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Journal articles on the topic 'Graphene-Bilayer and trilayer'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Das, Dhiman Kumar, Sushant Kumar Sahoo, Pranati Purohit, and Sukadev Sahoo. "A study on the tensile force and shear strain of trilayer graphene." European Physical Journal Applied Physics 93, no. 3 (2021): 30404. http://dx.doi.org/10.1051/epjap/2021200357.

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The study of mechanical properties of graphene is one of the hottest topics in graphene physics. As the number of graphene layers increases, the mechanical property changes. Y. Liu et al., J. Mech. Phys. Solids, 60, 591 (2012) [1] have studied the tensile force and shear strain of bilayer graphene. They observed both the parameters increase as the length increases. In this paper, we study the same parameters for trilayer graphene. In trilayer graphene, we observe that with increasing length of the material, the tensile force increases and shear strain decreases. The change of mechanical behavi

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2

Ceferino, A., and F. Guinea. "Pseudomagnetic fields in fully relaxed twisted bilayer and trilayer graphene." 2D Materials 11, no. 3 (2024): 035015. http://dx.doi.org/10.1088/2053-1583/ad3b0e.

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Abstract We present simple models to describe the in-plane and the out-of-plane lattice relaxation in twisted bilayer and symmetrically twisted trilayer graphene. Analytical results and series expansions show that for twist angles θ > 1.4 ∘ , the in-plane atomic displacements lead to pseudomagnetic fields weakly dependent on θ. In symmetrically twisted trilayer graphene, the central layer in-plane relaxation is greatly enhanced. The joint effect of the relaxation-induced pseudoscalar potentials and the associated energy difference between interlayer dimer and non-dimer pairs resulted in a s

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3

Alisultanov, Z. Z. "Large and tunable thermoelectric effect in single layer graphene on bilayer graphene." Modern Physics Letters B 29, no. 03 (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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4

Iqbal, M. Z., M. F. Khan, M. W. Iqbal, and Jonghwa Eom. "Tuning the electrical properties of exfoliated graphene layers using deep ultraviolet irradiation." J. Mater. Chem. C 2, no. 27 (2014): 5404–10. http://dx.doi.org/10.1039/c4tc00522h.

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Deep ultraviolet irradiation tunes the electronic properties of mechanically exfoliated single-layer graphene, bilayer graphene, and trilayer graphene while maintaining their unique band structure and electrical properties.

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5

Do, Thi-Nga, Cheng-Peng Chang, Po-Hsin Shih, Jhao-Ying Wu, and Ming-Fa Lin. "Stacking-enriched magneto-transport properties of few-layer graphenes." Physical Chemistry Chemical Physics 19, no. 43 (2017): 29525–33. http://dx.doi.org/10.1039/c7cp05614a.

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6

Ke, Feng, Yabin Chen, Ketao Yin, et al. "Large bandgap of pressurized trilayer graphene." Proceedings of the National Academy of Sciences 116, no. 19 (2019): 9186–90. http://dx.doi.org/10.1073/pnas.1820890116.

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Graphene-based nanodevices have been developed rapidly and are now considered a strong contender for postsilicon electronics. However, one challenge facing graphene-based transistors is opening a sizable bandgap in graphene. The largest bandgap achieved so far is several hundred meV in bilayer graphene, but this value is still far below the threshold for practical applications. Through in situ electrical measurements, we observed a semiconducting character in compressed trilayer graphene by tuning the interlayer interaction with pressure. The optical absorption measurements demonstrate that an

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7

Yuan, Jianhui, and K. M. Liew. "Internal friction characteristic and analysis of in-plane natural frequency of trilayer complexes formed from graphenes and boron nitride nanosheets." RSC Adv. 4, no. 85 (2014): 45425–32. http://dx.doi.org/10.1039/c4ra08926j.

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The internal friction and in-plane natural frequency of a trilayer complex formed by a monolayer graphene sandwiched in the bilayer of boron nitride nanosheets (BN/G/BN) and graphenes (G/G/G) are studied by using molecular dynamics.

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8

Cobaleda, C., F. Rossella, S. Pezzini, et al. "Quantum Hall effect in bilayer and trilayer graphene." physica status solidi (c) 9, no. 6 (2012): 1411–14. http://dx.doi.org/10.1002/pssc.201100657.

