Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Electronic Refrigeration of a Two-Dimensional Electron Gas
AU - Prance, J. R.
AU - Smith, C. G.
AU - Griffiths, J. P.
AU - Chorley, S. J.
AU - Anderson, D.
AU - Jones, G. A. C.
AU - Farrer, I.
AU - Ritchie, D. A.
PY - 2009/4/10
Y1 - 2009/4/10
N2 - Measurements are presented of a device designed to cool a 6 mu m(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 mu m(2) region is found to be cooled below 190 mK. Below 120 mK the results deviate from predictions, which is attributed to reduced electron-electron scattering rates.
AB - Measurements are presented of a device designed to cool a 6 mu m(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 mu m(2) region is found to be cooled below 190 mK. Below 120 mK the results deviate from predictions, which is attributed to reduced electron-electron scattering rates.
UR - http://www.scopus.com/inward/record.url?scp=64549132519&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.102.146602
DO - 10.1103/PhysRevLett.102.146602
M3 - Journal article
VL - 102
SP - -
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 14
M1 - 146602
ER -