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Chiappe, G.; Fernández-Rossier, J.; Louis, E.; Anda, E.V. "Anisotropic exchange interaction induced by a single photon in semiconductor microcavities" (2005) Physical Review B - Condensed Matter and Materials Physics. 72(24)
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Abstract:

We investigate coupling of localized spins in a semiconductor quantum dot embedded in a microcavity. The lowest cavity mode and the quantum dot exciton are coupled and close in energy, forming a polariton. The fermions forming the exciton interact with localized spins via exchange. Exact diagonalization of a Hamiltonian in which photons, spins, and excitons are treated quantum mechanically shows that a single polariton induces a sizable indirect anisotropic exchange interaction between spins. At sufficiently low temperatures strong ferromagnetic correlations show up without an appreciable increase in exciton population. In the case of a (Cd,Mn)Te quantum dot, Mn-Mn ferromagnetic coupling is still significant at 1K: spin-spin correlation around 3 for exciton occupation smaller than 0.3. We find that the interaction mediated by photon-polaritons is 10 times stronger than the one induced by a classical field for equal Rabi splitting. © 2005 The American Physical Society.

Registro:

Documento: Artículo
Título:Anisotropic exchange interaction induced by a single photon in semiconductor microcavities
Autor:Chiappe, G.; Fernández-Rossier, J.; Louis, E.; Anda, E.V.
Filiación:Departamento de Física Aplicada, Instituto Universitario de Materiales and Unidad Asociada del CSIC, Universidad de Alicante, San Vicente del Raspeig, Alicante 03690, Spain
Departamento de Física J.J. Giambiagi, Facultad de Ciencias Exactas, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Departamento de Física, Pontificia Universidade Católica Do Rio de Janeiro (PUC-Rio), Caixa Postal 38071, 22452-970, Rio de Janeiro, Brazil
Año:2005
Volumen:72
Número:24
DOI: http://dx.doi.org/10.1103/PhysRevB.72.245311
Título revista:Physical Review B - Condensed Matter and Materials Physics
Título revista abreviado:Phys. Rev. B Condens. Matter Mater. Phys.
ISSN:10980121
CODEN:PRBMD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v72_n24_p_Chiappe

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Citas:

---------- APA ----------
Chiappe, G., Fernández-Rossier, J., Louis, E. & Anda, E.V. (2005) . Anisotropic exchange interaction induced by a single photon in semiconductor microcavities. Physical Review B - Condensed Matter and Materials Physics, 72(24).
http://dx.doi.org/10.1103/PhysRevB.72.245311
---------- CHICAGO ----------
Chiappe, G., Fernández-Rossier, J., Louis, E., Anda, E.V. "Anisotropic exchange interaction induced by a single photon in semiconductor microcavities" . Physical Review B - Condensed Matter and Materials Physics 72, no. 24 (2005).
http://dx.doi.org/10.1103/PhysRevB.72.245311
---------- MLA ----------
Chiappe, G., Fernández-Rossier, J., Louis, E., Anda, E.V. "Anisotropic exchange interaction induced by a single photon in semiconductor microcavities" . Physical Review B - Condensed Matter and Materials Physics, vol. 72, no. 24, 2005.
http://dx.doi.org/10.1103/PhysRevB.72.245311
---------- VANCOUVER ----------
Chiappe, G., Fernández-Rossier, J., Louis, E., Anda, E.V. Anisotropic exchange interaction induced by a single photon in semiconductor microcavities. Phys. Rev. B Condens. Matter Mater. Phys. 2005;72(24).
http://dx.doi.org/10.1103/PhysRevB.72.245311