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Related papers: Mg/Ti multilayers: structural, optical and hydroge…

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Hydrogen adsorption on graphene can be increased by functionalization with Ti. This requires dispersing Ti islands on graphene as small and dense as possible, in order to increase the number of hydrogen adsorption sites per Ti atom. In this…

Materials Science · Physics 2020-02-17 Yuya Murata , Stefano Veronesi , Dongmok Whang , Stefan Heun

One way to characterize and understand HI-selected galaxies is to study their metallicity properties. In particular, we show that the metallicity of absorbers is a bivariate function of the HI column density (NHI) and the MgII equivalent…

Astrophysics · Physics 2009-11-13 Nicolas Bouche

Current contradictory understanding of passivation comes from overly-complex passive models, defective characterization and misplaced theoretical approaches. From brand-new experimentation, we find that a Ti passive membrane has…

Materials Science · Physics 2024-06-14 Weiwei Lao , Qiaojie Luo , Ying Huang , Haixu Zhong , Chaoqian Lou , Xuliang Deng , Xiufang Wen , Xiaodong Li

We present the intrinsic optical properties over a broad spectral range of TiN thin films deposited on a Si/SiO$_2$ substrate. We analyze the measured reflectivity spectra of the film-substrate multilayer structure within a well-establish…

Materials Science · Physics 2015-05-13 F. Pfuner , L. Degiorgi , T. I. Baturina , V. M. Vinokur , M. R. Baklanov

The recent synthesis of MoSi2N4 material, along with theoretical predictions encompassing the entire family of chemical analogs, has opened up a new array of low-dimensional materials for a diverse range of optoelectronics and photovoltaics…

Materials Science · Physics 2023-09-21 Muhammad Sufyan Ramzan , Tomasz Woźniak , Agnieszka Kuc , Caterina Cocchi

We report the obtaining and primary studies of ~ 250microns thick multi-layer Ti-based protective coating deposited at high cooling rate from substance generated by cathode arc discharge in vacuum. High adhesion to steel substrate was…

We present a detailed study of HI and metals for 110 MgII absorption systems discovered at 1.98 <= z <= 5.33 in the infrared spectra of high redshift QSOs. Using new measurements of rest-frame UV lines from optical spectra of the same…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Michael S. Matejek , Robert A. Simcoe , Kathy L. Cooksey , Eduardo N. Seyffert

We present extensive metal-line absorption properties for 45 absorption systems that were selected by their Mg II absorption at redshifts between 0.4 and 1.4. For each system the properties of several chemical species are determined,…

We present an alternative scheme for obtaining effective power dissipation in planar composites, extending the recently proposed concept of metagrating (MGs), sparse arrangements of polarizable particles (meta-atoms), to realize…

Applied Physics · Physics 2022-06-22 Yarden Yashno , Ariel Epstein

The dissociation of a hydrogen molecule on MgO(001) films deposited on Mo(001) surface is investigated systematically using periodic density-functional theory method. The unusual adsorption behavior of heterolytic dissociative hydrogen…

Chemical Physics · Physics 2016-04-29 Zhenjun Song , Hu Xu

The structural interface properties of layered Pt/Ti/SiO2/Si electrodes have been investigated using high-resolution specular and diffuse x-ray reflectivity under grazing angles. Currently this multilayer system represents a technological…

Materials Science · Physics 2007-05-23 M. Aspelmeyer , U. Klemradt , W. Hartner , H. Bachhofer , G. Schindler

We investigate the atomic hydrogen adsorption on Mg(0001) by using density-functional theory within the generalized gradient approximation and a supercell approach. The coverage dependence of the adsorption structures and energetics is…

Materials Science · Physics 2009-04-29 Yanfang Li , Ping Zhang , Bo Sun , Yu Yang , Yinghui Wei

Annealing of crystalline multilayers composed of two miscible elements usually causes interfacial mixing of the constituent atoms, possibly leading to the formation of binary alloys at the interfaces. Magnetron sputtered c-Ni/a-Zr…

Materials Science · Physics 2021-10-01 Debarati Bhattacharya , Vijay Karki , Surendra Singh , T. V. Chandrasekhar Rao

Titanium (Ti) is an adhesion and contact metal commonly used in nanoelectronics and two-dimensional (2D) materials research. However, when Ti is deposited on graphene (Gr), we obtain dramatically different film morphology depending on the…

This study presents a comprehensive investigation of chemical, structural, and magnetic properties of Ti/Ni multilayer systems with period thicknesses of 4 nm and 10 nm. Particular attention was paid to the characterization of the…

The structure and thermodynamic properties of Ti$_x$(HfNbTaZr)$_{(1-x)/4}$ from Refractory High Entropy multicomponent Alloys to pure titanium are investigated employing comprehensive MCSQS realizations of the disordered atomic structure…

Materials Science · Physics 2024-07-18 Asif I. Bhatti , Marwa Al-Houcine , David Tingaud , Sylvain Queyreau

We have carried out first-principles calculation of Mg(0001) free-standing thin films to study the oscillatory quantum size effect exhibited in the surface energy, work function, interlayer relaxation, and adsorption energy of the atomic…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Ping Zhang

Unlike other switchable mirrors, Mg2NiHx films show large changes in reflection that yield very low reflectance (high absorptance) at different hydrogen contents, far before reaching the semiconducting state. The resulting reflectance…

Materials Science · Physics 2009-11-10 J. L. M. van Mechelen , B. Noheda , W. Lohstroh , R. J. Westerwaal , J. H. Rector , B. Dam , R. Griessen

Two-dimensional (2D) metal halides have received more attention because of their electronic and optoelectronic properties. Recently, researchers are interested to investigate the thermoelectric properties of metal halide monolayers because…

Materials Science · Physics 2020-04-30 Atanu Betal , Jayanta Bera , Satyajit Sahu

Recent experiments on the silicon terminated $3\times 2$ SiC(100) surface indicated an unexpected metallic character upon hydrogen adsorption. This effect was attributed to the bonding of hydrogen to a row of Si atoms and to the…

Materials Science · Physics 2009-11-11 R. Di Felice , C. M. Bertoni , C. A. Pignedoli , A. Catellani