The magnetic genome of two-dimensional van der Waals materials

QH Wang, A Bedoya-Pinto, M Blei, AH Dismukes… - ACS …, 2022 - ACS Publications
Magnetism in two-dimensional (2D) van der Waals (vdW) materials has recently emerged as
one of the most promising areas in condensed matter research, with many exciting emerging …

Intralayer charge-transfer moiré excitons in van der Waals superlattices

MH Naik, EC Regan, Z Zhang, YH Chan, Z Li, D Wang… - Nature, 2022 - nature.com
Moiré patterns of transition metal dichalcogenide heterobilayers have proved to be an ideal
platform on which to host unusual correlated electronic phases, emerging magnetism and …

Measuring the Exciton Binding Energy: Learning from a Decade of Measurements on Halide Perovskites and Transition Metal Dichalcogenides

KR Hansen, JS Colton… - Advanced Optical …, 2024 - Wiley Online Library
The exciton binding energy (Eb) is a key parameter that governs the physics of many
optoelectronic devices. At their best, trustworthy and precise measurements of Eb challenge …

Valley relaxation of resident electrons and holes in a monolayer semiconductor: Dependence on carrier density and the role of substrate-induced disorder

J Li, M Goryca, K Yumigeta, H Li, S Tongay… - Physical Review …, 2021 - APS
Using time-resolved optical Kerr rotation, we measure the low-temperature valley dynamics
of resident electrons and holes in exfoliated WSe 2 monolayers as a systematic function of …

[HTML][HTML] Magneto-optics of layered two-dimensional semiconductors and heterostructures: progress and prospects

A Arora - Journal of Applied Physics, 2021 - pubs.aip.org
Beginning with the “conventional” two-dimensional (2D) quantum wells based on III–V and II–
VI semiconductors in the 1970s, to the recent atomically thin sheets of van der Waals …

Many-Body Exciton and Intervalley Correlations in Heavily Electron-Doped WSe2 Monolayers

J Li, M Goryca, J Choi, X Xu, SA Crooker - Nano Letters, 2021 - ACS Publications
In monolayer transition-metal dichalcogenide semiconductors, many-body correlations can
manifest in optical spectra when electron–hole pairs (excitons) are photoexcited into a 2D …

Controlling exciton many-body states by the electric-field effect in monolayer

J Klein, A Hötger, M Florian, A Steinhoff… - Physical Review …, 2021 - APS
We report magneto-optical spectroscopy of gated monolayer MoS 2 in high magnetic fields
up to 28 T and obtain new insights on the many-body interaction of neutral and charged …

Mott-moiré excitons

TS Huang, YZ Chou, CL Baldwin, F Wu, M Hafezi - Physical Review B, 2023 - APS
We develop a systematic theory for excitons subject to Fermi-Hubbard physics in moiré
twisted transition metal dichalcogenides (TMDs). Specifically, we consider excitons from two …

Optically controllable magnetism in atomically thin semiconductors

K Hao, R Shreiner, A Kindseth, AA High - Science Advances, 2022 - science.org
We report evidence that ferromagnetic order in electrostatically doped, monolayer transition
metal dichalcogenide (TMD) semiconductors can be stabilized and controlled at zero …

Robust Quantum Hall Ferromagnetism near a Gate-Tuned Landau Level Crossing

MK Ma, C Wang, YJ Chung, LN Pfeiffer, KW West… - Physical review …, 2022 - APS
In a low-disorder two-dimensional electron system, when two Landau levels of opposite spin
or pseudospin cross at the Fermi level, the dominance of the exchange energy can lead to a …