arXiv Open Access 2021

Electrostatic control of the trion fine structure in transition metal dichalcogenide monolayers

Yaroslav V. Zhumagulov Alexei Vagov Dmitry R. Gulevich Vasili Perebeinos

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Abstrak

Charged excitons (trions) are essential for the optical spectra in low dimensional doped monolayers (ML) of transitional metal dichalcogenides (TMDC). Using a direct diagonalization of the three-body Hamiltonian, we explore the low-lying trion states in four types of TMDC MLs. We show that the trions fine structure results from the interplay between the spin-valley fine structure of the single-particle bands and the exchange interaction between the composing particles. We demonstrate that by variations of the doping and dielectric environment, trion energy fine structure can be tuned, leading to anti-crossing of the bright and dark states with substantial implications for the optical spectra of TMDC MLs.

Topik & Kata Kunci

cond-mat.mtrl-sci cond-mat.mes-hall cond-mat.str-el

Penulis (4)

Yaroslav V. Zhumagulov

Alexei Vagov

Dmitry R. Gulevich

Vasili Perebeinos

Format Sitasi

APA MLA BibTeX

Zhumagulov, Y.V., Vagov, A., Gulevich, D.R., Perebeinos, V. (2021). Electrostatic control of the trion fine structure in transition metal dichalcogenide monolayers. https://arxiv.org/abs/2104.11800

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Informasi Jurnal

Tahun Terbit: 2021
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