Spin relaxation rates in quasi-one-dimensional coupled quantum dots

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We study theoretically the electron-spin relaxation rate in quasi-one-dimensional coupled semiconductor quantum dots. The cross-sectional confinement or shape of these nanorods can be chosen so that either the Rashba or the Dresselhaus spin-orbit coupling is present. We consider acoustic-phonon-medi...

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Autor principal: Romano, C.L
Otros Autores: Tamborenea, P.I, Ulloa, S.E
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2006
Acceso en línea:Registro en Scopus
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100 1 |a Romano, C.L. 
245 1 0 |a Spin relaxation rates in quasi-one-dimensional coupled quantum dots 
260 |c 2006 
270 1 0 |m Romano, C.L.; Department of Physics J. J. Giambiagi, University of Buenos Aires, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina; email: carlu@df.uba.ar 
506 |2 openaire  |e Política editorial 
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520 3 |a We study theoretically the electron-spin relaxation rate in quasi-one-dimensional coupled semiconductor quantum dots. The cross-sectional confinement or shape of these nanorods can be chosen so that either the Rashba or the Dresselhaus spin-orbit coupling is present. We consider acoustic-phonon-mediated transitions between the ground state and the next two higher-energy eigenstates. These three states are nondegenerate due to the interdot coupling, which causes a symmetric-antisymmetric gap, and a competition with the Zeeman splitting. With Rashba coupling and at fixed Zeeman splitting the two upper states display an anticrossing versus interdot barrier width, which is shown to be associated with a sharp cusp in the spin relaxation rate. © 2006 The American Physical Society.  |l eng 
593 |a Department of Physics J. J. Giambiagi, University of Buenos Aires, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina 
593 |a Department of Physics and Astronomy, Nanoscale and Quantum Phenomena Institute, Ohio University, Athens, OH 45701-2979, United States 
700 1 |a Tamborenea, P.I. 
700 1 |a Ulloa, S.E. 
773 0 |d 2006  |g v. 74  |k n. 15  |p Phys. Rev. B Condens. Matter Mater. Phys.  |x 10980121  |t Physical Review B - Condensed Matter and Materials Physics 
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856 4 0 |u https://doi.org/10.1103/PhysRevB.74.155433  |y DOI 
856 4 0 |u https://hdl.handle.net/20.500.12110/paper_10980121_v74_n15_p_Romano  |y Handle 
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