A permanent magnetic film atom chip for Bose-Einstein condensation
Abstract
We present a hybrid atom chip which combines a permanent magnetic film with a micromachined current-carrying structure used to realize a Bose-Einstein condensate. A novel TbGdFeCo material with large perpendicular magnetization has been tailored to allow small scale, stable magnetic potentials for ultracold atoms. We are able to produce 87Rb Bose-Einstein condensates in a magnetic trap based on either the permanent magnetic film or the current-carrying structure. Using the condensate as a magnetic field probe we perform cold atom magnetometry to profile both the field magnitude and gradient as a function of distance from the magnetic film surface. Finally we discuss future directions for our permanent magnetic film atom chip.
Cite
@article{arxiv.cond-mat/0507435,
title = {A permanent magnetic film atom chip for Bose-Einstein condensation},
author = {B. V. Hall and S. Whitlock and F. Scharnberg and P. Hannaford and A. Sidorov},
journal= {arXiv preprint arXiv:cond-mat/0507435},
year = {2015}
}
Comments
11 pages, 6 figures, submitted to J.Phys.B