Strong biexcitonic effects and exciton-exciton correlations in ZnO

K. Hazu; T. Sota; K. Suzuki; S. Adachi; S. F. Chichibu; G. Cantwell; D. B. Eason; D. C. Reynolds; C. W. Litton

Strong biexcitonic effects and exciton-exciton correlations in ZnO

K. Hazu, T. Sota, K. Suzuki, S. Adachi, S. F. Chichibu, G. Cantwell, D. B. Eason, D. C. Reynolds, C. W. Litton

IMRAM - Division of Measurements

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Abstract

We have studied experimentally biexcitonic states of ZnO of rather high quality in the low exciton density limit by means of time-integrated and spectrally-resolved four-wave mixing (FWM). FWM emission signals due to biexcitons consisting of two A-hole excitons (AA biexcitons), an A-hole and a B-hole exciton (AB biexcitons), and two B-hole excitons (BB biexcitons) have been clearly observed according to polarization selection rules. The obtained binding energies for AA, AB, and BB biexcitons are 15.6, 16.6, and 4.7 meV, respectively. A brief discussion is also given on the contribution of biexciton and two-pair continuum resonances to the FWM signal.

Original language	English
Article number	033205
Pages (from-to)	332051-332054
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	68
Issue number	3
Publication status	Published - 2003 Jul

Cite this

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title = "Strong biexcitonic effects and exciton-exciton correlations in ZnO",

abstract = "We have studied experimentally biexcitonic states of ZnO of rather high quality in the low exciton density limit by means of time-integrated and spectrally-resolved four-wave mixing (FWM). FWM emission signals due to biexcitons consisting of two A-hole excitons (AA biexcitons), an A-hole and a B-hole exciton (AB biexcitons), and two B-hole excitons (BB biexcitons) have been clearly observed according to polarization selection rules. The obtained binding energies for AA, AB, and BB biexcitons are 15.6, 16.6, and 4.7 meV, respectively. A brief discussion is also given on the contribution of biexciton and two-pair continuum resonances to the FWM signal.",

author = "K. Hazu and T. Sota and K. Suzuki and S. Adachi and Chichibu, {S. F.} and G. Cantwell and Eason, {D. B.} and Reynolds, {D. C.} and Litton, {C. W.}",

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language = "English",

volume = "68",

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journal = "Physical Review B - Condensed Matter and Materials Physics",

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TY - JOUR

T1 - Strong biexcitonic effects and exciton-exciton correlations in ZnO

AU - Hazu, K.

AU - Sota, T.

AU - Suzuki, K.

AU - Adachi, S.

AU - Chichibu, S. F.

AU - Cantwell, G.

AU - Eason, D. B.

AU - Reynolds, D. C.

AU - Litton, C. W.

PY - 2003/7

Y1 - 2003/7

N2 - We have studied experimentally biexcitonic states of ZnO of rather high quality in the low exciton density limit by means of time-integrated and spectrally-resolved four-wave mixing (FWM). FWM emission signals due to biexcitons consisting of two A-hole excitons (AA biexcitons), an A-hole and a B-hole exciton (AB biexcitons), and two B-hole excitons (BB biexcitons) have been clearly observed according to polarization selection rules. The obtained binding energies for AA, AB, and BB biexcitons are 15.6, 16.6, and 4.7 meV, respectively. A brief discussion is also given on the contribution of biexciton and two-pair continuum resonances to the FWM signal.

AB - We have studied experimentally biexcitonic states of ZnO of rather high quality in the low exciton density limit by means of time-integrated and spectrally-resolved four-wave mixing (FWM). FWM emission signals due to biexcitons consisting of two A-hole excitons (AA biexcitons), an A-hole and a B-hole exciton (AB biexcitons), and two B-hole excitons (BB biexcitons) have been clearly observed according to polarization selection rules. The obtained binding energies for AA, AB, and BB biexcitons are 15.6, 16.6, and 4.7 meV, respectively. A brief discussion is also given on the contribution of biexciton and two-pair continuum resonances to the FWM signal.

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SN - 1098-0121

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JF - Physical Review B - Condensed Matter and Materials Physics

IS - 3

M1 - 033205

ER -

Strong biexcitonic effects and exciton-exciton correlations in ZnO

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