title: Superconducting switch for large heat flow below 50 mK.
abstract: We describe both the method of fabrication and the performance of a zinc superconducting heat switch used to couple thermally the mixing chamber of a dilution refrigerator and a nuclear demagnetization refrigerator.
authors.affiliation: Department of Physics, University of California-San Diego, La Jolla, CA 92093, USA.
authors.forename: M
authors.initials: M
authors.lastname: Krusius
authors.forename: D N
authors.initials: DN
authors.lastname: Paulson
authors.forename: J C
authors.initials: JC
authors.lastname: Wheatley