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Photon energy and carrier density dependence of spin dynamics in bulk CdTe crystal at room temperature
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10.1063/1.3155428
/content/aip/journal/apl/94/24/10.1063/1.3155428
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/24/10.1063/1.3155428
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Band structure of CdTe near the point (b) selection rules and relative transition intensities for right-handed (solid arrow) and left-handed (dashed arrow) circularly polarized light.

Image of FIG. 2.
FIG. 2.

Time dependence spectroscopy of different polarized pump and probe pulses at room temperature. The curves labeled as and were obtained from co-circularly and counter-circularly polarized pump and probe beams respectively, whereas the one labeled (−, −) was the linearly polarized pump and probe pulse. The inset was the time dependence of the difference between the reflection signals for and curve. The spin-relaxation time constant is by fitting the experimental data using a single-exponential decay. The photon energy and photo-excited carrier density are 1.494 eV and , respectively.

Image of FIG. 3.
FIG. 3.

(a) Time dependence of spin relaxation with different photon energy at the density of and (b) different excited carrier density at fixed photon energy of 1.485 eV. In order to easily compare the distinction of different polarized pump and probe beams (−, −) were not shown. (c) the spin relaxation time constant as a function of electron density and photon energy.

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/content/aip/journal/apl/94/24/10.1063/1.3155428
2009-06-17
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Photon energy and carrier density dependence of spin dynamics in bulk CdTe crystal at room temperature
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/24/10.1063/1.3155428
10.1063/1.3155428
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