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相关论文: Three metallic BN polymorphs: 1D multi-threaded co…

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In twisted layered materials (t-LMs), an inter-layer rotation can break inversion symmetry and create an interfacial array of staggered out-of-plane polarization due to AB/BA stacking registries. This symmetry breaking can also trigger the…

Topological insulators hold great potential for efficient information processing and storage. Using density functional theory calculations, we predict that a honeycomb lead monolayer can be stabilized on the Al2O3 (0001) substrate and…

材料科学 · 物理学 2018-10-12 Hui Wang , D. Lu , J. Kim , Z. Wang , S. T. Pi , R. Q. Wu

Applying long wavelength periodic potentials on quantum materials has recently been demonstrated to be a promising pathway for engineering novel quantum phases of matter. Here, we utilize twisted bilayer boron nitride (BN) as a moir\'e…

We investigate the electronic structure and several properties, and topological character, of the cubic time-reversal invariant intermetallic compounds PbPd$_3$ and SnPd$_3$ using density functional theory based methods. These compounds…

材料科学 · 物理学 2018-07-23 Kyo-Hoon Ahn , W. E. Pickett , K. -W. Lee

We undertook an ab-initio study of hexagonal boron nitride (hBN) sandwiched between Ni(111) layers to examine the interface of this material structure. We considered Ni(111)/hBN/Ni(111) with a slab with three Ni atomic layers to determine…

介观与纳米尺度物理 · 物理学 2022-04-15 Halimah Harfah , Yusuf Wicaksono , Muhammad Aziz Majidi , Koichi Kusakabe

Although Boron nitride (BN) is a well-known compound widely used for engineering and scientific purposes, the phase stability of its polymorphs, one of its most fundamental properties, is still under debate. The ab initio determination of…

Insulating-metallic transition mediated by substitutional atoms is predicted in a series of two-dimensional carbon-based structures. Introducing Si atoms in selected sites of tetrahexcarbon [Carbon 137 (2018) 266] according to rational…

材料科学 · 物理学 2022-02-16 Alejandro Lopez-Bezanilla , Peter B. Littlewood

In a groundbreaking experimental advance it was recently shown that by stacking two sheets of graphene atop of each other at a twist angle close to one of the so called "magic angles", an effective two-dimensional correlated system emerges.…

介观与纳米尺度物理 · 物理学 2019-10-01 Lede Xian , Dante M. Kennes , Nicolas Tancogne-Dejean , Massimo Altarelli , Angel Rubio

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

The first-principles calculations predict a stable biphenylene carbon network (BPN) like the Boron-nitride structure named inorganic biphenylene network (I-BPN). A comparison has been done between BPN and I-BPN to examine the stability of…

材料科学 · 物理学 2023-12-25 Ajay Kumar , Parbati Senapati , Prakash parida

A multitude of observed boron-based materials have outstanding superconducting, mechanical, and refractory properties. Yet, the structure, the composition, and the very existence of some reported metal boride (M-B) compounds have been a…

材料科学 · 物理学 2014-10-03 A. G. Van Der Geest , A. N. Kolmogorov

This study focuses on amorphous boron nitride ($\rm \alpha$-BN) as a novel diffusion barrier for advanced semiconductor technology, particularly addressing the critical challenge of copper diffusion in back-end-of-line (BEOL) interconnects.…

Coordination chemistry relies on harnessing active metal sites within organic matrices. Polynuclear complexes - consisting of organic ligands binding to clusters of several metal atoms are of particular interest, owing to their…

介观与纳米尺度物理 · 物理学 2018-09-05 Cornelius Krull , Marina Castelli , Prokop Hapala , Dhaneesh Kumar , Pavel Jelinek , Agustin Schiffrin

First-principles calculations through a FLAPW-GGA method for six possible polymorphs of ruthenium mononitride RuN with various atomic coordination numbers CNs: cubic zinc blende (ZB) and cooperite PtS-like structures with CNs = 4; cubic…

材料科学 · 物理学 2015-05-18 V. V. Bannikov , I. R. Shein , A. L. Ivanovskii

Electronic structure of recently discovered isotypic ternary borides Li$_2$Pd$_3$B and Li$_2$Pt$_3$B, with noncentrosymmetric crystal structures, is studied with a view to understanding their superconducting properties. Estimates of the…

超导电性 · 物理学 2015-06-25 S. K. Bose , E. S. Zijlstra

We study the electronic structure and magnetic properties of h-BN triangular clusters embedded in graphene supercells. We find that, depending on the sizes of the clusters and the graphene separation region between them, spin polarization…

介观与纳米尺度物理 · 物理学 2012-12-05 Marcos G. Menezes , Rodrigo B. Capaz

Using first principles calculations, this work investigates the suitability of diamond/c-BN heterojunctions for high frequency, high power device applications. The key quantities of band offsets and interface charge polarization are…

材料科学 · 物理学 2023-10-12 Jeffrey T. Mullen , James A. Boulton , Minghao Pan , Ki Wook Kim

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…

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…

材料科学 · 物理学 2017-10-18 Jin Yu , Lihua Qu , Edo van Veen , Mikhail I. Katsnelson , Shengjun Yuan

We have investigated electronic structures and phonon spectra of newly discovered isostructural superconductors LaNiBN (T_c = 4.1 K) and LaPtBN (T_c = 6.7 K). We have found that their electronic structures are substantially…

超导电性 · 物理学 2013-04-19 Myung-Chul Jung , Chang-Jong Kang , B. I. Min , K. -W. Lee