Selected Publications

Strain control of electron-phonon energy loss rate in many-valley semiconductors

J.T. Muhonen, M.J. Prest, M. Prunnila, D. Gunnarsson, V.A. Shah, A. Dobbie, M. Myronov, R.J.H. Morris, T.E. Whall, E.H.C. Parker, D.R. Leadley

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 thermal conductance from the electron system to the phonon bath in strained n + Si, at phonon temperatures between 200 mK and 450 mK, is more than an order of magnitude lower than that for a similar unstrained sample.

Appl. Phys. Lett. 98, 182103 (2011)

doi: 10.1063/1.3579524