Sub-10 mK "In-cell" Magnetic Refrigeration for Cryogen-free Cryostats

Abstract

A design and implementation of "in-cell" magnetic refrigeration to achieve sub-10 mK temperatures T in cryogen-free dilution refrigerators is presented. The ultra low temperatures below 5 mK are attained in finite magnetic fields B up to 1 T. The holding time below 5 mK varies between about 3 to 30 hours, depending on the final magnetic field after demagnetization process. The developed technique can be used to study low dimensional devices at ultra low electron temperatures in the High B/T regime.

References in corpus (5)

• On-and-off chip cooling of a Coulomb blockade thermometer down to 2.8 mK
• Dry demagnetization cryostat for sub-millikelvin helium experiments: refrigeration and thermometry
• Quasi-1D Coulomb drag in the nonlinear regime
• Tunable reciprocal and nonreciprocal contributions to 1D Coulomb Drag
• Quasi-1D Coulomb drag between spin-polarized quantum wires