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9

Chen, Xu-Dong, Wei Xin, Wen-Shuai Jiang, Zhi-Bo Liu, Yongsheng Chen, and Jian-Guo Tian. "High-Precision Twist-Controlled Bilayer and Trilayer Graphene." Advanced Materials 28, no. 13 (2016): 2563–70. http://dx.doi.org/10.1002/adma.201505129.

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10

SADEGHI, HATEF, M. T. AHMADI, S. M. MOUSAVI, RAZALI ISMAIL, and MAHDIAR H. GHADIRY. "CHANNEL CONDUCTANCE OF ABA STACKING TRILAYER GRAPHENE NANORIBBON FIELD-EFFECT TRANSISTOR." Modern Physics Letters B 26, no. 08 (2012): 1250047. http://dx.doi.org/10.1142/s0217984912500479.

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In this paper, our focus is on ABA trilayer graphene nanoribbon (TGN), in which the middle layer is horizontally shifted from the top and bottom layers. The conductance model of TGN as a FET channel is presented based on Landauer formula. Besides the good reported agreement with experimental study lending support to our model, the presented model demonstrates that minimum conductivity increases dramatically by temperature. It also draws parallels between TGN and bilayer graphene nanoribbon, in which similar thermal behavior is observed. Maxwell–Boltzmann approximation is employed to form the c

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11

Zhan, Da, Jia Xu Yan, Zhen Hua Ni, et al. "Bandgap-Opened Bilayer Graphene Approached by Asymmetrical Intercalation of Trilayer Graphene." Small 11, no. 9-10 (2014): 1177–82. http://dx.doi.org/10.1002/smll.201402728.

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12

de Oliveira, César R., and Vinícius L. Rocha. "Dirac cones for graph models of multilayer AA-stacked graphene sheets." Zeitschrift für Naturforschung A 76, no. 4 (2021): 371–84. http://dx.doi.org/10.1515/zna-2020-0330.

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Abstract We propose an extension, of a quantum graph model for a single sheet of graphene, to multilayer AA-stacked graphene and also to a model of the bulk graphite. Spectra and Dirac cones are explicitly characterized for bilayer and trilayer graphene, as well as for graphite. For weak layer interaction (as proposed in the text), simple perturbation arguments also cover any number of layers and it mathematically recovers basic cone existences from the theoretical and experimental physics literature; its main strength is its simplicity.

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13

Wang, Mei-Juan, Jun Wang, and Jun-Feng Liu. "Possible quantized charge pump in bilayer and trilayer graphene." New Journal of Physics 22, no. 1 (2020): 013042. http://dx.doi.org/10.1088/1367-2630/ab69b6.

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14

Cobaleda, C., E. Diez, M. Amado, et al. "Quantum Hall effect in monolayer, bilayer and trilayer graphene." Journal of Physics: Conference Series 456 (August 5, 2013): 012006. http://dx.doi.org/10.1088/1742-6596/456/1/012006.

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15

Ding, Kai-He, Zhen-Gang Zhu, and Jamal Berakdar. "Localized magnetic states in biased bilayer and trilayer graphene." Journal of Physics: Condensed Matter 21, no. 18 (2009): 182002. http://dx.doi.org/10.1088/0953-8984/21/18/182002.

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16

Politano, Grazia Giuseppina, and Carlo Versace. "Variable-Angle Spectroscopic Ellipsometry of Graphene-Based Films." Coatings 11, no. 4 (2021): 462. http://dx.doi.org/10.3390/coatings11040462.

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A review of the authors’ research works on Variable-Angle Spectroscopy (VASE) of graphene-based films is presented. The interaction of graphene oxide (GO) with magnetron-sputtered metals is a promising research area. VASE optical models of GO thin films deposited on magnetron-sputtered titanium (Ti), silver (Ag) and gold (Au) are discussed. Moreover, the optical properties of graphene nanoplatelet (GNPS) films and reduced graphene oxide (RGO) stabilized with Poly(Sodium 4-Styrenesulfonate) (PSS) films, which are less studied graphene-related materials, are shown. Finally, different optical beh

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17

Sadeghi, Hatef, Daniel T. H. Lai, Jean-Michel Redoute, and Aladin Zayegh. "Classic and Quantum Capacitances in Bernal Bilayer and Trilayer Graphene Field Effect Transistor." Journal of Nanomaterials 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/127690.

