Stress-optical studies of VI B transition metal dichalcogenides |
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| Authors: | M. Tanaka H. Fukutani G. Kuwabara |
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| Affiliation: | Department of Physics, Faculty of Science, University of Tokyo, Bunkyo-ku, Tokyo, Japan |
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| Abstract: | The effect of a uniaxial stress on the excitonic optical spectra are studied for MoS2, WS2, MoSe2 and WSe2. Stress dichroism appears in the A′, B′ excitons in diselenides, while it is absent in the A, B excitons in the four compounds. The A′, B′ excitons shift oppositely to the A, B excitons, indicating that A, B and A′, B′ are not pair excitons split by interlayer interaction. |
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