined applied magnetic fields. When the in-plane field was increased, domain wall motion was observed, resulting in the alignment of the patterns with the direction of the applied field. The switching mechanism of the in-plane patterns was by domain wall motion.

• Research Organization: Lawrence Berkeley National Lab., CA (US)
• Sponsoring Organization: USDOE Director, Office of Science. Office of Basic Energy Studies. Division of Materials Sciences (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 787273
• Report Number(s): LBNL--46721
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANISOTROPY
COBALT
ION BEAMS
IRRADIATION
MAGNETIC IMAGING MULTILAYERS ION IRRADIATION TEM LTEM PATTERNING
MAGNETIC PROPERTIES
MAGNETIZATION
PLATINUM
TRANSMISSION ELECTRON MICROSCOPY