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Since graphene was synthesized the interest for building new 2D and 3D structures based on the carbon allotropes has been growing every day. One of these 3D structures is know as carbon schwarzites. Schwarzites consist of carbon…

材料科学 · 物理学 2020-08-26 Raphael M. Tromer , Levi C. Felix , Cristiano F. Woellner , Douglas S. Galvao

We present a theoretical study of the potential of Principal Component Analysis to analyse magnetic diffuse neutron scattering data on quantum materials. To address this question, we simulate the scattering function…

无序系统与神经网络 · 物理学 2021-07-13 Robert Twyman , Stuart J Gibson , James Molony , Jorge Quintanilla

Here, we report the first experimental demonstration of InN nanowire solar cells deposited by RF sputtering with a bandgap energy of 1.78 eV. By adding an amorphous Si (a-Si) buffer to the n-InN/p-Si structure, we have improved the…

应用物理 · 物理学 2025-11-24 M. Sun , R. Gómez , B. Damilano , J. M. Asensi , F. B. Naranjo , S. Valdueza-Felip

Sculptured copper thin films were deposited on glass substrates, using different deposition rates. The nano-structure and morphology of the films were obtained, using X-ray diffraction (XRD), atomic force microscopy (AFM) and scanning…

光学 · 物理学 2010-11-09 H. Savaloni , F. Babaei , S. Song , F. Placido

Previously derived Lane consistent dispersive coupled-channel optical model for nucleon scattering on $^{232}$Th and $^{238}$U nuclei is extended to describe scattering on even-even actinides with $Z=$90--98. A soft-rotator-model (SRM)…

核理论 · 物理学 2017-10-11 D. S. Martyanov , E. Sh. Soukhovitskii , R. Capote , J. M. Quesada , S. Chiba

We use ab initio density functional calculations to study the stability, elastic properties and electronic structure of sp2 carbon minimal surfaces with negative Gaussian curvature, called schwarzites. We focus on two systems with cubic…

介观与纳米尺度物理 · 物理学 2010-09-03 Sora Park , Kritsada Kittimanapun , Jeung-Sun Ahn , Young-Kyun Kwon , David Tomanek

Neutron diffraction and muon spin relaxation ($\mu$SR) studies are presented for the newly characterized polymorph of NiNb$_2$O$_6$ ($\beta$-NiNb$_2$O$_6$) with space group P4$_2$/n and $\mu$SR data only for the previously known columbite…

The adsorption behaviour of hazardous gas molecules, namely nitrogen dioxide (NO$_2$) and ammonia (NH$_3$), on phosphorene nanosheet (PNS) was explored by means of ab initio technique. To improve the structural solidity of pristine PNS, we…

介观与纳米尺度物理 · 物理学 2019-03-28 V. Nagarajan , R. Chandiramouli

The current paper presents the first attempt to recreate the origin of shungite carbon at microscopic level basing on knowledge accumulated by graphene science. The main idea of our approach is that different efficacy of chemical…

材料科学 · 物理学 2013-08-06 Natalia N. Rozhkova , Elena F. Sheka

The anharmonic phenomena in Zirconium Hydrides and Deuterides, including {\epsilon}-ZrH2, {\gamma}-ZrH, and {\gamma}-ZrD, have been investigated from aspects of inelastic neutron scattering (INS) and lattice dynamics calculations within the…

Inelastic neutron scattering (INS) spectra of hydrogen in face-centered cubic palladium have been calculated considering nuclear quantum effects (NQE) at finite temperatures. The calculations were performed using semiclassical Brownian…

化学物理 · 物理学 2024-02-06 Motoyuki Shiga , Bo Thomsen , Hajime Kimizuka

An algorithm is developed for structure identification of amorphous carbonaceous nanomaterials with a joint x-ray and neutron diffraction data analysis, using the data on the chemical composition of the sample from other diagnostics. The…

材料科学 · 物理学 2013-01-16 V. S. Neverov , V. V. Voloshinov , A. B. Kukushkin , A. S. Tarasov

Recently, laser-assisted chemical vapor deposition was used to synthesize a free-standing, continuous, and stable monolayer amorphous carbon (MAC). MAC is a pure carbon structure composed of randomly distributed five, six, seven, and eight…

Carbon nanomembranes (CNMs) are nanometer-thin disordered carbon materials that are suitable for a range of applications, from energy generation and storage, through to water filtration. The structure-property relationships of these…

We experimentally report a hitherto unseen angular anisotropy in the polarized small-angle neutron scattering (SANS) cross section of a magnetically strongly inhomogeneous material. Based on an analytical prediction using micromagnetic…

We present a detailed study of the interface morphology of an electro-deposited (ED) Ni/Cu bilayer film by using off-specular (diffuse) neutron reflectivity technique and Atomic Force Microscopy (AFM). The Ni/Cu bilayer has been…

材料科学 · 物理学 2015-05-13 Surendra Singh , Saibal Basu , S. K. Ghosh

Incoherent background can create an intrinsic problem for standard small angle neutron scattering measurements. Biological samples contain hydrogen which is a strong incoherent scatterer thus creating an intrinsic source of background that…

仪器与探测器 · 物理学 2010-06-24 E. Babcock , A. Ioffe , A. Radulescu , V. Pipich

Schwarzites are 3D crystalline porous materials exhibiting the shape of Triply Periodic Minimal Surfaces (TPMS). They possess negative Gaussian curvature, created by the presence of rings with more than six sp2-hybridized carbon atoms.…

材料科学 · 物理学 2020-01-20 Levi C. Felix , Cristiano F. Woellner , Douglas S. Galvao

Molecules and particles make up $\sim 40 - 70\%$ of carbon in the interstellar medium, yet the exact chemical structure of these constituents remains unknown. We present carbon K-shell absorption spectroscopy of the Galactic Interstellar…

高能天体物理现象 · 物理学 2023-05-31 John Staunton , Frits Paerels

The flexibility and versatility of nanoassembled plasmonic structures provide platforms for mesoscale tunable optical modulation. Our recently developed model for these nanoassembled plasmonic structures is composed of a dielectric…

光学 · 物理学 2024-12-31 Md. Imran Khan , Sayantani Ghosh , Arnold D. Kim