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Improving the film quality in the synthesis of large-area hexagonal boron nitride films (h-BN) for two-dimensional material devices remains a great challenge. The measurement of electrical breakdown dielectric strength (EBD) is one of the…

材料科学 · 物理学 2017-01-04 Yoshiaki Hattori , Takashi Taniguchi , Kenji Watanabe , Kosuke Nagashio

The scalable synthesis of two-dimensional (2D) hexagonal boron nitride (h-BN) is of great interest for its numerous applications in novel electronic devices. Highly-crystalline h-BN films, with single-crystal sizes up to hundreds of…

Sliding ferroelectricity in bilayer hexagonal boron nitride (h-BN) offers compelling prospects for next-generation non-volatile memory, yet the atomistic dynamics of electric-field-driven polarization switching remain poorly understood.…

材料科学 · 物理学 2026-05-01 Yinan Wang , Poyen Chen , Teruyasu Mizoguchi

In this study, we demonstrate that defected h--BN (1B-3N and 1N-3B defects) can be used as a suitable membrane for hydrogen purification and helium separation using density functional theory (DFT) calculations and molecular dynamics…

材料科学 · 物理学 2020-04-17 Parham Rezaee , Mohsen Tafazzoli

We investigate the electronic properties of heterostructures based on ultrathin hexagonal boron nitride (h-BN) crystalline layers sandwiched between two layers of graphene as well as other conducting materials (graphite, gold). The tunnel…

The emerging ferroelectric properties of two-dimensional (2D) heterostructures are at the forefront of science and prospective technology. In moir\'e bilayers, twisting or heterostructuring causes local atomic reconstruction, which even at…

材料科学 · 物理学 2025-03-18 Wilson Nieto Luna , Robin Smeyers , Cem Sevik , Lucian Covaci , Milorad V. Milošević

Hexagonal boron nitride (h-BN) is well-established as a requisite support, encapsulant and barrier for 2D material technologies, but also recently as an active material for applications ranging from hyperbolic metasurfaces to room…

Hexagonal boron nitride (hBN) is drawing increasing attention as an insulator and substrate material to develop next generation graphene-based electronic devices. In this paper, we investigate the quantum transport in heterostructures…

介观与纳米尺度物理 · 物理学 2015-06-30 Y. Zhao , Z. Wan , X. Xu , S. R. Patil , U. Hetmaniuk , M. P. Anantram

Optically addressable defect qubits in wide band gap materials are favorable candidates for room temperature quantum information processing. The two-dimensional (2D) hexagonal boron nitride (hBN) is an attractive solid state platform with a…

材料科学 · 物理学 2024-09-10 Song Li , Anton Pershin , Adam Gali

Development of cost-effective hydrogen evolution reaction (HER) catalysts with outstanding catalytic activity, replacing cost-prohibitive noble metal-based catalysts, is critical for practical green hydrogen production. A popular strategy…

Two-dimensional (2D) hexagonal boron nitride (BN) nanosheets are excellent dielectric substrate for graphene, molybdenum disulfide and many other 2D nanomaterials based electronic and photonic devices. To optimize the performance of these…

Hexagonal boron nitride (hBN) has emerged as a promising two-dimensional (2D) material for many applications in photonics. Although its linear and nonlinear optical properties have been extensively studied, its interaction with…

Wurtzite boron nitride (wBN) is a polymorph of boron nitride and serves as an intermediate phase in the transition from hBN to cBN under high pressure and temperature conditions. Owing to these extreme synthesis conditions, wBN likely…

材料科学 · 物理学 2025-06-27 M. Silvetti , M. Pouyot , E. Cannuccia

Creation of defect with predetermined optical, chemical and other characteristics is a powerful tool to enhance the functionalities of materials. Herewith, we utilize density functional theory to understand the microscopic mechanisms of…

材料科学 · 物理学 2022-08-31 P. Huang , M. Grzeszczyk , K. Vaklinova , K. Watanabe , T. Taniguchi , K. S. Novoselov , M. Koperski

The integration of membranes into optical resonators plays a key role in a variety of applications, including optomechanics. If such membranes host atom-like systems, ideally with access to spin states, new roads in quantum photonics and…

光学 · 物理学 2025-09-03 Patrick Maier , Alexander Kubanek

Evaluation of the defect levels in low-dimensional materials is an important aspect of quantum science. In this article, we report a facile synthesis method of hexagonal boron nitride (h-BN) and evaluate the defects and their light emission…

介观与纳米尺度物理 · 物理学 2022-03-30 Ashly Sunny , Aniket Balapure , Ramakrishnan Ganesan , R. Thamankar

Based on a microcanonical picture that maps the steady-state quantum transport process to a drain-to-source excitation, we develop a constrained-search density functional formalism for finite-bias quantum transport calculations. By…

介观与纳米尺度物理 · 物理学 2018-08-13 Han Seul Kim , Yong-Hoon Kim

Atomic defects in solids offer a versatile basis to study and realize quantum phenomena and information science in various integrated systems. All-electrical pumping of single defects to create quantum light emission has been realized in…

量子物理 · 物理学 2025-01-03 Mihyang Yu , Jeonghan Lee , Kenji Watanabe , Takashi Taniguchi , Jieun Lee

Defects play a key role in determining the properties of most materials and, because they tend to be highly localized, characterizing them at the single-defect level is particularly important. Scanning tunneling microscopy (STM) has a…

We investigate tunneling in metal-insulator-metal junctions employing few atomic layers of hexagonal boron nitride (hBN) as the insulating barrier. While the low-bias tunnel resistance increases nearly exponentially with barrier thickness,…

介观与纳米尺度物理 · 物理学 2019-03-26 U. Chandni , K. Watanabe , T. Taniguchi , J. P. Eisenstein