Academic Journal
Optical detection of spin-filter effect for electron spin polarimetry
| العنوان: | Optical detection of spin-filter effect for electron spin polarimetry |
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| المؤلفون: | Li, X., Tereshchenko, O. E., Majee, S., Lampel, G., Lassailly, Y., Paget, D., Peretti, J. |
| المصدر: | Applied Physics Letters ; volume 105, issue 5 ; ISSN 0003-6951 1077-3118 |
| بيانات النشر: | AIP Publishing |
| سنة النشر: | 2014 |
| الوصف: | 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. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1063/1.4892073 |
| DOI: | 10.1063/1.4892073/13300886/052402_1_online.pdf |
| الاتاحة: | http://dx.doi.org/10.1063/1.4892073 https://pubs.aip.org/aip/apl/article-pdf/doi/10.1063/1.4892073/13300886/052402_1_online.pdf |
| رقم الانضمام: | edsbas.52EF2685 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1063/1.4892073 |
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