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Our focus in this study is on characterizing the capacitance voltage (C-V) behavior of Bernal stacking bilayer graphene (BG) and trilayer graphene (TG) as the channel of FET devices. The analytical models of quantum capacitance (QC) of BG and TG are presented. Although QC is smaller than the classic capacitance in conventional devices, its contribution to the total metal oxide semiconductor capacitor in graphene-based FET devices becomes significant in the nanoscale. Our calculation shows that QC increases with gate voltage in both BG and TG and decreases with temperature with some fluctuation

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18

Tomić Luketić, Kristina, Juraj Hanžek, Catalina G. Mihalcea, et al. "Charge State Effects in Swift-Heavy-Ion-Irradiated Nanomaterials." Crystals 12, no. 6 (2022): 865. http://dx.doi.org/10.3390/cryst12060865.

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The aim of this experimental work was to investigate the influence of the ion beam charge state on damage production in nanomaterials. To achieve this, we employed Raman spectroscopy, atomic force microscopy, and transmission electron microscopy to investigate nanomaterials irradiated by a 23 MeV I beam. We found a significant influence of the ion charge state on damage production in monolayer graphene, but found no evidence of this effect in bilayer and trilayer graphene, nor in graphite. Furthermore, we found no evidence of this effect in CaF2 and SiO2 nanocrystals irradiated with the same i

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19

Yelgel, Celal, and Gyaneshwar P. Srivastava. "Atomic and Electronic Structure of Multilayer Graphene on a Monolayer Hexagonal Boron Nitride." MRS Proceedings 1549 (2013): 65–70. http://dx.doi.org/10.1557/opl.2013.710.

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ABSTRACTThe atomic and electronic structures of multilayer graphene on a monolayer boron nitride (MLBN) have been investigated by using the pseudopotential method and the local density approximation (LDA) of the density functional theory (DFT). We show that the LDA energy band gap can be tuned in the range 41-278 meV for a multilayer graphene by using MLBN as a substrate. The dispersion of the π/π* bands slightly away from the K point is linear with the electron speed of 0.9×106 and 0.93×106 for graphene (MLG)/MLBN and ABA trilayer graphene (TLG)/MLBN systems, respectively. This behaviour beco

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20

Iveković, Damjan, Sunil Kumar, Andrea Gajović, Tihana Čižmar, and Marko Karlušić. "Response of Bilayer and Trilayer Graphene to High-Energy Heavy Ion Irradiation." Materials 16, no. 4 (2023): 1332. http://dx.doi.org/10.3390/ma16041332.

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High-energy heavy ion irradiation is a very useful tool for the nanostructuring of 2D materials because defects can be introduced in a controlled way. This approach is especially attractive for the mass production of graphene nanomembranes when nanopore size and density can easily be tuned by ion irradiation parameters such as ion energy and applied fluence. Therefore, understanding the basic mechanisms in nanopore formation due to high-energy heavy ion impact is of the highest importance. In the present work, we used Raman spectroscopy to investigate the response of bilayer and trilayer graph

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21

Zhang, Yanna, Xiao-Li Lu, Yongjin Jiang, Botao Teng, and Jun-Qiang Lu. "Structural and Magnetic Instability of Bilayer and Trilayer Zigzag Graphene Nanoribbons." Journal of Computational and Theoretical Nanoscience 8, no. 12 (2011): 2448–53. http://dx.doi.org/10.1166/jctn.2011.1977.

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22

Kazemi, Asieh S., Simon Crampin, and Adelina Ilie. "Stacking-dependent superstructures at stepped armchair interfaces of bilayer/trilayer graphene." Applied Physics Letters 102, no. 16 (2013): 163111. http://dx.doi.org/10.1063/1.4802796.

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23

Xu, Dongwei, Haiwen Liu, Vincent Sacksteder IV, et al. "A disorder induced field effect transistor in bilayer and trilayer graphene." Journal of Physics: Condensed Matter 25, no. 10 (2013): 105303. http://dx.doi.org/10.1088/0953-8984/25/10/105303.

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24

Myers, Nathan M., Francisco J. Peña, Natalia Cortés, and Patricio Vargas. "Multilayer Graphene as an Endoreversible Otto Engine." Nanomaterials 13, no. 9 (2023): 1548. http://dx.doi.org/10.3390/nano13091548.

