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Tailoring spin-dependent and optical properties in semiconductor nanostrucures

Grant number: 13/23393-8
Support Opportunities:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): February 10, 2014
Effective date (End): February 09, 2015
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Guilherme Matos Sipahi
Grantee:Paulo Eduardo de Faria Junior
Supervisor: Igor Zutic
Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Research place: University at Buffalo (UB), United States  
Associated to the scholarship:12/05618-0 - Spin dynamics and spin transport in reduced dimensions: from graphene to spin lasers, BP.DR


In this project we propose to continue a collaborative research between the groups of Prof. Sipahi and Prof. Zutic in guiding the research of Mr. Faria Junior. During his one year stay in Buffalo, we will focus on spin-dependent and optical properties of different nanomaterials with quantum confinement: semiconductor quantum wells, freestanding and core-shell nanowires and colloidal quantum dots. Revealing the electronic structure in the systems of interest, comprised of Si, Ge and III-V/II-VI semiconductors, provides already important clues and guidance for many spin-dependent and optical properties, for instance, optical spin injection and spin relaxation. This project has two important features: the understanding of fundamental properties of spin and light in nanostructures and, with this knowledge, the investigation of novel classes of spin-devices, extending the possibilities for spintronic applications. Specifically, this proposal will help to critically evaluate the feasibility of semiconductor spin lasers, spin interconnects and spin phenomena in colloidal quantum dots. (AU)

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Scientific publications (5)
(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)
FARIA JUNIOR, PAULO E.; XU, GAOFENG; LEE, JEONGSU; GERHARDT, NILS C.; SIPAHI, GUILHERME M.; ZUTIC, IGOR. Toward high-frequency operation of spin lasers. Physical Review B, v. 92, n. 7, . (12/05618-0, 13/23393-8, 11/19333-4)
FARIA JUNIOR, PAULO E.; XU, GAOFENG; LEE, JEONGSU; GERHARDT, NILS C.; SIPAHI, GUILHERME M.; ZUTIC, IGOR. Toward high-frequency operation of spin lasers. PHYSICAL REVIEW B, v. 92, n. 7, p. 14-pg., . (12/05618-0, 13/23393-8, 11/19333-4)
ZUTIC, IGOR; XU, GAOFENG; LINDEMANN, MARKUS; FARIA JUNIOR, PAULO E.; LEE, JEONGSU; LABINAC, VELIMIR; STOJSIC, KRISTIAN; SIPAHI, GUILHERME M.; HOFMANN, MARTIN R.; GERHARDT, NILS C.. Spin -lasers: spintronics beyond magnetoresistance. Solid State Communications, v. 316, . (12/05618-0, 13/23393-8)
FARIA JUNIOR, P. E.; CAMPOS, T.; SIPAHI, G. M.. Interband polarized absorption in InP polytypic superlattices. Journal of Applied Physics, v. 116, n. 19, . (12/05618-0, 13/23393-8, 11/19333-4)
BASTOS, CARLOS M. O.; SABINO, FERNANDO P.; FARIA JUNIOR, PAULO E.; CAMPOS, TIAGO; DA SILVA, JUAREZ L. F.; SIPAHI, GUILHERME M.. Stability and accuracy control of k center dot p parameters. Semiconductor Science and Technology, v. 31, n. 10, . (12/05618-0, 13/23393-8, 11/19333-4)

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