| Title |
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Strong valley Zeeman effect of dark excitons in monolayer transition metal dichalcogenides in a tilted magnetic field
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| Author |
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| Abstract |
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| The dependence of the excitonic photoluminescence (PL) spectrum of monolayer transition metal dichalcogenides (TMDs) on the tilt angle of an applied magnetic field is studied. Starting from a four-band Hamiltonian we construct a theory which quantitatively reproduces the available experimental PL spectra for perpendicular and in-plane magnetic fields. In the presence of a tilted magnetic field, we demonstrate that the dark exciton PL peaks brighten due to the in-plane component of the magnetic field and split for light with different circular polarizations as a consequence of the perpendicular component of the magnetic field. This splitting is more than twice as large as the splitting of the bright exciton peaks in tungsten-based TMDs. We propose an experimental setup that will allow for accessing the predicted splitting of the dark exciton peaks in the PL spectrum. |
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English
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| Source (journal) |
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Physical review B / American Physical Society. - New York, N.Y, 2016, currens |
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| Publication |
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New York, N.Y : American Physical Society, 2018
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| ISSN |
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2469-9969 [online]
2469-9950 [print]
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| Volume/pages |
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97:8(2018), 5 p.
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| Article Reference |
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081109
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| ISI |
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000425603600001
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E-only publicatie
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| Full text (Publisher's DOI) |
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| Full text (open access) |
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