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Title: Magnetooptics of Exciton Rydberg States in a Monolayer Semiconductor

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [4];  [2];  [1]
  1. National High Magnetic Field Lab. (MagLab), Los Alamos, NM (United States)
  2. Univ. of Washington, Seattle, WA (United States). Dept. of Physics
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Rice Univ., Houston, TX (United States). Dept. of Electrical and Computer Engineering. Dept. of Physics and Astronomy. Dept. of Materials Science and NanoEngineering

In this paper, we report 65 T magnetoabsorption spectroscopy of exciton Rydberg states in the archetypal monolayer semiconductor WSe 2 . The strongly field-dependent and distinct energy shifts of the 2 s , 3 s , and 4 s excited neutral excitons permits their unambiguous identification and allows for quantitative comparison with leading theoretical models. Both the sizes (via low-field diamagnetic shifts) and the energies of the n s exciton states agree remarkably well with detailed numerical simulations using the nonhydrogenic screened Keldysh potential for 2D semiconductors. Finally and moreover, at the highest magnetic fields, the nearly linear diamagnetic shifts of the weakly bound 3 s and 4 s excitons provide a direct experimental measure of the exciton’s reduced mass m r = 0.20 ± 0.01 m 0 .

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Univ. of Washington, Seattle, WA (United States); National High Magnetic Field Lab. (MagLab), Los Alamos, NM (United States); Rice Univ., Houston, TX (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); US Air Force Office of Scientific Research (AFOSR)
Grant/Contract Number:
AC52-06NA25396; SC0018171; DMR-1157490; FA9550-14-1-0268
OSTI ID:
1475347
Alternate ID(s):
OSTI ID: 1419092
Report Number(s):
LA-UR-17-27395
Journal Information:
Physical Review Letters, Vol. 120, Issue 5; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 159 works
Citation information provided by
Web of Science

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Cited By (35)

Dynamics of Free and Localized Excitons in Two‐Dimensional Transition Metal Dichalcogenides journal February 2019
Biexcitons in monolayer transition metal dichalcogenides tuned by magnetic fields journal September 2018
Upconverted electroluminescence via Auger scattering of interlayer excitons in van der Waals heterostructures journal May 2019
Revealing exciton masses and dielectric properties of monolayer semiconductors with high magnetic fields journal September 2019
Valley phonons and exciton complexes in a monolayer semiconductor journal January 2020
Dielectric disorder in two-dimensional materials journal August 2019
Light–valley interactions in 2D semiconductors journal July 2018
Visualizing electrostatic gating effects in two-dimensional heterostructures journal July 2019
Exciton diffusion in WSe 2 monolayers embedded in a van der Waals heterostructure journal April 2018
Magneto-spectroscopy of exciton Rydberg states in a CVD grown WSe 2 monolayer journal June 2019
Singlet and triplet trions in WS 2 monolayer encapsulated in hexagonal boron nitride journal June 2018
Brightened spin-triplet interlayer excitons and optical selection rules in van der Waals heterobilayers journal May 2018
Dielectric impact on exciton binding energy and quasiparticle bandgap in monolayer WS 2 and WSe 2 journal March 2019
Probing the exciton k-space dynamics in monolayer tungsten diselenides journal March 2019
High optical quality of MoS 2 monolayers grown by chemical vapor deposition journal November 2019
Theory of coherent pump–probe spectroscopy in monolayer transition metal dichalcogenides journal December 2019
Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response journal July 2019
k · p theory for phosphorene: Effective g -factors, Landau levels, and excitons journal September 2019
Multiphonon Raman scattering mediated by the exciton states in monolayer transition metal chalcogenides journal September 2019
Comment on “Excitons, trions, and biexcitons in transition-metal dichalcogenides: Magnetic-field dependence” journal March 2020
Monolayer transition metal dichalcogenides in strong magnetic fields: Validating the Wannier model using a microscopic calculation journal January 2019
Common nonlinear features and spin-orbit coupling effects in the Zeeman splitting of novel wurtzite materials journal May 2019
Exciton States in Monolayer MoSe 2 and MoTe 2 Probed by Upconversion Spectroscopy journal September 2018
Common nonlinear features and spin-orbit coupling effects in the Zeeman splitting of novel wurtzite materials text January 2019
Strain-tunable orbital, spin-orbit, and optical properties of monolayer transition-metal dichalcogenides text January 2019
Common nonlinear features and spin-orbit coupling effects in the Zeeman splitting of novel wurtzite materials text January 2019
k.p theory for phosphorene: Effective g-factors, Landau levels, and excitons text January 2019
Probing Many-Body Interactions in Monolayer Transition-Metal Dichalcogenides text January 2016
Dynamical screening in monolayer transition-metal dichalcogenides and its manifestations in the exciton spectrum text January 2018
Singlet and triplet trions in WS$_2$ monolayer encapsulated in hexagonal boron nitride text January 2018
Brightened spin-triplet interlayer excitons and optical selection rules in van der Waals heterobilayers text January 2018
Controlling excitons in an atomically thin membrane with a mirror text January 2019
Intrinsic Lifetime of Higher Excitonic States in Tungsten Diselenide Monolayers text January 2019
Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response text January 2019
Magneto-spectroscopy of exciton Rydberg states in a CVD grown WSe2 monolayer text January 2019