Lorentz transmission electron microscopy investigation of magnetically patterned Co/Pt multilayers
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. (LBNL), Berkeley, CA (United States)
- 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; R&D Project: 511205; TRN: AH200133%%50
- Resource Relation:
- Conference: Magnetic Storage Systems Beyond 2000, NATO-ASI, Rhodes (GR), 06/12/2000--06/23/2000; Other Information: PBD: 1 Aug 2000
- Country of Publication:
- United States
- Language:
- English
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