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We examine the performance of a finite-time, endoreversible Otto heat engine with a working medium of monolayer or multilayered graphene subjected to an external magnetic field. As the energy spectrum of multilayer graphene under an external magnetic field depends strongly on the number of layers, so too does its thermodynamic behavior. We show that this leads to a simple relationship between the engine efficiency and the number of layers of graphene in the working medium. Furthermore, we find that the efficiency at maximum power for bilayer and trilayer working mediums can exceed that of a cl

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25

Babar, Mohammad, Ziyan Zhu, Rachel Kurchin, and Venkat Viswanathan. "Enhanced Electrochemical Activity Volcanoes in Flat-Band Twisted Trilayer Graphene." ECS Meeting Abstracts MA2023-02, no. 60 (2023): 2913. http://dx.doi.org/10.1149/ma2023-02602913mtgabs.

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Electrochemical reactions at electrode-electrolyte interfaces are often controlled by modifying the substrate and thereby tuning the adsorption energy to reach peaks of activity volcanoes. In this work, we attempt to enhance interfacial charge transfer kinetics through modifying the electronic density of states of an electrode which offers highly tunable flat bands such as the twisted graphene system, allowing greater overlap with the redox couple states. Correspondingly, we develop a twist-dependent electrochemical activity map, combining a tight-binding electronic structure model with modifi

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26

Kitajima, Masahiro, Ikufumi Katayama, Ørjan Sele Handegård, et al. "Fano resonance of optical phonons in a multilayer graphene stack." Japanese Journal of Applied Physics 60, no. 12 (2021): 122006. http://dx.doi.org/10.35848/1347-4065/ac2c29.

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Abstract We studied Fano interference between the Raman spectrum of G-band phonons and electron continuum in a multilayer graphene stack. The thickness and power dependencies of the Fano interference coefficient ∣1/q∣ in the G-mode, where q is the Fano asymmetry parameter, were spatially visualized and analyzed using the Gaussian-convoluted Breit–Wigner–Fano function. The estimated ∣1/q∣ decreases with an increase in the layer number and laser power in the low-power region at least for monolayer, bilayer, and trilayer graphene. In the higher-power region, ∣1/q∣ increases with power only for mo

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27

Ezawa, Motohiko. "Supersymmetry and unconventional quantum Hall effect in monolayer, bilayer and trilayer graphene." Physica E: Low-dimensional Systems and Nanostructures 40, no. 2 (2007): 269–72. http://dx.doi.org/10.1016/j.physe.2007.06.038.

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28

Elder, Robert M., Mahesh R. Neupane, and Tanya L. Chantawansri. "Stacking order dependent mechanical properties of graphene/MoS2 bilayer and trilayer heterostructures." Applied Physics Letters 107, no. 7 (2015): 073101. http://dx.doi.org/10.1063/1.4928752.

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29

Seo, Yuta, Satoru Masubuchi, Momoko Onodera, et al. "Subband-resolved momentum-conserved resonant tunneling in monolayer graphene/h-BN/ABA-trilayer graphene small-twist-angle tunneling device." Applied Physics Letters 120, no. 8 (2022): 083102. http://dx.doi.org/10.1063/5.0080215.

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We demonstrate twist-controlled resonant tunneling in a monolayer graphene (MLG)/hexagonal boron nitride ( h-BN)/ABA-stacked trilayer graphene (TLG) van der Waals (vdW) junction, in which MLG and TLG flakes are aligned with a small twist angle θ of ∼1.05° between their crystallographic orientations through a thin h-BN barrier. Owing to the small interlayer twist, resonant tunneling attributed to the conservation of momentum and energy was observed between the single linear band of MLG and multiple subbands of TLG. We show that different subbands of TLG—bilayer-graphene-like subbands and a MLG-

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30

Umar, Mustapha, Chidera C. Nnadiekwe, Muhammad Haroon, et al. "A First-Principles Study on the Multilayer Graphene Nanosheets Anode Performance for Boron-Ion Battery." Nanomaterials 12, no. 8 (2022): 1280. http://dx.doi.org/10.3390/nano12081280.

