Micron-sized atom traps made from magneto-optical thin films
arXiv:cond-mat/0406482 · doi:10.1007/s00340-004-1655-7
Abstract
We have produced magnetic patterns suitable for trapping and manipulating neutral atoms on a m length scale. The required patterns are made in Co/Pt thin films on a silicon substrate, using the heat from a focussed laser beam to induce controlled domain reversal. In this way we draw lines and "paint" shaped areas of reversed magnetization with sub-micron resolution. These structures produce magnetic microtraps above the surface that are suitable for holding rubidium atoms with trap frequencies as high as ~1 MHz.
6 pages, 7 figures
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- Atom trapping with a thin magnetic film
- Cold atoms in videotape micro-traps
- Sub-micron period lattice structures of magnetic microtraps for ultracold atoms on an atom chip
- Trapping atoms on a transparent permanent-magnet atom chip
- Fabrication of magnetic atom chips based on FePt
- Experiments on a videotape atom chip: fragmentation and transport studies
- Nanomagnetic engineering of the properties of domain wall atom traps
- Decay Processes in the Presence of Thin Superconducting Films
- Design and Characterization of a Field-Switchable Nanomagnetic Atom Mirror
- Bose-Einstein Condensation on a Permanent-Magnet Atom Chip