@article{5779, author = {C. M. Ciesla and B. N. Murdin and T. J. Phillips and A. M. White and A. R. Beattie and Cjcm Langerak and C. T. Elliott and C. R. Pidgeon and S. Sivananthan}, title = {Auger recombination dynamics of Hg0.795Cd0.205Te in the high excitation regime}, abstract = {A direct measurement of carrier recombination, far from equilibrium, in Hg0.795Cd0.205Te (N-d - N-a = 3.3 X 10(14) cm(-3)) has been made on a picosecond time scale with a pump-probe technique using a free-electron laser. Over the range of carrier densities (5 X 10(16)-3 X 10(17) cm(-3)) and at the temperatures (50-300 K) studied experimentally, contributions to the recombination from Auger, Shockley-Read-Hall, and radiative mechanisms were calculated using an analytic approximation, with carrier degeneracy included, Auger-1 (CCCH) recombination rates were calculated, which also gave the Auger-7 (CHHL) rates via a simple relationship. Excellent agreement was obtained, with Auger-1 dominant at all temperatures and, significantly, for T > 225 K when the sample is intrinsic, the Auger-7 contribution was found to be important. (C) 1997 American Institute of Physics.}, year = {1997}, journal = {Applied Physics Letters}, volume = {71}, number = {4}, pages = {491-493}, month = {Jul 28}, isbn = {0003-6951}, doi = {10.1063/1.119588}, language = {eng}, }