Nanooptical systems and nanoelectronic devices

• Grant number: 12/02655-1
• Support Opportunities: Regular Research Grants
• Start date: May 01, 2012
• End date: April 30, 2014
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Victor Lopez Richard
• Grantee: Victor Lopez Richard
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

In this project we are proposing a sequence of tasks related to the systematic investigation of the optical response and electronic properties of semiconductor nano-structures of different geometries and compositions that offer interesting possibilities for the study of novel quantum phenomena. This contribution is part of a collaboration between experimental growth and spectroscopy groups with theoretical coworkers that tackle problems related to the manipulation of spin in quasi-zero and one-dimensional systems. Such a project would contribute to the support and encouragement to the nucleation of these lines of research under the coordination of the candidate. The theoretical and experimental endeavors include the study of semi-magnetic and non-magnetic quantum systems, with new structural properties.Conditions will be studied to enhance effects of optical and electronic correlation between nanostructures with a focus on implementing the application of these systems in devices for the transmission and storage of information in quantum levels. Challenging experimental questions are already placed on the agenda of this research where preliminary results show interesting effects of confinement and topology of the strain fields inherent in the growth process of these structures. The anisotropic optical response of these systems suggests their potential for use as photodetectors, optically controlled switches, and light sources. The partnerships established nationally and internationally in recent years with groups of growth and characterization as well as experience in the simulation of magneto-optical properties of nanostructures, are relevant to this work, responsible for the fundamental research achievements of the candidate in the last 10 years (AU)

Scientific publications

(6)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

LOPES-OLIVEIRA, V.; HERVAL, L. K. S.; ORSI GORDO, V.; CESAR, D. F.; DE GODOY, M. P. F.; GALVAO GOBATO, Y.; HENINI, M.; KHATAB, A.; SADEGHI, M.; WANG, S.; et al. Strain and localization effects in InGaAs(N) quantum wells: Tuning the magnetic response. Journal of Applied Physics, v. 116, n. 23, DEC 21 2014. (13/17657-2, 12/24055-6, 11/17944-6, 12/02655-1)

LOPES-OLIVEIRA, VIVALDO; MAZUR, YURIY I.; DE SOUZA, LEONARDO DIAS; BERNARDES MARCAL, LUCAS A.; WU, JIANG; TEODORO, MARCIO DALDIN; MALACHIAS, ANGELO; DOROGAN, VITALIY G.; BENAMARA, MOURAD; TARASOV, GEORGIY G.; et al. Structural and magnetic confinement of holes in the spin-polarized emission of coupled quantum ring-quantum dot chains. PHYSICAL REVIEW B, v. 90, n. 12, p. 8-pg., 2014-09-24. (12/02655-1)

LOPES-OLIVEIRA, VIVALDO; MAZUR, YURIY I.; DE SOUZA, LEONARDO DIAS; BERNARDES MARCAL, LUCAS A.; WU, JIANG; TEODORO, MARCIO DALDIN; MALACHIAS, ANGELO; DOROGAN, VITALIY G.; BENAMARA, MOURAD; TARASOV, GEORGIY G.; et al. Structural and magnetic confinement of holes in the spin-polarized emission of coupled quantum ring-quantum dot chains. Physical Review B, v. 90, n. 12, SEP 24 2014. (12/02655-1)

REBELLO SOUSA DIAS, M.; LOPEZ-RICHARD, V.; MARQUES, G. E.; ULLOA, S.. Spin filtering in nanowire directional coupler. EPL, v. 106, n. 1, APR 2014. (12/02655-1)

FERNANDES DOS SANTOS, L.; CASTELANO, L. K.; PADILHA, J. X.; PUSEP, Y.; MARQUES, G. E.; SMIRNOV, D.; BAKAROV, A. K.; TOROPOV, A. I.; LOPEZ-RICHARD, V.. Excitonic spin-splitting in quantum wells with a tilted magnetic field. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 28, n. 5, FEB 10 2016. (12/13052-6, 12/02655-1)

MAZUR, YU. I.; LOPES-OLIVEIRA, V.; DE SOUZA, L. D.; LOPEZ-RICHARD, V.; TEODORO, M. D.; DOROGAN, V. G.; BENAMARA, M.; WU, J.; TARASOV, G. G.; MAREGA, JR., E.; et al. Carrier transfer in vertically stacked quantum ring-quantum dot chains. Journal of Applied Physics, v. 117, n. 15, APR 21 2015. (13/18719-1, 12/02655-1, 14/07375-2)