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Advanced battery materials are urgently desirable to meet the rapidly growing demand for portable electronics and power. The development of a high-energy-density anode is essential for the practical application of B3+ batteries as an alternative to Li-ion batteries. Herein, we have investigated the performance of B3+ on monolayer (MG), bilayer (BG), trilayer (TG), and tetralayer (TTG) graphene sheets using first-principles calculations. The findings reveal significant stabilization of the HOMO and the LUMO frontier orbitals of the graphene sheets upon adsorption of B3+ by shifting the energies

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31

Politano, Grazia Giuseppina, Carlo Vena, Giovanni Desiderio, and Carlo Versace. "Variable angle spectroscopic ellipsometry characterization of turbostratic CVD-grown bilayer and trilayer graphene." Optical Materials 107 (September 2020): 110165. http://dx.doi.org/10.1016/j.optmat.2020.110165.

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32

Li, Longjiang. "A comprehensive review of superconductivity in heterostructures and superlattices comprising 2D materials." Applied and Computational Engineering 60, no. 1 (2024): 211–22. http://dx.doi.org/10.54254/2755-2721/60/20240884.

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2D materials are materials that only exist in two dimensions, which means that their thickness is only one atom or several atoms. Since the first kind of 2D material was found, which is graphene, much research, not only including the findings of the new kind of 2D materials such as hBN but also including many complicated heterostructures formed by these 2D materials and many amazing properties caused by them, are done recently. This paper will begin with a review of the widely applied ways to produce graphene and the special properties and applications of graphene. Furthermore, the Moire/Super

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33

Wang, Jin, Yang, Zong, and Peng. "Graphene Adhesion Mechanics on Iron Substrates: Insight from Molecular Dynamic Simulations." Crystals 9, no. 11 (2019): 579. http://dx.doi.org/10.3390/cryst9110579.

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The adhesion feature of graphene on metal substrates is important in graphene synthesis, transfer and applications, as well as for graphene-reinforced metal matrix composites. We investigate the adhesion energy of graphene nanosheets (GNs) on iron substrate using molecular dynamic (MD) simulations. Two Fe–C potentials are examined as Lennard–Jones (LJ) pair potential and embedded-atom method (EAM) potential. For LJ potential, the adhesion energies of monolayer GN are 0.47, 0.62, 0.70 and 0.74 J/m2 on the iron {110}, {111}, {112} and {100} surfaces, respectively, compared to the values of 26.83

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34

Dong, H. M., L. S. Huang, J. L. Liu, F. Huang, and C. X. Zhao. "Layer-dependent optoelectronic properties of black phosphorus." International Journal of Modern Physics C 31, no. 12 (2020): 2050177. http://dx.doi.org/10.1142/s0129183120501776.

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The layer-dependent optoelectronic properties of monolayer, bilayer and trilayer black phosphorus (BP) are studied by using the first-principles calculations based on density functional theory (DFT). The valence band splits and the density of states (DOS) in the conduction band obviously shift to the Fermi surface with the increased layer number. The atomic p orbital of BP plays an decisive role in determining the electronic and optical properties, which are drastically different from those of graphene and transition metal dichalogenides (TMDs). The increase of the layer number leads to the me

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35

Huang, Ming, Pavel V. Bakharev, Zhu-Jun Wang, et al. "Large-area single-crystal AB-bilayer and ABA-trilayer graphene grown on a Cu/Ni(111) foil." Nature Nanotechnology 15, no. 4 (2020): 289–95. http://dx.doi.org/10.1038/s41565-019-0622-8.

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36

Shtepliuk, Ivan, and Rositsa Yakimova. "Interband Absorption in Few-Layer Graphene Quantum Dots: Effect of Heavy Metals." Materials 11, no. 7 (2018): 1217. http://dx.doi.org/10.3390/ma11071217.

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Monolayer, bilayer, and trilayer graphene quantum dots (GQDs) with different binding abilities to elemental heavy metals (HMs: Cd, Hg, and Pb) were designed, and their electronic and optical properties were investigated theoretically to understand deeply the optical response under heavy metal exposure. To gain insight into the nature of interband absorption, we performed density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations for thickness-varying GQDs. We found that the interband absorption in GQDs can be efficiently tuned by controlling the thicknes

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37

Bediako, Daniel Kwabena. "(Invited) Manipulating Interfacial Electrochemistry with Moiré Superlattices." ECS Meeting Abstracts MA2024-01, no. 35 (2024): 1983. http://dx.doi.org/10.1149/ma2024-01351983mtgabs.

