One-dimensional lattice of permanent magnetic microtraps for ultracold atoms on an atom chip

  title={One-dimensional lattice of permanent magnetic microtraps for ultracold atoms on an atom chip},
  author={Mandip Singh and M. Volk and Alexander M. Akulshin and Andrei I. Sidorov and R J Mclean and Peter Hannaford},
  journal={Journal of Physics B},
We report on the loading and trapping of ultracold atoms in a one-dimensional permanent magnetic lattice of period 10 µm produced on an atom chip. The grooved structure which generates the magnetic lattice potential is fabricated on a silicon substrate and coated with a perpendicularly magnetized multilayered TbGdFeCo/Cr film of effective thickness 960 nm. Ultracold atoms are evaporatively cooled in a Z-wire magnetic trap and then adiabatically transferred to the magnetic lattice potential by… 

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