Trion and Biexciton in Monolayer Transition Metal Dichalcogenides

We study the trion and biexciton in transition metal dichalcogenides monolayers within the framework of a nonrelativistic potential model using the method of hyperspherical harmonics (HH). We solve the three- and four-body Schrödinger equations with the Keldysh potential by expanding the wave functi...

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Bibliographic Details
Published in:Few-body systems 2017-01, Vol.58 (1), p.1, Article 18
Main Authors: Kezerashvili, Roman Ya, Tsiklauri, Shalva M.
Format: Article
Language:English
Subjects:
Atomic
Few-body systems
Hadrons
Harmonic analysis
Heavy Ions
Metals
Molecular
Nuclear Physics
Optical and Plasma Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
The 23rd European Conference on Few-Body Problems in Physics
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Summary:We study the trion and biexciton in transition metal dichalcogenides monolayers within the framework of a nonrelativistic potential model using the method of hyperspherical harmonics (HH). We solve the three- and four-body Schrödinger equations with the Keldysh potential by expanding the wave functions of a trion and biexciton in terms of the antisymmetrized HH. Results of the calculations for the ground state energies are in good agreement with similar calculations for the Keldysh potential and in reasonable agreement with experimental measurements of trion and biexciton binding energies.
ISSN:0177-7963
1432-5411
DOI:10.1007/s00601-016-1186-x