Trion and Biexciton in Monolayer Transition Metal Dichalcogenides

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作者：
Roman Ya Kezerashvili
Shalva M. Tsiklauri
机构：
[1] The City University of New York,New York City College of Technology
[2] The City University of New York,The Graduate School and University Center
[3] The City University of New York,Borough of Manhattan Community College
来源：
Few-Body Systems | 2017年 / 58卷
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摘要：
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.
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