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At electrode–electrolyte interfaces, crystallographic defects are frequently implicated as active sites that mediate interfacial electron transfer (ET) by introducing high densities of localized electronic states (DOS). However, conventional defects are challenging to deterministically synthesize and control at an atomic level, hindering the direct study of how electronic localization impacts interfacial reactivity. Azimuthal misalignment of atomically thin layers produces moiré superlattices and alters the electronic band structure, in a manner that is systematically dependent on the interlay

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38

McQuade, Gregor A., Annette S. Plaut, Alan Usher, and Jens Martin. "The thermal expansion coefficient of monolayer, bilayer, and trilayer graphene derived from the strain induced by cooling to cryogenic temperatures." Applied Physics Letters 118, no. 20 (2021): 203101. http://dx.doi.org/10.1063/5.0035391.

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39

Guerrero-Avilés, Raúl, Marta Pelc, Fabian Rudolf Geisenhof, Ralf Thomas Weitz, and Andrés Ayuela. "Rhombohedral trilayer graphene being more stable than its Bernal counterpart." Nanoscale, 2022. http://dx.doi.org/10.1039/d2nr01985j.

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40

Schwab, Julian, Florian Mangold, Bettina Frank, Timothy J. Davis, and Harald Giessen. "Skyrmion bag robustness in plasmonic bilayer and trilayer moiré superlattices." Nanophotonics, March 10, 2025. https://doi.org/10.1515/nanoph-2024-0581.

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Abstract Twistronics is studied intensively in twisted 2D heterostructures and its extension to trilayer moiré structures has proven beneficial for the tunability of unconventional correlated states and superconductivity in twisted trilayer graphene. Just recently, the concept of twistronics has been applied to plasmonic lattices with nontrivial topology, demonstrating that bilayer moiré skyrmion lattices harbor multi-skyrmion textures called skyrmion bags. Here, we explore the properties of plasmonic trilayer moiré superlattices that are created by the interference of three twisted skyrmion l

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41

Yuan, Shengjun, Hans De Raedt, and Mikhail I. Katsnelson. "Electronic transport in disordered bilayer and trilayer graphene." Physical Review B 82, no. 23 (2010). http://dx.doi.org/10.1103/physrevb.82.235409.

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42

Wang, Ziwei, Yves H. Kwan, Glenn Wagner, Nick Bultinck, Steven H. Simon, and S. A. Parameswaran. "Kekulé spirals and charge transfer cascades in twisted symmetric trilayer graphene." Physical Review B 109, no. 20 (2024). http://dx.doi.org/10.1103/physrevb.109.l201119.

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We study the phase diagram of magic-angle twisted symmetric trilayer graphene in the presence of uniaxial heterostrain and interlayer displacement field. For experimentally reasonable strain, our mean-field analysis finds robust Kekulé spiral order whose doping-dependent ordering vector is incommensurate with the moiré superlattice, consistent with recent scanning tunneling microscopy experiments, and paralleling the behavior of closely related twisted bilayer graphene (TBG) systems. Strikingly, we identify a possibility absent in TBG: the existence of Kekulé spiral order even at zero strain f

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43

Politano, Grazia Giuseppina, and Carlo Versace. "Variable-Angle Spectroscopic Ellipsometry of Graphene-Based Films." April 16, 2021. https://doi.org/10.3390/coatings11040462.

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A review of the authors' research works on Variable-Angle Spectroscopy (VASE) of graphene-based films is presented. The interaction of graphene oxide (GO) with magnetron-sputtered metals is a promising research area. VASE optical models of GO thin films deposited on magnetron-sputtered titanium (Ti), silver (Ag) and gold (Au) are discussed. Moreover, the optical properties of graphene nanoplatelet (GNPS) films and reduced graphene oxide (RGO) stabilized with Poly(Sodium 4-Styrenesulfonate) (PSS) films, which are less studied graphene-related materials, are shown. Finally, different optical beh

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44

Zhen Zhan, Yalei Zhang, and Shengjun Yuan. "Lattice relaxation and substrate effects on the electronic properties of graphene superlattice." Acta Physica Sinica, 2022, 0. http://dx.doi.org/10.7498/aps.71.20220872.

