Abstract
We investigate the growth, fabrication, and characterization of an electrically-injected spin-polarized laser utilizing an Fe/n-Al 0.1Ga0.9As Schottky tunnel barrier for efficient spin injection into an InGaAs quantum well vertical-cavity surface-emitting laser. A threshold current reduction of 11% and maximum degree of circular polarization of 23% are observed for a 15 μm mesa diameter laser at 50 K. The lack of a threshold current reduction and circularly-polarized electroluminescence in similar nonmagnetic and Fe control lasers provides further evidence of spin injection. © 2006 WILEY-VCH Verlag GmbH & Co. KGaA.
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CITATION STYLE
Bhattacharya, P., Holub, M., & Saha, D. (2006). Spin-polarized surface-emitting lasers. In Physica Status Solidi (C) Current Topics in Solid State Physics (Vol. 3, pp. 4396–4400). https://doi.org/10.1002/pssc.200672883
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