Bibliografías temáticas / Twisted Bilayer Graphene, Thermoelectric Effect

Literatura académica sobre el tema "Twisted Bilayer Graphene, Thermoelectric Effect"

Autor: Grafiati
Publicado: 6 de septiembre de 2023

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Artículos de revistas sobre el tema "Twisted Bilayer Graphene, Thermoelectric Effect"

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Deng, Shuo, Xiang Cai, Yan Zhang y Lijie Li. "Enhanced thermoelectric performance of twisted bilayer graphene nanoribbons junction". Carbon 145 (abril de 2019): 622–28. http://dx.doi.org/10.1016/j.carbon.2019.01.089.

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Saito, Yu, Fangyuan Yang, Jingyuan Ge, Xiaoxue Liu, Takashi Taniguchi, Kenji Watanabe, J. I. A. Li, Erez Berg y Andrea F. Young. "Isospin Pomeranchuk effect in twisted bilayer graphene". Nature 592, n.º 7853 (7 de abril de 2021): 220–24. http://dx.doi.org/10.1038/s41586-021-03409-2.

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Chen, Zefeng, Hongwei Yang, Yihong Xiao, Jintao Pan, Yu Xia y Wenguo Zhu. "Photonic spin Hall effect in twisted bilayer graphene". Journal of the Optical Society of America A 38, n.º 8 (28 de julio de 2021): 1232. http://dx.doi.org/10.1364/josaa.430598.

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Finocchiaro, F., F. Guinea y P. San-Jose. "Quantum spin Hall effect in twisted bilayer graphene". 2D Materials 4, n.º 2 (2 de febrero de 2017): 025027. http://dx.doi.org/10.1088/2053-1583/aa5265.

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Moutinho, Marcus V. O., Pedro Venezuela y Marcos A. Pimenta. "Raman Spectroscopy of Twisted Bilayer Graphene". C 7, n.º 1 (26 de enero de 2021): 10. http://dx.doi.org/10.3390/c7010010.

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When two periodic two-dimensional structures are superposed, any mismatch rotation angle between the layers generates a Moiré pattern superlattice, whose size depends on the twisting angle θ. If the layers are composed by different materials, this effect is also dependent on the lattice parameters of each layer. Moiré superlattices are commonly observed in bilayer graphene, where the mismatch angle between layers can be produced by growing twisted bilayer graphene (TBG) samples by CVD or folding the monolayer back upon itself. In TBG, it was shown that the coupling between the Dirac cones of the two layers gives rise to van Hove singularities (vHs) in the density of electronic states, whose energies vary with θ. The understanding of the behavior of electrons and their interactions with phonons in atomically thin heterostructures is crucial for the engineering of novel 2D devices. Raman spectroscopy has been often used to characterize twisted bilayer graphene and graphene heterostructures. Here, we review the main important effects in the Raman spectra of TBG discussing firstly the appearance of new peaks in the spectra associated with phonons with wavevectors within the interior of the Brillouin zone of graphene corresponding to the reciprocal unit vectors of the Moiré superlattice, and that are folded to the center of the reduced Brillouin Zone (BZ) becoming Raman active. Another important effect is the giant enhancement of G band intensity of TBG that occurs only in a narrow range of laser excitation energies and for a given twisting angle. Results show that the vHs in the density of states is not only related to the folding of the commensurate BZ, but mainly associated with the Moiré pattern that does not necessarily have a translational symmetry. Finally, we show that there are two different resonance mechanisms that activate the appearance of the extra peaks: the intralayer and interlayer electron–phonon processes, involving electrons of the same layer or from different layers, respectively. Both effects are observed for twisted bilayer graphene, but Raman spectroscopy can also be used to probe the intralayer process in any kind of graphene-based heterostructure, like in the graphene/h-BN junctions.
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Kommini, Adithya y Zlatan Aksamija. "Very high thermoelectric power factor near magic angle in twisted bilayer graphene". 2D Materials 8, n.º 4 (20 de agosto de 2021): 045022. http://dx.doi.org/10.1088/2053-1583/ac161d.

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Alisultanov, Z. Z. "Large and tunable thermoelectric effect in single layer graphene on bilayer graphene". Modern Physics Letters B 29, n.º 03 (30 de enero de 2015): 1550003. http://dx.doi.org/10.1142/s0217984915500037.

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The conductivity and thermopower of a trilayer graphene based system have been studied within the framework of a simple model. It has been shown that kinks of the conductivity and peaks of the thermopower of the monolayer graphene formed on a tunable bilayer graphene appear near the edges of the band gap of the tunable bilayer graphene.
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8

Li, Zedong y Z. F. Wang. "Quantum anomalous Hall effect in twisted bilayer graphene quasicrystal". Chinese Physics B 29, n.º 10 (octubre de 2020): 107101. http://dx.doi.org/10.1088/1674-1056/abab77.

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Liu, Wenxiang, Yongqiang Wu, Yang Hong, Bo Hou, Jingchao Zhang y Yanan Yue. "Full-spectrum thermal analysis in twisted bilayer graphene". Physical Chemistry Chemical Physics 23, n.º 35 (2021): 19166–72. http://dx.doi.org/10.1039/d1cp01715b.

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Mreńca-Kolasińska, Alina, Peter Rickhaus, Giulia Zheng, Klaus Richter, Thomas Ihn, Klaus Ensslin y Ming-Hao Liu. "Quantum capacitive coupling between large-angle twisted graphene layers". 2D Materials 9, n.º 2 (25 de febrero de 2022): 025013. http://dx.doi.org/10.1088/2053-1583/ac5536.

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Abstract Large-angle twisted bilayer graphene (tBLG) is known to be electronically decoupled due to the spatial separation of the Dirac cones corresponding to individual graphene layers in the reciprocal space. The close spacing between the layers causes strong capacitive coupling, opening possibilities for applications in atomically thin devices. Here, we present a self-consistent quantum capacitance model for the electrostatics of decoupled graphene layers, and further generalize it to deal with decoupled tBLG at finite magnetic field and large-angle twisted double bilayer graphene at zero magnetic field. We probe the capacitive coupling through the conductance, showing good agreement between simulations and experiments for all the systems considered. We also propose a new experiment utilizing the decoupling effect to induce a huge and tunable bandgap in bilayer graphene by applying a moderately low bias. Our model can be extended to systems composed of decoupled graphene multilayers as well as non-graphene systems, opening a new realm of quantum-capacitively coupled materials.
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Actas de conferencias sobre el tema "Twisted Bilayer Graphene, Thermoelectric Effect"

1

Chinnappagoudra, R. F., M. D. Kamatagi y N. R. Patil. "Thermoelectric properties of bilayer graphene: Effect of screening". En NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0061104.

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