Triplet-to-Singlet Conversion in the Exciton System in β-ZnP_2 : Anti-Stokes Exciton Luminescence
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概要
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A new type of experiraaerat xx'as perforuned to inxzestigate the effective nonr?rdiative processcausing the fast decay of' the for bidden 1 s triplet exciton ltrutainescence xvitlt polarization E // b in,J-ZnP3. Excitation spectra of anti-Stokes l.s singlet excitort ltrtaairaescence xvitla E//c have beenutaeasured by xvarying tlae excitation energy xvitla E//b arotrnd the 1,s triplet exciton absorptionpeak xvhich is located abottt 2 uneV beloxv the singlet excitoza Itzrninescezace. A slaarp peakof excitation efficiency lasts been confirraaed ;tt the triplet exciton reson?rnce f'or the first tinae.Teraaperature dependence of the excitartion l)C211{ is in accordance xvitla tlae thertnal behavior ofthe singlet exciton polariton ltrnainescence both froum loxver- and trpper-brataches. This antiStokes acotrstic phonon scattering of triplet exciton into singlet states is one of the nastin catrsesof the short lifetitaae of triplet exciton in f3-ZnP). Spin flip taaechanistaa is briefly disctrssed.
- 社団法人日本物理学会の論文
- 1998-06-15
著者
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有本 收
京薬大物理
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Kondo K
Kyoto Univ. Kyoto Jpn
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NAKAMURA Kaizo
Department of Physics,Faculty of Science,Okayama University
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KONDO Kenjiro
National Laboratory for High Energy Physics
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Arimoto Osamu
Department of Physics, Faculty of Science, Okayama University
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Kondo Kunitaka
Institute Of Physics University Of Tsukuba
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Arimoto Osamu
Department Of Physics Faculty Of Science Okayama University
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Nakamura Kaizo
Department Of Physics Faci4ty Of Science Kyoto University
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SHIGOKU Minoru
Department of Physics, Okayama University
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KONDO Kanji
Department of Physics, Okayama University
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Kondo Kanji
Department Of Environmental Science & Technology Faculty Of Bioresources Mie University
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Shigoku Minoru
Department Of Physics Okayama University:(present) Ushio Inc.
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Nakamura Kaizo
Department of Quantum Materials Science, Institute of Technology, The University of Tokushima
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NAKAMURA Katsuhiro
The James Franck Institute, The University of Chicago : Fukuoka Institute of Technology
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