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Title: Ultrafast chemical kinetics: Elementary chemical act

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Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Chemical Physics Letters; Journal Volume: 619
Country of Publication:
United States

Citation Formats

Bratos, S., Wulff, M., Leicknam, J., and Kong, Q.. Ultrafast chemical kinetics: Elementary chemical act. United States: N. p., 2015. Web. doi:10.1016/j.cplett.2014.11.055.
Bratos, S., Wulff, M., Leicknam, J., & Kong, Q.. Ultrafast chemical kinetics: Elementary chemical act. United States. doi:10.1016/j.cplett.2014.11.055.
Bratos, S., Wulff, M., Leicknam, J., and Kong, Q.. 2015. "Ultrafast chemical kinetics: Elementary chemical act". United States. doi:10.1016/j.cplett.2014.11.055.
title = {Ultrafast chemical kinetics: Elementary chemical act},
author = {Bratos, S. and Wulff, M. and Leicknam, J. and Kong, Q.},
abstractNote = {},
doi = {10.1016/j.cplett.2014.11.055},
journal = {Chemical Physics Letters},
number = ,
volume = 619,
place = {United States},
year = 2015,
month = 1
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  • We demonstrate that in semiconductors with strong Coulomb exchange correlations, transient nonlinear Faraday rotation spectroscopy (FRS) more accurately probes the ultrafast carrier relaxation than the widely used differential transmission spectroscopy (DTS). We calculate nonlinear FRS and DTS by solving the six-band semiconductor Bloch equations for magnetic Cd{sub 1{minus}x}Mn{sub x}Te and CdTe quantum wells. We show that for highly excited carriers, nonlinear FRS rotation spectra closely monitor the ultrafast thermalization of the carrier distribution, unlike DTS signals. We further show that the magnetic band tuning capabilities (giant Zeeman splitting) of dilute magnetic semiconductors allows one to investigate the electron kinetics inmore » selective bands. {copyright} {ital 1998} {ital The American Physical Society}« less