J Y Wang et al 2005 J. Phys. D: Appl. Phys. 38 4015 doi:10.1088/0022-3727/38/22/003
Perpendicularly magnetized, grooved GdTbFeCo microstructures for atom optics
J Y Wang, S Whitlock, F Scharnberg, D S Gough, A I Sidorov, R J McLean and P Hannaford
Show affiliationsPeriodically grooved, micron-scale structures incorporating perpendicularly magnetized Gd10Tb6Fe80Co4 magneto-optical films have been fabricated and characterized. Such structures produce a magnetic field having flat equipotentials and whose magnitude decays exponentially with distance above the surface, making them attractive for manipulating ultracold atoms in atom optics. The GdTbFeCo films have been deposited on a Cr underlayer on a silicon (100) wafer and on a grooved silicon microstructure using DC magnetron sputtering. The films are found to have excellent magnetic properties for magnetic atom optics applications, including high remanent magnetization, high coercivity and excellent homogeneity.
- PACS
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68.55.-a Thin film structure and morphology
75.70.Ak Magnetic properties of monolayers and thin films
75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects
- Subjects
- Dates
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Issue 22 (21 November 2005)
Received 15 March 2005, in final form 26 August 2005
Published 7 November 2005
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Perpendicularly magnetized, grooved GdTbFeCo microstructures for atom optics
J Y Wang et al 2005 J. Phys. D: Appl. Phys. 38 4015
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