Continuous Control and Enhancement of Excitonic Valley Polarization in Monolayer WSe2 by Electrostatic Doping
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Functional Materials"
DOI: 10.1002/adfm.201900260
Abstract: Enhancement and continuous control of the excitonic valley polarization in electrostatically doped monolayer WSe2 are demonstrated. Under excitation with circularly polarized light, 20% valley polarization of excitons around the charge neutrality condition at 70 K… read more here.
Keywords: valley; valley polarization; monolayer wse2; excitonic valley ... See more keywords
Enhanced Valley Polarization in WS2 /LaMnO3 Heterostructure.
Sign Up to like & getrecommendations! Published in 2022 at "Small"
DOI: 10.1002/smll.202106029
Abstract: Monolayer transition metal dichalcogenides have attracted great attention for potential applications in valleytronics. However, the valley polarization degree is usually not high because of the intervalley scattering. Here, a largely enhanced valley polarization up to… read more here.
Keywords: enhanced valley; polarization; ws2 lamno3; valley polarization ... See more keywords
Strain-Controlled Valley Polarization in a Graphene Under the Modulation of a Realistic Magnetic Field
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Superconductivity and Novel Magnetism"
DOI: 10.1007/s10948-021-05883-1
Abstract: Valley polarization is one basic concept in valleytronic device applications. However, the coexistence of this scenario in graphene under the joint modulation of a realistic magnetic field and a strain has not been reported. Therefore,… read more here.
Keywords: magnetic field; realistic magnetic; strain; valley polarization ... See more keywords
Transition-metal doping/adsorption induced valley polarization in Janus WSSe: First-principles calculations
Sign Up to like & getrecommendations! Published in 2019 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2019.06.051
Abstract: Abstract Generating valley polarization is the key process in valleytronics. In this work, the valley polarization properties of WSSe induced by transition-metal (TM) doping or adsorption are investigated through first principles calculations. Both the doping… read more here.
Keywords: transition metal; wsse; doping adsorption; polarization ... See more keywords
Effects of strain and stacking patterns on the electronic structure, valley polarization and magnetocrystalline anisotropy of layered VTe2
Sign Up to like & getrecommendations! Published in 2021 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2020.148098
Abstract: Abstract Effects of strain and stacking patterns on the electronic structure, valley polarization and magnetocrystalline anisotropy (MA) of layered VTe2 are studied by first principles calculations. The results show that the VTe2 monolayer possesses a… read more here.
Keywords: magnetocrystalline anisotropy; layered vte2; stacking patterns; polarization ... See more keywords
Observation and manipulation of valley polarization in two-dimensional H-Tl2O/CrI3 heterostructure
Sign Up to like & getrecommendations! Published in 2021 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2021.149604
Abstract: Abstract We report the two-dimensional (2D) H-Tl2O/CrI3 van der Waals (vdW) heterostructure as a promising valleytronics materials, and investigate the manipulation of valley polarization and valley spin splitting of it by using the first principle… read more here.
Keywords: cri3 heterostructure; manipulation; valley polarization; tl2o cri3 ... See more keywords
Valley polarized transport in graphene cross-junctions
Sign Up to like & getrecommendations! Published in 2020 at "Superlattices and Microstructures"
DOI: 10.1016/j.spmi.2020.106647
Abstract: Abstract Valley polarized transport was studied in graphene cross junctions consisting of a bilayer graphene device region connected to 4 monolayer graphene leads. Electrons injected from the armchair leads to the zigzag leads can be… read more here.
Keywords: cross junctions; valley polarized; graphene; valley polarization ... See more keywords
Spontaneous Valley Polarization Caused by Crystalline Symmetry Breaking in Nonmagnetic LaOMX2 Monolayers.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.2c03791
Abstract: In order to achieve valley polarization, breaking the time-reversal symmetry in two-dimensional hexagonal lattices with inversion asymmetry is the heart of current valleytronic research, which, however, has caused studies to stagnate due to the inevitable… read more here.
Keywords: symmetry; crystalline symmetry; valley polarization; nonmagnetic laomx2 ... See more keywords
First-Principles Prediction of a Room-Temperature Ferromagnetic Janus VSSe Monolayer with Piezoelectricity, Ferroelasticity, and Large Valley Polarization.
Sign Up to like & getrecommendations! Published in 2019 at "Nano letters"
DOI: 10.1021/acs.nanolett.8b05050
Abstract: Inspired by recent experiments on the successful fabrication of monolayer Janus transition-metal dichalcogenides [ Lu , A.-Y. ; Nat. Nanotechnol. 2017 , 12 , ( 8 ), 744 and ferromagnetic VSe2 [ Bonilla , M.… read more here.
Keywords: janus; vsse monolayer; valley polarization; monolayer ... See more keywords
Selective Growth and Robust Valley Polarization of Bilayer 3R-MoS2.
Sign Up to like & getrecommendations! Published in 2021 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.1c16889
Abstract: Noncentrosymmetric transition-metal dichalcogenides, particularly their 3R polymorphs, provide a robust setting for valleytronics. Here, we report on the selective growth of monolayers and bilayers of MoS2, which were acquired from two closely but differently oriented… read more here.
Keywords: selective growth; valley; valley polarization; bilayer ... See more keywords
Nonvolatile Electrical Valley Manipulation in WS2 by Ferroelectric Gating.
Sign Up to like & getrecommendations! Published in 2022 at "ACS nano"
DOI: 10.1021/acsnano.2c07469
Abstract: Valleytronics in transition metal dichalcogenides has been intensively investigated for potential applications in next-generation information storage, data processing, and signal transmission devices. Here a ferroelectric gating approach is engaged in achieving nonvolatile electrical tuning of… read more here.
Keywords: polarization; valley; ws2; nonvolatile electrical ... See more keywords