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Nuclear spin switch in semiconductor quantum dots. / Tartakovskii, A. I.; Wright, T.; Russell, A. et al.
In:
Physical review letters, Vol. 98, No. 2, 12.01.2007, p. 026806 1-4.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Harvard
Tartakovskii, AI, Wright, T, Russell, A
, Falko, VI, Vankov, AB, Skiba-Szymanska, J, Drouzas, I, Kolodka, RS, Skolnick, MS, Fry, PW, Tahraoui, A, Liu, H-Y & Hopkinson, M 2007, '
Nuclear spin switch in semiconductor quantum dots.',
Physical review letters, vol. 98, no. 2, pp. 026806 1-4.
https://doi.org/10.1103/PhysRevLett.98.026806APA
Tartakovskii, A. I., Wright, T., Russell, A.
, Falko, V. I., Vankov, A. B., Skiba-Szymanska, J., Drouzas, I., Kolodka, R. S., Skolnick, M. S., Fry, P. W., Tahraoui, A., Liu, H.-Y., & Hopkinson, M. (2007).
Nuclear spin switch in semiconductor quantum dots. Physical review letters,
98(2), 026806 1-4.
https://doi.org/10.1103/PhysRevLett.98.026806Vancouver
Author
Bibtex
@article{01619c2e7dcc44f1a14188908be5074d,
title = "Nuclear spin switch in semiconductor quantum dots.",
abstract = "We show that by illuminating an InGaAs/GaAs self-assembled quantum dot with circularly polarized light, the nuclei of atoms constituting the dot can be driven into a bistable regime, in which either a thresholdlike enhancement or reduction of the local nuclear field by up to 3 T can be generated by varying the pumping intensity. The excitation power threshold for such a nuclear spin “switch” is found to depend on both the external magnetic and electric fields. The switch is shown to arise from the strong feedback of the nuclear spin polarization on the dynamics of the spin transfer from electrons to the nuclei of the dot.",
author = "Tartakovskii, {A. I.} and T. Wright and A. Russell and Falko, {V. I.} and Vankov, {A. B.} and J. Skiba-Szymanska and I. Drouzas and Kolodka, {R. S.} and Skolnick, {M. S.} and Fry, {P. W.} and A. Tahraoui and H.-Y. Liu and M. Hopkinson",
note = "Falko predicted a bistable behaviour of the nuclear spin polarisation in optically pumped semiconductor quantum dots in a magnetic field, which has been observed experimentally by M. Skolnick's group at Sheffield. Bistability is manifested via the polarisation switch and hysteresis which occur when varying the intensity of illumination. RAE_import_type : Journal article RAE_uoa_type : Physics",
year = "2007",
month = jan,
day = "12",
doi = "10.1103/PhysRevLett.98.026806",
language = "English",
volume = "98",
pages = "026806 1--4",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",
number = "2",
}
RIS
TY - JOUR
T1 - Nuclear spin switch in semiconductor quantum dots.
AU - Tartakovskii, A. I.
AU - Wright, T.
AU - Russell, A.
AU - Falko, V. I.
AU - Vankov, A. B.
AU - Skiba-Szymanska, J.
AU - Drouzas, I.
AU - Kolodka, R. S.
AU - Skolnick, M. S.
AU - Fry, P. W.
AU - Tahraoui, A.
AU - Liu, H.-Y.
AU - Hopkinson, M.
N1 - Falko predicted a bistable behaviour of the nuclear spin polarisation in optically pumped semiconductor quantum dots in a magnetic field, which has been observed experimentally by M. Skolnick's group at Sheffield. Bistability is manifested via the polarisation switch and hysteresis which occur when varying the intensity of illumination. RAE_import_type : Journal article RAE_uoa_type : Physics
PY - 2007/1/12
Y1 - 2007/1/12
N2 - We show that by illuminating an InGaAs/GaAs self-assembled quantum dot with circularly polarized light, the nuclei of atoms constituting the dot can be driven into a bistable regime, in which either a thresholdlike enhancement or reduction of the local nuclear field by up to 3 T can be generated by varying the pumping intensity. The excitation power threshold for such a nuclear spin “switch” is found to depend on both the external magnetic and electric fields. The switch is shown to arise from the strong feedback of the nuclear spin polarization on the dynamics of the spin transfer from electrons to the nuclei of the dot.
AB - We show that by illuminating an InGaAs/GaAs self-assembled quantum dot with circularly polarized light, the nuclei of atoms constituting the dot can be driven into a bistable regime, in which either a thresholdlike enhancement or reduction of the local nuclear field by up to 3 T can be generated by varying the pumping intensity. The excitation power threshold for such a nuclear spin “switch” is found to depend on both the external magnetic and electric fields. The switch is shown to arise from the strong feedback of the nuclear spin polarization on the dynamics of the spin transfer from electrons to the nuclei of the dot.
U2 - 10.1103/PhysRevLett.98.026806
DO - 10.1103/PhysRevLett.98.026806
M3 - Journal article
VL - 98
SP - 268061
EP - 268064
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 2
ER -
