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Millikelvin cooling by heavy-fermion-based tunnel junctions
9. A. C. Hewson The Kondo Problem to Heavy Fermions ( Cambridge University Press, Cambridge, 1993).
12. B. P. Poole, Jr., H. A. Farach, R. J. Creswick, and R. Prozorov, Superconductivity, 2nd ed. ( Academic Press, Amsterdam, 2007).
13. M. J. Prest, J. T. Muhonen, M. Prunnila, D. Gunnarsson, V. A. Shah, R. J. H. Morris, A. Dobbie, M. Myronov, T. E. Whall, E. H. C. Parker, and D. R. Leadley, Appl. Phys. Lett. 99, 251908 (2011).
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This paper addresses a high-performance electron-tunneling cooler based on a novel heavy-fermion/insulator/superconductor junction for millikelvin cooling applications. We show that the cooling performance of an electronic tunneling refrigerator could be significantly improved using a heavy-fermion metal to replace the normal metal in a conventional normal metal/insulator/superconductor junction. The calculation, based on typical parameters, indicates that, for a bath temperature of 300 mK, the minimum cooling temperature of an electron tunneling refrigerator is reduced from around 170 mK to below 50 mK if a heavy-fermion metal is employed in place of the normal metal. The improved cooling is attributed to an enhancement in electron tunneling due to the existence of a resonant density of states at the Fermi level.
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