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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Spin Polarization of Carriers in InGaAs Self-Assembled Quantum Rings Inserted in GaAs-AlGaAs Resonant Tunneling Devices

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Author(s):
Orsi Gordo, V. ; Galvo Gobato, Y. ; Galeti, H. V. A. ; Brasil, M. J. S. P. ; Taylor, D. ; Henini, M.
Total Authors: 6
Document type: Journal article
Source: JOURNAL OF ELECTRONIC MATERIALS; v. 46, n. 7, p. 3851-3856, JUL 2017.
Web of Science Citations: 2
Abstract

In this work, we have investigated transport and polarization resolved photoluminescence (PL) of n-type GaAs-AlGaAs resonant tunneling diodes (RTDs) containing a layer of InGaAs self-assembled quantum rings (QRs) in the quantum well (QW). All measurements were performed under applied voltage, magnetic fields up to 15 T and using linearly polarized laser excitation. It was observed that the QRs' PL intensity and the circular polarization degree (CPD) oscillate periodically with applied voltage under high magnetic fields at 2 K. Our results demonstrate an effective voltage control of the optical and spin properties of InGaAs QRs inserted into RTDs. (AU)

FAPESP's process: 16/07239-7 - 33rd International Conference on the Physics of Semiconductors
Grantee:Yara Galvão Gobato
Support Opportunities: Research Grants - Meeting - Abroad
FAPESP's process: 12/24055-6 - Optical, electrical and spin properties of semiconductor nanostructures and nanodevices
Grantee:Yara Galvão Gobato
Support Opportunities: Regular Research Grants