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Ferroelectrics meet transition metal dichalcogenides
Nature Reviews Materials, 2023openaire +3 more sources
Layered Transition Metal Dichalcogenides
1992Among the layered transition metal dichalcogenides, TaS2 and TaSe2 have attracted considerable attention because they exist in various polytypes and exhibit a rich variety of charge density wave (CDW) phenomena. Moreover, these materials are in some sense prototypical for nuclear spectroscopy on CDW systems because 181 Ta happens to be a suitable ...
Michio Naito +2 more
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Excited Biexcitons in Transition Metal Dichalcogenides
Nano Letters, 2015The Stochastic Variational Method (SVM) is used to show that the effective mass model correctly estimates the binding energies of excitons and trions but fails to predict the experimental binding energy of the biexciton. Using high-accuracy variational calculations, it is demonstrated that the biexciton binding energy in transition metal ...
David K, Zhang +2 more
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Flexoelectricity in Monolayer Transition Metal Dichalcogenides
The Journal of Physical Chemistry Letters, 2018Flexoelectricity, the coupling effect of the strain gradient and charge polarization, is an important route to tune electronic properties of low-dimensional materials. Here our extensive first-principles calculations reveal that structural wrinkling and corrugation will cause significant flexoelectricity in transition metal dichalcogenide (TMD ...
Wenhao Shi +3 more
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Excitons in monolayer transition metal dichalcogenides
Journal of Physics: Condensed Matter, 2015We theoretically investigate the exciton formed with two massive Dirac particles in monolayer [Formula: see text] and other transition metal dichalcogenides as well as two layers separated by a dielectric layer. In the low-energy limit, the separation of the center-of-mass and relative motions is obtained.
J, Li, Y L, Zhong, Dong, Zhang
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Metal to semiconductor transition in metallic transition metal dichalcogenides
Journal of Applied Physics, 2013We report on tuning the electronic and magnetic properties of metallic transition metal dichalcogenides (mTMDCs) by 2D to 1D size confinement. The stability of the mTMDC monolayers and nanoribbons is demonstrated by the larger binding energy compared to the experimentally available semiconducting TMDCs. The 2D MX2 (M = Nb, Ta; X = S, Se) monolayers are
Yan Li +5 more
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Integrated Freestanding Two‐dimensional Transition Metal Dichalcogenides
Advanced Materials, 2017This paper reports on the integration of freestanding transition metal dichalcogenides (TMDs). Monolayer (1‐L) MoS2, WS2, and WSe2 as representative TMDs are transferred on ZnO nanorods (NRs), used here as nanostructured substrates. The photoluminescence (PL) spectra of 1‐L TMDs on NRs show a giant PL intensity enhancement, compared with those of 1‐L ...
Jeong, Hyun +8 more
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Magnetic doping in transition metal dichalcogenides
Journal of Physics: Condensed MatterAbstract Transition metal dichalcogenides (TMDCs) are materials with unique electronic properties due to their two-dimensional nature. Recently, there is a large and growing interest in synthesizing ferromagnetic TMDCs for applications in electronic devices and spintronics.
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Transition metal dichalcogenide nanophotonic metaplatforms
Metamaterials, Metadevices, and Metasystems 2021, 2021This Conference Presentation, “Transition metal dichalcogenide nanophotonic metaplatforms,” was recorded at SPIE Optics + Photonics 2021 held in San Diego, California, United States.
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Transition Metal Dichalcogenide Nanoantennas Lattice
MRS Advances, 2019High-index materials such as silicon and III-V compounds have recently gained a lot of interest as a promising material platform for efficient photonic nanostructures. Because of the high refractive index, nanoparticles of such materials support Mie resonances and enable efficient light control and its confinement at the nanoscale.
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