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Related papers: Towards Obtaining 2D and 3D and 1D PtPN with Penta…

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Overcoming the challenge of limited data availability within materials science is crucial for the broad-based applicability of machine learning within materials science. One pathway to overcome this limited data availability is to use the…

Materials Science · Physics 2024-12-24 Reshma Devi , Keith T. Butler , Gopalakrishnan Sai Gautam

The dilute-nitride ternary compound GaP$_{1-x}$N$_{x}$ is highly attractive to monolithically integrate pseudomorphic red light-emitting devices and photovoltaic cells with the standard Si technology because it is lattice matched to Si with…

Materials Science · Physics 2023-10-09 Karim Ben Saddik , Basilio Javier García , Sergio Fernández-Garrido

The formation of a 3D network composed of free standing and interconnected Pt nanowires is achieved by a two-step method, consisting of conformal deposition of Pt by atomic layer deposition (ALD) on a forest of carbon nanotubes and…

The structural energetics of PdTi and PtTi have been studied using first-principles density-functional theory with pseudopotentials and a plane-wave basis. We predict that in both materials, the experimentally reported orthorhombic $B19$…

Materials Science · Physics 2009-11-07 Xiangyang Huang , Karin M. Rabe , Graeme J. Ackland

Our First-principles Full-Potential Density Functional Theory (DFT) calculations show that a monolayer of ZnS (ML-ZnS), which is predicted to adopt a graphene-like planar honeycomb structure with a direct band gap, undergoes strain-induced…

Mesoscale and Nanoscale Physics · Physics 2014-01-27 Harihar Behera , Gautam Mukhopadhyay

By using ab inito calculations within Density Functional Theory, we have explored the possible structures and various properties of porous AlN monolayer materials. Two kinds of porous AlN monolayer are identified, and the phonon dispersion…

Materials Science · Physics 2020-04-22 Yanwei Luo , Jiahui Hu , Yu Jia

The Click-though Rate (CTR) prediction task is a basic task in recommendation system. Most of the previous researches of CTR models built based on Wide \& deep structure and gradually evolved into parallel structures with different modules.…

Machine Learning · Computer Science 2022-06-22 Ri Su , Alphonse Houssou Hounye , Cong Cao , Muzhou Hou

In this investigation, we conducted density functional theory simulations to explore the mechanical responses of single-layer GeP, GeAs, SiP and SiAs. In particular, we explored the possibility of band-gap engineering in these 2D structures…

Computational Physics · Physics 2018-06-19 Bohayra Mortazavi , Timon Rabczuk

In the purpose of expanding the family of two-dimensional materials, we predict the existence of two-dimensional octa-structure of nitrogen group elements that are composed of squares and octagons in first-principle method based on density…

Materials Science · Physics 2015-12-08 Yu Zhang , Jason Lee , Wei-Liang Wang , Dao-Xin Yao

We extend previous work applying elementary matrix mechanics to one-dimensional periodic arrays (to generate energy bands) to two-dimensional arrays. We generate band structures for the square lattice "2D Kronig-Penney model" (square…

Mesoscale and Nanoscale Physics · Physics 2018-01-09 R. L. Pavelich , F. Marsiglio

Two-dimensional (2D) materials have been studied extensively as monolayers 1-5, vertical or lateral heterostructures 6-8. To achieve functionalization, monolayers are often patterned using soft lithography and selectively decorated with…

Materials Science · Physics 2020-04-15 X Lin , JC Lu , Y Shao , YY Zhang , X Wu , JB Pan , L Gao , SY Zhu , K Qian , YF Zhang , DL Bao , LF Li , YQ Wang , ZL Liu , JT Sun , T Lei , C Liu , JO Wang , K Ibrahim , DN Leonard , W Zhou , HM Guo , YL Wang , SX Du , ST Pantelides , H-J Gao

Phagraphene (PhaG) is a quasi-planar 2D structure composed of $5-6-7$ ring sequence. We have investigated the structural and mechanical properties of phagraphene nanotubes (PhaNTs) through fully atomistic reactive molecular dynamics (MD)…

Penta-graphene is the name given to a novel puckered monolayer of carbon atoms tightly packed into an inerratic pentagonal network, theoretically, which exhibits excellent thermal and mechanical stability and can be rolled into…

Materials Science · Physics 2017-09-26 Mingwei Chen , Haifei Zhan , Yinbo Zhu , Hengan Wu , Yuantong Gu

We present a detailed quantum mechanical non empirical DFT investigation of the energy-optimized geometries, phase stabilities and electronic properties of bulk Pt3N, PtN and PtN2 in a set of twenty different crystal structures. Structural…

Materials Science · Physics 2013-01-24 Mohammed S. H. Suleiman , Daniel P. Joubert

The search for new materials is a very intense task in many technological areas. In 2015, a new variant of graphene was proposed, the pentagraphene, which was followed by the propose of a pentagonal boron nitride structure called…

Materials Science · Physics 2021-01-25 M. A. L. Dantas , N. F. Frazão , David L. Azevedo , Jonas R. F. Lima

We present a tight-binding parametrization for penta-graphene that correctly describes its electronic band structure and linear optical response. The set of parameters is validated by comparing to ab-initio density functional theory…

Materials Science · Physics 2020-12-25 Sergio Bravo , J. D. Correa , Leonor Chico , M. Pacheco

Here we a present a density functional theory study of pentacene ultra-thin films on flat [(111)] and vicinal [(455)] Au surfaces. We have performed crystal and electronic structure calculations by using PBE and optB86b-vdW functionals and…

Materials Science · Physics 2020-05-20 Ersen Mete , Mehmet Fatih Danisman

The band structure and size-scaling of electronic properties in self-assembled cyclic oligothiophene nanotubes are investigated using density functional theory (DFT) for the first time. In these unique tubular aggregates, the {\pi}-{\pi}…

Mesoscale and Nanoscale Physics · Physics 2015-03-13 Bryan M. Wong , Simon H. Ye

Common two-dimensional (2D) materials have a layered 3D structure with covalently bonded, atomically thin layers held together by weak van der Waals forces. However, in a recent transmission electron microscopy experiment, atomically thin…

Mesoscale and Nanoscale Physics · Physics 2018-02-07 Janne Nevalaita , Pekka Koskinen

We present a paradigm in constructing very stable, faceted nanotube and fullerene structures by laterally joining nanoribbons or patches of different planar phosphorene phases. Our ab initio density functional calculations indicate that…

Materials Science · Physics 2015-06-23 Jie Guan , Zhen Zhu , David Tománek