arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1701.01686cond-mat.mes-hall
收藏

过渡金属二硫属化合物单层膜中的三电子和双激子

Trion and Biexciton in Monolayer Transition Metal Dichalcogenides

Roman Ya. Kezerashvili, Shalva M. Tsiklauri

摘要:

在非相对论势模型的框架下,利用超球谐方法研究了过渡金属二硫属化物单分子膜中的三电子和双激子。通过将三子和双激子的波函数按反对称HH展开,求解了具有Keldysh势的三体和四体薛定谔方程。基态能量的计算结果与Keldysh势的类似计算结果吻合良好,并且与三电子和双激子结合能的实验测量值吻合合理。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