@article{6987,
  author = {K. W. Jobson and J. P. R. Wells and R. E. I. Schropp and N. Q. Vinh and J. I. Dijkhuis},
  title = {Infrared transient grating measurements of the dynamics of hydrogen local mode vibrations in amorphous silicon-germanium},
  abstract = {We report on picosecond, time-resolved measurements of the vibrational relaxation and decay pathways of the Si-H and Ge-H stretching modes in hydrogenated amorphous silicon-germanium thin films (a-SiGe: H). It is demonstrated that the decay of both modes has a nonexponential shape, attributable to the local environment of the Si-H and Ge-H bonds. Temperature dependent measurements of the ensemble averaged population decay time < T-1 > are used to demonstrate that the stretch modes relax to Si(Ge)-H bending modes and that the excess energy is dissipated,into a combination of bulk vibrations. The influence of the mixed character Si-Ge bulk vibrations upon the relaxation dynamics is discussed. (c) 2008 American Institute of Physics.},
  year = {2008},
  journal = {Journal of Applied Physics},
  volume = {103},
  number = {1},
  pages = {5},
  month = {Jan},
  isbn = {0021-8979},
  url = {<Go to ISI>://000252890700006 },
  note = {ISI Document Delivery No.: 258SVTimes Cited: 0Cited Reference Count: 17},
  language = {English},
}