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When two two-dimensional (2D) materials with different lattice constants or with different rotation angles are stacked on top of another, a moiré superlattice can be constructed. The electronic properties of the superlattice are strongly dependent on the stacking configurations, twist angles and substrates. For instance, theoretically, when the rotation angle of twisted bilayer graphene is reduced to a set of specific values, the so-called magic angles, flat bands appear near the charge neutrality, and the electron-electron interaction is significantly enhanced. The Mott insulator and unconven

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45

Chichinadze, Dmitry V., Laura Classen, Yuxuan Wang, and Andrey V. Chubukov. "Cascade of transitions in twisted and non-twisted graphene layers within the van Hove scenario." npj Quantum Materials 7, no. 1 (2022). http://dx.doi.org/10.1038/s41535-022-00520-z.

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AbstractMotivated by measurements of compressibility and STM spectra in twisted bilayer graphene, we analyze the pattern of symmetry breaking for itinerant fermions near a van Hove singularity. Making use of an approximate SU(4) symmetry of the Landau functional, we show that the structure of the spin/isospin order parameter changes with increasing filling via a cascade of transitions. We compute the feedback from different spin/isospin orders on fermions and argue that each order splits the initially 4-fold degenerate van Hove peak in a particular fashion, consistent with the STM data and com

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Perrin, Mickael L., Anooja Jayaraj, Bhaskar Ghawri, et al. "Electric field tunable bandgap in twisted double trilayer graphene." npj 2D Materials and Applications 8, no. 1 (2024). http://dx.doi.org/10.1038/s41699-024-00449-w.

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AbstractTwisted van der Waals heterostructures have recently emerged as a versatile platform for engineering interaction-driven, topological phenomena with a high degree of control and tunability. Since the initial discovery of correlated phases in twisted bilayer graphene, a wide range of moiré materials have emerged with fascinating electronic properties. While the field of twistronics has rapidly evolved and now includes a range of multi-layered systems, moiré systems comprised of double trilayer graphene remain elusive. Here, we report electrical transport measurements combined with tight-

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Ding, Dongdong, Ruirui Niu, Xiangyan Han, et al. "Tunable correlation in twisted monolayer-trilayer graphene." Chinese Physics B, March 30, 2023. http://dx.doi.org/10.1088/1674-1056/acc8c3.

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Abstract Flat-band physics of Moiré superlattices, originally discovered in the celebrated twisted bilayer graphene, have recently been intensively explored in multilayer graphene systems that can be further controlled by electric field. In this work, we experimentally find the evidence of correlated insulators at half filling of the electron moiré band of twisted monolayer-trilayer graphene with a twist angle around 1.2 degrees. Van Hove singularity (VHS), manifested as enhanced resistance and zero Hall voltage, is observed to be distinct in conduction and valence flat bands. It also depends

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Zhu, yujian, Yiwei Chen, Qingxin Li, et al. "Tunable multi-bands in twisted double bilayer graphene." 2D Materials, April 24, 2022. http://dx.doi.org/10.1088/2053-1583/ac69bb.

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Abstract The bandstructure of a material, playing an important role in its electron transport property, is usually governed by the lattice configuration. Materials with a field-effect tunable band, such as bilayer and rhombohedral trilayer graphene, are more flexible for electronic applications. Here, on dual-gated twisted double bilayer graphene (TDBG) samples with small twist angle around 1°, we observe vertical electric-field-tunable bandstructures at multiple moiré fillings positions with bandgap values continuously varying from zero to tens of mili-electron volts. Moreover, within the fir

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Zhou, Zhang, Kenji Watanabe, Takashi Taniguchi, Xiao Lin, Jinhai Mao, and Hong-Jun Gao. "Emergence of correlations in twisted monolayer-trilayer graphene heterostructures." Chinese Physics B, July 3, 2023. http://dx.doi.org/10.1088/1674-1056/ace3a8.

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Abstract Twisted bilayer graphene heterostructures have recently emerged as a well-established platform for studying strongly correlated phases, such as correlated insulating, superconducting, and topologic states. Extending this notion to twisted multilayer graphene heterostructures has exhibited more diverse fruitful correlated phases, as some fundamental properties related to symmetry and band structures are correspondingly modified. Here we report the observations of correlated states in twisted monolayer-trilayer (Bernal stacked) graphene heterostructures. Correlated phases at integer fil

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Zheng, Jiaxin, Yangyang Wang, Lu Wang, et al. "Interfacial Properties of Bilayer and Trilayer Graphene on Metal Substrates." Scientific Reports 3, no. 1 (2013). http://dx.doi.org/10.1038/srep02081.

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