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Towards optical manipulation and resistive readout of the GaAs nuclear spins

✍ Scribed by J.M. Buset; A.H. Mack; D. Laroche; C.R. Dean; M.P. Lilly; J.L. Reno; G. Gervais

Book ID: 104084953
Publisher: Elsevier Science
Year: 2008
Tongue: English
Weight: 363 KB
Volume: 40
Category: Article
ISSN: 1386-9477
DOI: 10.1016/j.physe.2007.08.128

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✦ Synopsis

We present an investigation into the manipulation of nuclear spins near the n ¼ 1 quantum Hall state of GaAs/AlGaAs using optical pumping methods. For this, we have built a custom-designed polarization controller which allows for arbitrary polarizations of near-infrared laser light to be transmitted through fiber optics onto the sample. Using resistive readout, it is demonstrated that different polarizations of light induce specific changes in the transport properties in the first Landau level of the GaAs/AlGaAs quantum well.

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