Exciton Bose-Einstein Condensation in Transition Metal Dichalcogenide Monolayer under In-Plane Magnetic Fields

王登峰 ¹陈颖达 ¹牛智川 ¹娄文凯 ¹常凯²

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作者信息

1. SKLSM,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;College of Materials Science and Opto-electronic Technology,Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China
2. SKLSM,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;College of Materials Science and Opto-electronic Technology,Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;School of Physics,Zhejiang University,Hangzhou 310027,China
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Abstract

Based on the Gross-Pitaevskii equation,we theoretically investigate exciton Bose-Einstein condensation(BEC)in transition metal dichalcogenide monolayers(TMDC-MLs)under in-plane magnetic fields.We observe that the in-plane magnetic fields exert a strong influence on the exciton BEC wave functions in TMDC-MLs because of the mixing of the bright and dark exciton states via Zeeman effect.This leads to the brightening of the dark exciton BEC states.The competition between the dipole-dipole interactions caused by the long-range Coulomb interaction and the Zeeman effect induced by the in-plane magnetic fields can effectively regulate dark exciton BEC states.Our findings emphasize the utility of TMD-MLs as platforms for investigating collective phenomenon involving excited states.

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基金项目

国家自然科学基金(92265203)

国家自然科学基金(11974340)

中国科学院战略规划重点项目(XDB0460000)

中国科学院战略规划重点项目(XDB28000000)

中国科学院战略规划重点项目(XDPB22)

中国科学院项目(QYZDJ-SSW-SYS001)

国家重点研发计划(2018YFA0306101)

出版年

2024

中国物理快报(英文版)

中国科学院物理研究所,中国物理学会

中国物理快报(英文版)

CSTPCDEI

影响因子：0.515

ISSN：0256-307X

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