Interaction-Induced Shubnikov-de Haas Oscillations in Optical Conductivity of Monolayer MoSe2

被引：55

作者：

Smolenski, T. ^{[1
,2
]}

Cotlet, O. ^{[1
]}

Popert, A. ^{[1
]}

Back, P. ^{[1
]}

Shimazaki, Y. ^{[1
]}

Knuppel, P. ^{[1
]}

Dietler, N. ^{[1
]}

Taniguchi, T. ^{[3
]}

Watanabe, K. ^{[3
]}

Kroner, M. ^{[1
]}

Imamoglu, A. ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Inst Quantum Elect, CH-8093 Zurich, Switzerland

[2] Univ Warsaw, Fac Phys, Inst Expt Phys, Pasteura 5, PL-02093 Warsaw, Poland

[3] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan

来源：

PHYSICAL REVIEW LETTERS | 2019年 / 123卷 / 09期

基金：

欧洲研究理事会; 瑞士国家科学基金会;

关键词：

2-DIMENSIONAL ELECTRON-GAS; VALLEY; MAGNETOOPTICS; EXCITATIONS; INTEGER; SPIN;

D O I：

10.1103/PhysRevLett.123.097403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report polarization-resolved resonant reflection spectroscopy of a charge-tunable atomically thin valley semiconductor hosting tightly bound excitons coupled to a dilute system of fully spin- and valley-polarized holes in the presence of a strong magnetic field. We find that exciton-hole interactions manifest themselves in hole-density dependent, Shubnikov-de Haas-like oscillations in the energy and line broadening of the excitonic resonances. These oscillations are evidenced to be precisely correlated with the occupation of Landau levels, thus demonstrating that strong interactions between the excitons and Landau-quantized itinerant carriers enable optical investigation of quantum-Hall physics in transition metal dichalcogenides.

引用

页数：6

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