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Zinc nitride films were synthesized by reactive radio frequency (rf) magnetron sputtering of a zinc target using an Ar+N2 mixture. The as-deposited films were annealed in the air and O2 at 300 {\deg}C for 1 hr. The XRD measurements…

Materials Science · Physics 2023-01-18 Ting Wen , Ahalapitiya H Jayatissa

Metal - organic nanocomposite thin films represent a versatile class of materials whose properties can be effectively tuned through external stimuli. In this study, Ag+C60 and Au+C60 nanocomposite thin films were briefly investigated to…

Deposits of one-dimensional nanostructures of zinc with diameters of 90-120 nm have been obtained by means of sputtering in an Electron Cyclotron Resonance (ECR) plasma reactor. The sputtering has been made effective by using a negatively…

Free-standing monolayer amorphous carbon (MAC) is a pure carbon structure composed of randomly distributed atom rings with different sizes, which was recently synthesized. In this work, we carried out ab initio and tight-binding…

Materials Science · Physics 2021-03-17 Raphael M. Tromer , Levi C. Felix , Luiz A. Ribeiro , Douglas S. Galvao

We report the direct observation of superconductivity in nitridized-aluminum thin films. The films are produced by sputtering deposition of aluminum in a controlled mixture of nitrogen diluted in argon. The concentration of applied nitrogen…

Crystalline wurtzite zinc oxide (w-ZnO) can be used as a wide band gap semiconductor for light emitting devices and for transparent or high temperature electronics. The use of amorphous zinc oxide (a-ZnO) can be an advantage in these…

Materials Science · Physics 2022-11-29 M. Zubkins , J. Gabrusenoks , G. Chikvaidze , I. Aulika , J. Butikova , R. Kalendarev , L. Bikse

We present studies of the cyclotron resonance (CR) in thick Cd$_x$Hg$_{1-x}$Te films with different cadmium concentrations corresponding to inverted and normal band order, as well as to an almost linear energy dispersion. Our results…

Epitaxial graphene films have been formed on the C-face of semi-insulating 4H-SiC substrates by a high temperature sublimation process. Nano-scale square antidot arrays have been fabricated on these graphene films. At low temperatures,…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 T. Shen , Y. Q. Wu , M. A. Capano , L. R. Rokhinson , L. W. Engel , P. D. Ye

Amorphous graphene or amorphous monolayer carbon (AMC) is a family of carbon films that exhibit a surprising sensitivity of electronic conductance to morphology. We combine deep learning-enhanced simulation techniques with percolation…

Mesoscale and Nanoscale Physics · Physics 2025-04-30 Nicolas Gastellu , Ata Madanchi , Lena Simine

Micron-thick boron films have been deposited by Pulsed Laser Deposition in vacuum on several substrates at room temperature. The use of high energy pulses (>700 mJ) results in the deposition of smooth coatings with low oxygen uptake even at…

In our previously published work, we have reported colossal magnetoresistance, Andreev oscillations, ferromagnetism, and granular superconductivity in oxygen-implanted carbon fibers, graphite foils, and highly oriented pyrolytic graphite.…

The satisfactory explanation of abnormal electromagnetics in thin graphite-like carbon films till now is absent. The most comprehensible explanation may be the high-temperature superconductivity (HTSC). Times of spasmodic switching of…

Superconductivity · Physics 2007-05-23 S. G. Lebedev , V. E. Yants , A. S. Lebedev

Resistive switching in amorphous silicon carbide (a-SiC) films deposited by a single composite target magnetron sputtering process is reported. Switching performance as a function of thickness of the films (50, 100 and 300 nm) as well as…

Applied Physics · Physics 2019-08-13 P. Chaitanya Akshara , Nilanjan Basu , Jayeeta Lahiri , G. Rajaram , M. Ghanashyam Krishna

The present work is essentially focused on the study of optical and structural properties of hydrogenated amorphous silicon thin films (a-Si:H) prepared by radio-frequency cathodic sputtering. We examine separately the influence of hydrogen…

Materials Science · Physics 2007-05-23 A. Barhdadi , M. Chafik El Idrissi

Optimized DC magnetron sputtering system for the deposition of transparent conductive oxides (TCOs), such indium tin oxide (ITO) on glass substrate has been applied in order to achieve low-emitting (low-e) transparent coatings. To obtain…

Materials Science · Physics 2014-09-19 Hadi Askari , Hamidreza Fallah , Mehdi Askari , Mehdi Charkhchi Mohmmadieyh

Spin gapless semiconductors are interesting novel class of materials by embracing both magnetism and semiconducting. Its potential application in future spintronics requires realization in thin film form. In this letter, we report a…

Materials Science · Physics 2019-08-17 G. Z. Xu , Y. Du , X. M. Zhang , H. G. Zhang , E. K. Liu , W. H. Wang , G. H. Wu

Traces of superconductivity (SC) at elevated temperatures (up to 65 K) were observed by magnetic measurements in three different inhomogeneous sulfur doped amorphous carbon (a-C) systems: (a) in commercial and (b) synthesized powders and…

Superconductivity · Physics 2013-11-13 Israel Felner

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…

Materials Science · Physics 2015-05-13 Surendra Singh , Saibal Basu , S. K. Ghosh

A few atomic layers of helium adsorbed on graphite have been attracting much attention as one of the ideal quantum systems in two dimension. Although previous reports on neutron diffraction have shown fundamental structural information in…

AlScN thin films were grown via metalorganic chemical vapor deposition (MOCVD), showing controllable incorporation of scandium (Sc) into the AlN lattices. Systematic variation of growth parameters demonstrated an obvious influence on Sc…