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相关论文: Commensurate-incommensurate transition for graphen…

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Solids at incommensurate contact display low-friction, 'superlubric', sliding. For graphene flakes on a graphite surface, superlubric sliding is only temporary due to rotation of the flakes from incommensurate to commensurate contact with…

介观与纳米尺度物理 · 物理学 2013-05-22 A. S. de Wijn , A. Fasolino , A. E. Filippov , M. Urbakh

In this work we probe the third-order non-linear optical property of graphene, hexagonal boron nitride and their heterostructure by the use of coherent anti-Stokes Raman Spectroscopy. When the energy difference of the two input fields match…

We study a sub monolayer He-4 adsorbed on fluorographene (GF) and on hexagonal boron nitride (hBN) at low coverage. The adsorption potentials have been computed ab-initio with a suitable density functional theory including dispersion…

其他凝聚态物理 · 物理学 2021-06-09 Saverio Moroni , Francesco Ancilotto , Pier Luigi Silvestrelli , Luciano Reatto

We theoretically investigate the electronic structures of moir\'{e} superlattices arising in monolayer / bilayer graphene stacked on hexagonal boron nitride (hBN) in presence and absence of magnetic field. We develop an effective continuum…

介观与纳米尺度物理 · 物理学 2014-10-10 Pilkyung Moon , Mikito Koshino

Graphene/hexagonal boron nitride (hBN) heterostructures represent a promising class of metal-insulator-semiconductor systems widely explored for multifunctional digital device applications. In this work, we demonstrate that graphene, when…

介观与纳米尺度物理 · 物理学 2025-05-28 A. Belayadi , C. I. Osuala , I. Assi , A. Naif , J. P. F. LeBlanc , A. Abbout

Nonlinear Hall-like currents can be generated by a time-periodic alternating bias on two-dimensional (2D) materials lacking inversion symmetry. To hint that the moir\'e between graphene and its supporting substrate contributes to the…

介观与纳米尺度物理 · 物理学 2025-01-10 Angiolo Huaman , Salvador Barraza-Lopez

Hexagonal boron-nitride (h-BN) provides an ideal substrate for supporting graphene devices to achieve fascinating transport properties, such as Klein tunneling, electron optics and other novel quantum transport phenomena. However,…

介观与纳米尺度物理 · 物理学 2024-02-13 Viet-Anh Tran , Viet-Hung Nguyen , Jean-Christophe Charlier

Interfacial interactions in two parallel-stacked hexagonal boron-nitride (hBN) layers facilitate sliding ferroelectricity, enabling novel device functionalities. Additionally, when Bernal or twisted bilayer graphene is aligned with an hBN…

介观与纳米尺度物理 · 物理学 2026-04-23 Tianyu Zhang , Yueyang Wang , Hongxia Xue , Kenji Watanabe , Takashi Taniguchi , Dong-Keun Ki

In this letter, we examine the role of Coulomb interactions in the emergence of macroscopically ordered states in graphene supported on hexagonal boron nitride substrates. Due to incommensuration effects with the substrate, graphene can…

强关联电子 · 物理学 2015-03-26 Bruno Uchoa , Valeri N. Kotov , M. Kindermann

Boron nitride (BN) is a material with outstanding technological promise because of its exceptional thermochemical stability, structural, electronic and thermal conductivity properties, and extreme hardness. Yet, the relative thermodynamic…

材料科学 · 物理学 2018-12-13 Claudio Cazorla , Tim Gould

The paper continues a series of papers devoted to treatment of the crystalline state on the basis of the approach in equilibrium statistical mechanics proposed earlier by the author. This paper is concerned with elaboration of a…

统计力学 · 物理学 2013-02-08 V. A. Golovko

The scaling of friction with the contact size $A$ and (in)commensurabilty of nanoscopic and mesoscopic crystals on a regular substrate are investigated analytically for triangular nanocrystals on hexagonal substrates. The crystals are…

介观与纳米尺度物理 · 物理学 2012-09-10 Astrid S. de Wijn

Using Monte Carlo simulation method in the canonical ensemble, we have studied the commensurate-incommensurate transition in two-dimensional finite mixed clusters of Ar and Kr adsorbed on graphite basal plane at low temperatures. It has…

介观与纳米尺度物理 · 物理学 2015-01-13 A. Patrykiejew , S. Sokołowski

We report the results of molecular dynamics (MD) simulations of a complete monolayer of hexane physisorbed onto the basal plane of graphite. At low temperatures the system forms a herringbone solid. With increasing temperature, a solid to…

软凝聚态物质 · 物理学 2009-11-10 M. W. Roth , C. L. Pint , Carlos Wexler

Neuromorphic computing has emphasized the need for memristors with non-volatile, multiple conductance levels. This paper demonstrates the potential of hexagonal boron nitride (hBN)/graphene heterostructures to act as memristors with…

介观与纳米尺度物理 · 物理学 2024-07-19 Harsimran Kaur Mann , Mainak Mondal , Vivek Sah , Kenji Watanabe , Takashi Taniguchi , Akshay Singh , Aveek Bid

The contact strength, adhesion and friction, between graphene and an incommensurate crystalline substrate such as {\it h}-BN depends on their relative alignment angle $\theta$. The well established Novaco-McTague (NM) theory predicts for a…

材料科学 · 物理学 2017-05-29 Roberto Guerra , Merel van Wijk , Andrea Vanossi , Annalisa Fasolino , Erio Tosatti

This work presents an ab-initio study of a few-layers hexagonal boron nitride (hBN) and hBN-graphene heterostructure sandwiched between Ni(111) layers. The aim of this study is to understand the electron transmission process through the…

We investigate theoretically the existence at low temperature of a commensurate (4/7) crystalline phase of a layer of either He isotope on top of a He-4 layer adsorbed on graphite. We make use of a recently developed, systematically…

其他凝聚态物理 · 物理学 2019-05-27 Saverio Moroni , Massimo Boninsegni

General conditions controlling formation of incommensurate phases (IPs) in crystals undergoing reconstructive phase transitions (RPTs) are analyzed in the framework of a model free phenomenological approach. A universal trend to stabilizing…

材料科学 · 物理学 2015-10-08 A. Korzhenevskii , V. Dmitriev

When two-dimensional atomic crystals are brought into close proximity to form a van der Waals heterostructure, neighbouring crystals can start influencing each others electronic properties. Of particular interest is the situation when the…