Valleytronics in 2D materials

JR Schaibley, H Yu, G Clark, P Rivera, JS Ross… - Nature Reviews …, 2016 - nature.com
Semiconductor technology is currently based on the manipulation of electronic charge;
however, electrons have additional degrees of freedom, such as spin and valley, that can be …

Light–valley interactions in 2D semiconductors

KF Mak, D **ao, J Shan - Nature Photonics, 2018 - nature.com
The emergence of two-dimensional Dirac materials, particularly transition metal
dichalcogenides (TMDs), has reinvigorated interest in valleytronics, which utilizes the …

Photo-Induced Bandgap Renormalization Governs the Ultrafast Response of Single-Layer MoS2

EAA Pogna, M Marsili, D De Fazio, S Dal Conte… - ACS …, 2016 - ACS Publications
Transition metal dichalcogenides (TMDs) are emerging as promising two-dimensional (2D)
semiconductors for optoelectronic and flexible devices. However, a microscopic explanation …

Trion fine structure and coupled spin–valley dynamics in monolayer tungsten disulfide

G Plechinger, P Nagler, A Arora, R Schmidt… - Nature …, 2016 - nature.com
Monolayer transition-metal dichalcogenides have recently emerged as possible candidates
for valleytronic applications, as the spin and valley pseudospin are directly coupled and …

Phonon-assisted ultrafast charge transfer at van der Waals heterostructure interface

Q Zheng, WA Saidi, Y **e, Z Lan, OV Prezhdo… - Nano …, 2017 - ACS Publications
The van der Waals (vdW) interfaces of two-dimensional (2D) semiconductor are central to
new device concepts and emerging technologies in light-electricity transduction where the …

Opto-Valleytronic Spin Injection in Monolayer MoS2/Few-Layer Graphene Hybrid Spin Valves

YK Luo, J Xu, T Zhu, G Wu, EJ McCormick, W Zhan… - Nano …, 2017 - ACS Publications
Two-dimensional (2D) materials provide a unique platform for spintronics and valleytronics
due to the ability to combine vastly different functionalities into one vertically stacked …

Saturable absorption in 2D nanomaterials and related photonic devices

G Wang, AA Baker‐Murray… - Laser & Photonics …, 2019 - Wiley Online Library
Wide‐spectral saturable absorption (SA) has been experimentally demonstrated in two‐
dimensional (2D) nanomaterials with outstanding performance, such as low saturation …

Vibrational dichroism of chiral valley phonons

Y Pan, F Caruso - Nano Letters, 2023 - ACS Publications
Valley degrees of freedom in transition metal dichalcogenides thoroughly influence electron–
phonon coupling and its nonequilibrium dynamics. We conducted a first-principles study of …

The Role of Electronic and Phononic Excitation in the Optical Response of Monolayer WS2 after Ultrafast Excitation

C Ruppert, A Chernikov, HM Hill, AF Rigosi… - Nano Letters, 2017 - ACS Publications
Transient changes of the optical response of WS2 monolayers are studied by femtosecond
broadband pump–probe spectroscopy. Time-dependent absorption spectra are analyzed by …

Valley manipulation in monolayer transition metal dichalcogenides and their hybrid systems: status and challenges

S Zhao, X Li, B Dong, H Wang, H Wang… - Reports on Progress …, 2021 - iopscience.iop.org
Recently, the emerging conceptual valley-related devices have attracted much attention due
to the progress on generating, controlling, and detecting the valley degree of freedom in the …