Optical detection of spin-filter effect for electron spin polarimetry
Abstract
We have monitored the cathodoluminescence (CL) emitted upon injection of free electrons into a hybrid structure consisting of a thin magnetic Fe layer deposited on a p-GaAs substrate, in which InGaAs quantum wells are embedded. Electrons transmitted through the unbiased metal/semiconductor junction recombine radiatively in the quantum wells. Because of the electron spin-filtering across the Fe/GaAs structure, the CL intensity, collected from the backside, is found to depend on the relative orientation between the injected electronic spin polarization and the Fe layer magnetization. The spin asymmetry of the CL intensity in such junction provides a compact optical method for measuring spin polarization of free electrons beams or of hot electrons in solid-state devices.
- Authors:
-
- Laboratoire de Physique de la Matière Condensée, Ecole Polytechnique - CNRS, 91128 Palaiseau Cedex (France)
- Publication Date:
- OSTI Identifier:
- 22314493
- Resource Type:
- Journal Article
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 105; Journal Issue: 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CATHODOLUMINESCENCE; ELECTRONS; GALLIUM ARSENIDES; INDIUM ARSENIDES; IRON; POLARIMETRY; QUANTUM WELLS; SEMICONDUCTOR JUNCTIONS; SPIN; SPIN ORIENTATION
Citation Formats
Li, X., Majee, S., Lampel, G., Lassailly, Y., Paget, D., Peretti, J., Tereshchenko, O. E., E-mail: teresh@isp.nsc.ru, and Novosibirsk State University, Novosibirsk 630090. Optical detection of spin-filter effect for electron spin polarimetry. United States: N. p., 2014.
Web. doi:10.1063/1.4892073.
Li, X., Majee, S., Lampel, G., Lassailly, Y., Paget, D., Peretti, J., Tereshchenko, O. E., E-mail: teresh@isp.nsc.ru, & Novosibirsk State University, Novosibirsk 630090. Optical detection of spin-filter effect for electron spin polarimetry. United States. https://doi.org/10.1063/1.4892073
Li, X., Majee, S., Lampel, G., Lassailly, Y., Paget, D., Peretti, J., Tereshchenko, O. E., E-mail: teresh@isp.nsc.ru, and Novosibirsk State University, Novosibirsk 630090. 2014.
"Optical detection of spin-filter effect for electron spin polarimetry". United States. https://doi.org/10.1063/1.4892073.
@article{osti_22314493,
title = {Optical detection of spin-filter effect for electron spin polarimetry},
author = {Li, X. and Majee, S. and Lampel, G. and Lassailly, Y. and Paget, D. and Peretti, J. and Tereshchenko, O. E., E-mail: teresh@isp.nsc.ru and Novosibirsk State University, Novosibirsk 630090},
abstractNote = {We have monitored the cathodoluminescence (CL) emitted upon injection of free electrons into a hybrid structure consisting of a thin magnetic Fe layer deposited on a p-GaAs substrate, in which InGaAs quantum wells are embedded. Electrons transmitted through the unbiased metal/semiconductor junction recombine radiatively in the quantum wells. Because of the electron spin-filtering across the Fe/GaAs structure, the CL intensity, collected from the backside, is found to depend on the relative orientation between the injected electronic spin polarization and the Fe layer magnetization. The spin asymmetry of the CL intensity in such junction provides a compact optical method for measuring spin polarization of free electrons beams or of hot electrons in solid-state devices.},
doi = {10.1063/1.4892073},
url = {https://www.osti.gov/biblio/22314493},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 5,
volume = 105,
place = {United States},
year = {Mon Aug 04 00:00:00 EDT 2014},
month = {Mon Aug 04 00:00:00 EDT 2014}
}