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Transparent and colorless hexagonal boron nitride (hBN) single crystals were grown from the Mg-B-N system using high-pressure high-temperature cubic anvil technique. By varying the synthesis conditions we could determine the sequence of…

Materials Science · Physics 2014-07-09 N. D. Zhigadlo

Boron nitride structures have excellent thermal and chemical stabilities. Based on state-of-art theoretical calculations, we propose a wide gap semiconducting BN crystal with a three-dimensional hyperhoneycomb structure (Hp-BN), which is…

Materials Science · Physics 2017-10-18 Jin Yu , Lihua Qu , Edo van Veen , Mikhail I. Katsnelson , Shengjun Yuan

For nearly two decades, it has been known that electron irradiation of hexagonal boron nitride (hBN) in a transmission electron microscope leads to the formation of triangular pores. This has been attributed to the lower displacement…

Hexagonal boron nitride (hBN) is a prototypical high-quality two-dimensional insulator and an ideal material to study tunneling phenomena, as it can be easily integrated in vertical van der Waals devices. For spintronic devices, its…

We study fully hexagonal boron nitride (hBN)-encapsulated graphene spin valve devices at room temperature. The device consists of a graphene channel encapsulated between two crystalline hBN flakes; thick-hBN flake as a bottom gate…

Mesoscale and Nanoscale Physics · Physics 2016-04-01 M. Gurram , S. Omar , S. Zihlmann , P. Makk , C. Schönenberger , B. J. van Wees

We introduced a method to obtain the continuum description of the elastic properties of mono- layer h-BN through ab initio density functional theory. This thermodynamically rigorous contin- uum description of the elastic response is…

Materials Science · Physics 2012-02-01 Qing Peng , Amir R. Zamiri , Suvranu De

This paper presents a systematic study of two and one dimensional honeycomb structure of boron nitride (BN) using first-principles plane wave method. Two-dimensional (2D) graphene like BN is a wide band gap semiconductor with ionic bonding.…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 M. Topsakal , E. Akturk , S. Ciraci

Dielectrics are insulating materials used in many different electronic devices and play an important role in all of them. Current advanced electronic devices use dielectric materials with a high dielectric constant and avoid high leakage…

Applied Physics · Physics 2019-05-17 Fei Hui

Hexagonal boron nitride is rapidly gaining interest as a platform for photonic quantum technologies, due to its two-dimensional nature and its ability to host defects deep within its large band gap that may act as room-temperature…

The unique physical, mechanical, chemical, optical, and electronic properties of hexagonal boron nitride (hBN) make it a promising two-dimensional material for electronic, optoelectronic, nanophotonic, and quantum devices. Here we report on…

Materials Science · Physics 2023-06-26 E. Janzen , H. Schutte , J. Plo , A. Rousseau , T. Michel , W. Desrat , P. Valvin , V. Jacques , G. Cassabois , B. Gil , J. H. Edgar

Hexagonal boron nitride (hBN) has emerged as a promising two-dimensional platform for quantum sensing, due to its optically addressable spin defects, such as the negatively charged boron vacancy ($V_{\text{B}}^-$). Despite hBN being…

Monolayer-thick hexagonal boron nitride (h-BN) is grown on graphene on SiC(0001), by exposure of the graphene to borazine, (BH)3(NH)3, at 1100 C. The h-BN films form ~2-micrometer size grains with a preferred orientation of 30 degrees…

Mesoscale and Nanoscale Physics · Physics 2018-08-15 Patrick C. Mende , Jun Li , Randall M. Feenstra

The influence of triaxial in-plane strain on the electronic properties of a hexagonal boron-nitride sheet is investigated using density functional theory. Different from graphene, the triaxial strain localizes the molecular orbitals of the…

Mesoscale and Nanoscale Physics · Physics 2013-09-13 M. Neek-Amal , J. Beheshtian , A. Sadeghi , K. H. Michel , F. M. Peeters

Graphene-covered copper surfaces have been exposed to borazine, (BH)3(NH)3, with the resulting surfaces characterized by low-energy electron microscopy. Although the intent of the experiment was to form hexagonal boron nitride (h-BN) on top…

We perform the first-principles many-body GW and Bethe-Salpeter equation (BSE) calculations on the two-dimensional hexagonal boron nitride (2D-hBN) to explore the effects of opposite atoms on the electronic structure and linear one-photon…

Materials Science · Physics 2023-01-04 You-Zhao Lan

Nonlinear light-matter interactions in structured materials are the source of exciting properties and enable vanguard applications in photonics. However, the magnitude of nonlinear effects is generally small, thus requiring high optical…

Materials Science · Physics 2022-03-22 Fadil Iyikanat , Andrea Konečná , F. Javier García de Abajo

The hybrid graphene - hexagonal boron nitride (G-hBN) systems offer new routes in the design of nanoscale electronic devices. Using {\it ab initio} density functional theory calculations we investigate the dynamics of zig-zag nanoribbons a…

Materials Science · Physics 2016-09-21 George Alexandru Nemnes , Camelia Visan , Dragos Victor Anghel , Andrei Manolescu

Two-dimensional hexagonal boron nitride offers intriguing opportunities for advanced studies of light-matter interaction at the nanoscale, specifically for realizations in quantum nanophotonics. Here, we demonstrate the engineering of…

Applied Physics · Physics 2020-04-20 Mehran Kianinia , Simon White , Johannes E. Fröch , Carlo Bradac , Igor Aharonovich

Spontaneous orbital magnetism observed in twisted bilayer graphene (tBG) on nearly aligned hexagonal boron nitride (BN) substrate builds on top of the electronic structure resulting from combined G/G and G/BN double moire interfaces. Here…

Mesoscale and Nanoscale Physics · Physics 2021-02-24 Jiseon Shin , Youngju Park , Bheema Lingam Chittari , Jeil Jung

The field of graphene research has developed rapidly since its first isolation by mechanical exfoliation in 2004. Due to the relativistic Dirac nature of its charge carriers, graphene is both a promising material for next-generation…

Mesoscale and Nanoscale Physics · Physics 2014-07-09 Matthew Yankowitz , Jiamin Xue , Brian J. LeRoy
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