Spin response to localized pumps : Exciton polaritons versus electrons and holes. / Sacksteder Iv, Vincent; Pervishko, A. A. ; Shelykh, I. A. .

In: Physical Review B, Vol. 93, No. 8, 085311, 18.02.2016, p. 1-22.

Research output: Contribution to journalArticlepeer-review

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Spin response to localized pumps : Exciton polaritons versus electrons and holes. / Sacksteder Iv, Vincent; Pervishko, A. A. ; Shelykh, I. A. .

In: Physical Review B, Vol. 93, No. 8, 085311, 18.02.2016, p. 1-22.

Research output: Contribution to journalArticlepeer-review

Harvard

Sacksteder Iv, V, Pervishko, AA & Shelykh, IA 2016, 'Spin response to localized pumps: Exciton polaritons versus electrons and holes', Physical Review B, vol. 93, no. 8, 085311, pp. 1-22. https://doi.org/10.1103/PhysRevB.93.085311

APA

Vancouver

Author

Sacksteder Iv, Vincent ; Pervishko, A. A. ; Shelykh, I. A. . / Spin response to localized pumps : Exciton polaritons versus electrons and holes. In: Physical Review B. 2016 ; Vol. 93, No. 8. pp. 1-22.

BibTeX

@article{a2dedb21d58444c983cdfa899cfa42b5,
title = "Spin response to localized pumps: Exciton polaritons versus electrons and holes",
abstract = "Polariton polarization can be described in terms of a pseudospin which can be oriented along the x,y, or z axis, similarly to electron and hole spin. Unlike electrons and holes where time-reversal symmetry requires that the spin-orbit interaction be odd in the momentum, the analog of the spin-orbit interaction for polaritons, the so-called TE-TM splitting, is even in the momentum. We calculate and compare spin transport of polariton, electron, and hole systems, in the diffusive regime of many scatterings. After dimensional rescaling diffusive systems with spatially uniform particle densities have identical dynamics, regardless of the particle type. Differences between the three particles appear in spatially nonuniform systems, with pumps at a specific localized point. We consider both oscillating pumps and transient (delta function) pumps. In such systems each particle type produces distinctive spin patterns. The particles can be distinguished by their differing spatial multipole character, their response and resonances in a perpendicular magnetic field, and their relative magnitude which is largest for electrons and weakest for holes. These patterns are manifested both in response to unpolarized pumps which produce in-plane and perpendicular spin signals, and to polarized pumps where the spin precesses from in-plane to out-of-plane and vice versa. These results will be useful for designing systems with large spin polarization signals, for identifying the dominant spin-orbit interaction and measuring subdominant terms in experimental devices, and for measuring the scattering time and the spin-orbit coupling's magnitude.",
author = "{Sacksteder Iv}, Vincent and Pervishko, {A. A.} and Shelykh, {I. A.}",
year = "2016",
month = feb,
day = "18",
doi = "10.1103/PhysRevB.93.085311",
language = "English",
volume = "93",
pages = "1--22",
journal = "Physical Review B",
issn = "1098-0121",
publisher = "American Physical Society",
number = "8",

}

RIS

TY - JOUR

T1 - Spin response to localized pumps

T2 - Exciton polaritons versus electrons and holes

AU - Sacksteder Iv, Vincent

AU - Pervishko, A. A.

AU - Shelykh, I. A.

PY - 2016/2/18

Y1 - 2016/2/18

N2 - Polariton polarization can be described in terms of a pseudospin which can be oriented along the x,y, or z axis, similarly to electron and hole spin. Unlike electrons and holes where time-reversal symmetry requires that the spin-orbit interaction be odd in the momentum, the analog of the spin-orbit interaction for polaritons, the so-called TE-TM splitting, is even in the momentum. We calculate and compare spin transport of polariton, electron, and hole systems, in the diffusive regime of many scatterings. After dimensional rescaling diffusive systems with spatially uniform particle densities have identical dynamics, regardless of the particle type. Differences between the three particles appear in spatially nonuniform systems, with pumps at a specific localized point. We consider both oscillating pumps and transient (delta function) pumps. In such systems each particle type produces distinctive spin patterns. The particles can be distinguished by their differing spatial multipole character, their response and resonances in a perpendicular magnetic field, and their relative magnitude which is largest for electrons and weakest for holes. These patterns are manifested both in response to unpolarized pumps which produce in-plane and perpendicular spin signals, and to polarized pumps where the spin precesses from in-plane to out-of-plane and vice versa. These results will be useful for designing systems with large spin polarization signals, for identifying the dominant spin-orbit interaction and measuring subdominant terms in experimental devices, and for measuring the scattering time and the spin-orbit coupling's magnitude.

AB - Polariton polarization can be described in terms of a pseudospin which can be oriented along the x,y, or z axis, similarly to electron and hole spin. Unlike electrons and holes where time-reversal symmetry requires that the spin-orbit interaction be odd in the momentum, the analog of the spin-orbit interaction for polaritons, the so-called TE-TM splitting, is even in the momentum. We calculate and compare spin transport of polariton, electron, and hole systems, in the diffusive regime of many scatterings. After dimensional rescaling diffusive systems with spatially uniform particle densities have identical dynamics, regardless of the particle type. Differences between the three particles appear in spatially nonuniform systems, with pumps at a specific localized point. We consider both oscillating pumps and transient (delta function) pumps. In such systems each particle type produces distinctive spin patterns. The particles can be distinguished by their differing spatial multipole character, their response and resonances in a perpendicular magnetic field, and their relative magnitude which is largest for electrons and weakest for holes. These patterns are manifested both in response to unpolarized pumps which produce in-plane and perpendicular spin signals, and to polarized pumps where the spin precesses from in-plane to out-of-plane and vice versa. These results will be useful for designing systems with large spin polarization signals, for identifying the dominant spin-orbit interaction and measuring subdominant terms in experimental devices, and for measuring the scattering time and the spin-orbit coupling's magnitude.

U2 - 10.1103/PhysRevB.93.085311

DO - 10.1103/PhysRevB.93.085311

M3 - Article

VL - 93

SP - 1

EP - 22

JO - Physical Review B

JF - Physical Review B

SN - 1098-0121

IS - 8

M1 - 085311

ER -