Electronic refrigeration of a two-dimensional electron gas.

  title={Electronic refrigeration of a two-dimensional electron gas.},
  author={J R Prance and Charles G. Smith and Jonathan P. Griffiths and S. J. Chorley and David E. Anderson and G. A. C. Jones and Ian Farrer and David A. Ritchie},
  journal={Physical review letters},
  volume={102 14},
Measurements are presented of a device designed to cool a 6 microm;{2} region of 2D electron gas using quantum dots. Electrostatic effects are found to be significant in the device, and a model that accounts for them is developed. At ambient electron temperatures above 120 mK the results are consistent with the model and the base temperature of the cooled region is estimated. At an ambient electron temperature of 280 mK, the 6 microm;{2} region is found to be cooled below 190 mK. Below 120 mK… CONTINUE READING

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