Optimization Procedure for the Cooling of Liquid <sup>3</sup>He by Adiabatic Demagnetization of Praseodymium Nickel

J. M. Parpia, W. P. Kirk, P. S. Kobiela, T. L. Rhodes, Z. Olejniczak, and G. N. Parker

Rev. Sci. Instrum. 56, 437 (1985).