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Strain enhanced electron cooling in a degenerately doped semiconductor
M. J. Prest, J. T. Muhonen, M. Prunnila +9
Enhanced electron cooling is demonstrated in a strained-silicon/superconductor tunnel junction refrigerator of volume 40 um^3. The electron temperature is reduced from 300 mK to 17…
Magnetic-Field-Induced Stabilization of Non-Equilibrium Superconductivity
J. T. Peltonen, J. T. Muhonen, M. Meschke +2
A small magnetic field is found to enhance relaxation processes in a superconductor thus stabilizing superconductivity in non-equilibrium conditions. In a normal-metal (N) - insula…
Strain control of electron-phonon energy loss rate in many-valley semiconductors
J. T. Muhonen, M. J. Prest, M. Prunnila +8
We demonstrate significant modification of the electron-phonon energy loss rate in a many-valley semiconductor system due to lattice mismatch induced strain. We show that the therm…