A Kelvinox 400 dilution refrigerator with the ability to load samples onto the mixing chamber from the bottom of the cryostat has been combined with an ultrahigh-vacuum (UHV) deposition chamber equipped with molecular beam sources. The liquid helium cooled sample transfer mechanism is used in a manner that allows films to be grown on substrates which are kept at temperatures of order 8K with chamber pressures in the 10^-9 to 10^-10 Torr range. This system facilitates the growth of quench-condensed ultrathin films which must always be kept below ~ 12K in a UHV environment during and after growth. Measurements can be made on the films down to millikelvin temperatures and in magnetic fields up to 15 T.
@article{arxiv.cond-mat/0108317,
title = {Bottom-loading dilution refrigerator with ultra-high vacuum deposition capability},
author = {L. M. Hernandez and A. M. Goldman},
journal= {arXiv preprint arXiv:cond-mat/0108317},
year = {2009}
}