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The importance of many-body dispersion effects in layered materials subjected to high external loads is evaluated. State-of-the-art many-body dispersion density functional theory calculations performed for graphite, hexagonal boron nitride,…

We demonstrate that freeing a single-atom thick layer of hexagonal boron nitride (hbn) from tight chemical bonding to a Ni(111) thin film grown on a W(110) substrate can be achieved by intercalation of Au atoms into the interface. This…

Hexagonal boron nitride (h-BN) encapsulation significantly improves carrier transport in graphene. This work investigates the benefit of implementing the encapsulation technique in graphene field-effect transistors (GFET) in terms of their…

Mesoscale and Nanoscale Physics · Physics 2019-03-28 Pedro C. Feijoo , Francisco Pasadas , José M. Iglesias , El Mokhtar Hamham , Raúl Rengel , David Jiménez

Hexagonal boron nitride ($\it h$-BN) exhibits dominant $\pi$-bands near the Fermi level, similar to graphene. However, unlike graphene, where tight-binding (TB) models accurately reproduce band edges near the $K$ and $K^{\prime}$ points in…

Materials Science · Physics 2024-09-04 Srivani Javvaji , Fengping Li , Jeil Jung

We combine electron energy-loss spectroscopy and first-principles calculations based on density-functional theory (DFT) to identify the lowest indirect exciton state in the in-plane charge response of hexagonal boron nitride (h-BN) single…

Mesoscale and Nanoscale Physics · Physics 2018-01-10 R. Schuster , C. Habenicht , M. Ahmad , M. Knupfer , B. Büchner

Two dimensional materials are an emerging class of materials which is transforming the present day research activity on a phenomenal scale. Hexagonal boron nitride is a wide band gap 2D material which is an excellent substrate for graphene…

Materials Science · Physics 2020-02-18 Nilanjan Basu , Alapan Dutta , Ranveer Singh , Tapobrata Som , Jayeeta Lahiri

Topological physics has evolved from its initial focus on fermionic systems to the exploration of bosonic systems, particularly phononic excitations in crystalline materials. Two-dimensional (2D) topological phonons emerge as promising…

Materials Science · Physics 2025-02-27 Zhiyu Tao , Yani Wang , Shuyi He , Jiade Li , Siwei Xue , Zhibin Su , Jiatao Sun , Hailin Peng , Jiandong Guo , Xuetao Zhu

Recent advancements in thermal conductivity modulating strategies have shown promising enhancements to the thermal management capabilities of two-dimensional materials. In this article, both iterative Boltzmann transport equation solution…

Materials Science · Physics 2025-03-21 Dongkai Pan , Xiao Wan , Tianhao Li , Zhicheng Zong , Yangjun Qin , Nuo Yang

Graphene is one of the most researched two dimensional (2D) material due to its unique combination of mechanical, thermal and electrical properties. Special 2D structure of graphene enables it to exhibit a wide range of peculiar material…

Computational Physics · Physics 2023-06-13 Akash Singh , Yumeng Li

Hexagonal boron nitride (hBN) and graphene are similar in many ways - they are isoelectronic, have the same structure, are chemically inert and show persistence. All of these properties are indicators of a deeper connection that has, thus…

Materials Science · Physics 2026-03-02 Suryakanti Debata , Sai Krishna Narayanan , Pratibha Dev

The thermoelectric properties of hybrid graphene-boron nitride nanoribbons (BCNNRs) are investigated using the non-equilibrium Green's function (NEGF) approach. We find that the thermoelectric figure of merit (ZT) can be remarkably enhanced…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Kaike Yang , Yuanping Chen , Roberto D'Agosta , Yuee Xie , Jianxin Zhong , Angel Rubio

Phonon polaritons are quasiparticles resulting from strong coupling of photons with optical phonons. Excitation and control of these quasiparticles in 2D materials offer the opportunity to confine and transport light at the nanoscale. Here,…

Mesoscale and Nanoscale Physics · Physics 2015-01-13 Zhiwen Shi , Hans A. Bechte , Samuel Berweger , Yinghui Sun , Bo Zeng , Chenhao Jin , Henry Chang , Michael C. Martin , Markus B. Raschke , Feng Wang

This study introduces an anisotropic interfacial potential that provides an accurate description of the van der Waals (vdW) interactions between water and hexagonal boron nitride (h-BN) at their interface. Benchmarked against the strongly…

Chemical Physics · Physics 2023-06-14 Zhicheng Feng , Zhangke Lei , Yuanpeng Yao , Jianxin Liu , Bozhao Wu , Wengen Ouyang

Machine Learning (ML) potentials such as Gaussian Approximation Potential (GAP) have demonstrated impressive capabilities in mapping structure to properties across diverse systems. Here, we introduce a GAP model for low-dimensional Ni…

Materials Science · Physics 2024-11-01 Suvo Banik , Partha Sarathi Dutta , Sukriti Manna , Subramanian KRS Sankaranarayanan

Stacking-dependent interlayer interactions are important for understanding the structural and electronic properties in incommensurable two dimensional material assemblies where long-range moir\'e patterns arise due to small lattice constant…

Mesoscale and Nanoscale Physics · Physics 2017-12-06 Nicolas Leconte , Jeil Jung , Sébastien Lebègue , Tim Gould

We demonstrate snake-like motion of graphene nanoribbons atop graphene and hexagonal boron nitride (h-BN) substrates using fully-atomistic non-equilibrium molecular dynamics simulations. The sliding dynamics of the edge-pulled nanoribbons…

Mesoscale and Nanoscale Physics · Physics 2018-10-23 Wengen Ouyang , Davide Mandelli , Michael Urbakh , Oded Hod

Machine learning (ML) has become widely used in the development of interatomic potentials for molecular dynamics simulations. However, most ML potentials are still much slower than classical interatomic potentials and are usually trained…

Materials Science · Physics 2024-08-29 Aslak Fellman , Jesper Byggmästar , Fredric Granberg , Kai Nordlund , Flyura Djurabekova

Material characterization in nano-mechanical tests requires precise interatomic potentials for the computation of atomic energies and forces with near-quantum accuracy. For such purposes, we develop a robust neural-network interatomic…

Hexagonal boron nitride (hBN) regains interest as a strategic component in graphene engineering and in van der Waals heterostructures built with two dimensional materials. It is crucial then, to handle reliable characterization techniques…

Materials Science · Physics 2016-10-24 Leonard Schue , Ingrid Stenger , Frederic Fossard , Annick Loiseau , Julien Barjon

Vertical integration of two-dimensional materials has recently emerged as an exciting method for the design of novel electronic and optoelectronic devices. Using density functional theory, we investigatethe structural and electronic…

Materials Science · Physics 2015-06-25 Yongqing Cai , Gang Zhang , Yong-Wei Zhang