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Temperature-dependent resistivity of graphene grown by chemical vapor deposition (CVD) is investigated. We observe in low mobility CVD graphene device a strong insulating behavior at low temperatures and a metallic behavior at high…

Mesoscale and Nanoscale Physics · Physics 2011-08-16 J. Heo , H. J. Chung , Sung-Hoon Lee , H. Yang , D. H. Seo , J. K. Shin , U-In Chung , S. Seo , E. H. Hwang , S. Das Sarma

We demonstrated that chemical vapor deposition of graphene on Cu films strongly enhances their thermal diffusivity and thermal conductivity. Deposition of graphene increases the thermal conductivity of 9 micrometer (25 micrometer) thick Cu…

Amorphous silica (a-SiO2) exhibits unique thermo-mechanical behaviors that set it apart from other glasses. However, there is still limited understanding of how this mechanical behavior is related to the atomic structure and to the…

Atomically-abrupt interfaces in transition metal oxide (TMO) heterostructures could host a variety of exotic condensed matter phases that may not be found in the bulk materials at equilibrium. A critical step in the development of such…

A high temperature for some catalytic reactions like synthesis of large area and high quality graphene is required. The mentioned graphene can be obtained by a chemical vapour deposition (CVD) process on copper foil at 800 1000. Here, we…

Materials Science · Physics 2016-08-15 Morteza Hajian , Mehdi Zareie , Davood Hashemian , Mohammad bahrami

Plasma enhanced atomic layer deposition was used to deposit thin films of Ga2O3 on to c-plane sapphire substrates using triethylgallium and O2 plasma. The influence of substrate temperature and plasma processing parameters on the resultant…

The experiment was conducted to synthesize carbon nanospheres of different sizes by controlling the temperature in polycondensation reaction of glucose under hydrothermal process. The surface morphology, structural, optical, and thermal…

Materials Science · Physics 2017-06-20 Priya Karna , Sunil Karna

Continuously graded ferromagnetic thin films represent a new class of magnonic materials, where a spin-wave resonance spectrum can be tuned in resonance frequencies/fields, number of modes and even dispersion law by the magnetic properties…

Materials Science · Physics 2024-11-26 Igor Yanilkin , Amir Gumarov , Bulat Gabbasov , Roman Yusupov , Lenar Tagirov

Glasses formed by physical vapor deposition (PVD) are an interesting new class of materials, exhibiting properties thought to be equivalent to those of glasses aged for thousands of years. Exerting control over the structure and properties…

Soft Condensed Matter · Physics 2022-10-12 Alex R. Moore , Patrick J. Walsh , Zahra Fakhraai , Robert A. Riggleman

We apply a previously developed asymptotic model (J. Fluid. Mech. 915, A133 (2021)) to study instabilities of free surface films of nanometric thickness on thermally conductive substrates in two and three spatial dimensions. While the…

Fluid Dynamics · Physics 2021-10-26 Ryan H. Allaire , Linda J. Cummings , Lou Kondic

Highly textured chalcogenide films have recently gained significant interest for phase-change memory applications. Several reports have highlighted that programming efficiency improves in devices featuring superlattice stacks, such as…

We perform a kinetic Monte Carlo simulation study of a model of thin film deposition of a two-component mixture in which the activation energy for diffusion of an adatom is additive over its nearest neighbors and in which the interactions…

Materials Science · Physics 2021-06-11 Tung B. T. To , Fábio D. A. Aarão Reis

Graphene growth by chemical vapor deposition has received a lot of attention recently owing to the ease with which large area films can be grown, but growth of large domain or equivalently large grain size has not been reported yet. In this…

Materials Science · Physics 2010-10-20 Xuesong Li , Carl W. Magnuson , Archana Venugopal , Eric M. Vogel , Rodney S. Ruoff , Luigi Colombo

Amorphous silicon films prepared by electron beam evaporation have systematically and substantially greater atomic density for higher thickness, higher growth temperature, and slower deposition rate, reaching the density of crystalline Si…

Materials Science · Physics 2022-04-27 H. C. Jacks , M. Molina-Ruiz , M. H. Weber , J. J. Maldonis , P. M. Voyles , T. H. Metcalf , X. Liu , F. Hellman

The thermophysical properties of supported and free-standing nanomaterials would be different due to the substrate effect. To determine the thermophysical properties of supported 2D nanomaterials, this paper developed a two-step…

Instrumentation and Detectors · Physics 2021-09-02 Aoran Fan , Haidong Wang , Weigang Ma , Xing Zhang

Chemical vapor deposition (CVD) is an important method to synthesis grapheme on a substract. Recently, Cu becomes the most popular CVD substrate for graphene growth. Here, we combine electronic structure calculation, molecular dynamics…

Materials Science · Physics 2011-09-14 Wenhua Zhang , Ping Wu , Zhenyu Li , Jinlong Yang

Fe filled carbon nanotubes were synthesized by atmospheric pressure chemical vapor deposition using a simple mixture of iron acetylacetonate with a conventional photoresist and the effect of growth temperature from 550 to 950 {\deg}C on Fe…

Applied Physics · Physics 2020-04-28 Joydip Sengupta , Avijit Jana , N. D. Pradeep Singh , Chacko Jacob

We have studied thermodynamics of the Mg-B system with the modeling technique CALPHAD using a computerized optimization procedure. Temperature-composition, pressure-composition, and pressure-temperature phase diagrams under different…

Materials Science · Physics 2009-11-07 Zi-Kui Liu , D. G. Schlom , Qi Li , X. X. Xi

The structural, magnetic and dielectric properties have been investigated in 3$d$-5$d$ based double perovskite Sr$_2$FeIrO$_6$ thin films deposited by pulse laser deposition technique. To understand the effect of strain, epitaxial films are…

Strongly Correlated Electrons · Physics 2020-12-02 K. C. Kharkwal , Roshan Kumar Patel , K. Asokan , A. K. Pramanik

We report graphene films composed mostly of one or two layers of graphene grown by controlled carbon precipitation on the surface of polycrystalline Ni thin films during atmospheric chemical vapor deposition(CVD). Controlling both the…