Abstract

We report the loading of a 1D permanent magnetic lattice with ultracold atoms on an atom chip. Our magnetic lattice is produced by a perpendicularly magnetised film of Gd₁₀Tb₆Fe₈₀Co₄ deposited on a 10 μm period grooved structure. A BEC is created in a Z-wire trap about 300 μm from the surface of the chip. An atom cloud at about 5 μK is moved adiabatically towards the lattice by an appropriate bias field. We estimate that about one hundred lattice sites are loaded with atoms about 7 μm from the chip surface at a temperature of about 10 μK.

© 2007 Optical Society of America