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Epitaxial MgB2 thick films were grown on Al2O3 substrates at 600 oC by using the hybrid physical chemical vapor deposition (HPCVD) technique. In order to obtain a high magnesium vapor pressure around the substrates, we used a special…

Using three-dimensional numerical simulations, we demonstrate the growth saturation of an unstable thin liquid film on micropatterned hydrophilic-hydrophobic substrates. We consider different transverse-striped micropatterns, characterized…

Soft Condensed Matter · Physics 2011-10-26 Rodrigo Ledesma-Aguilar , Aurora Hernandez-Machado , Ignacio Pagonabarraga

We consider a model to describe stable configurations in epitaxial growth of crystals in the two dimensional case, and in the regime of linearized elasticity. The novelty is that the model also takes into consideration the adatom density on…

Analysis of PDEs · Mathematics 2024-11-28 Riccardo Cristoferi , Gabriele Fissore

We present a combined experimental and computational method which enables the precise determination of the atomic positions in a thin film using CuK{\alpha} radiation, only. The capabilities of this technique surpass simple structure…

To obtain crystalline thin films of alpha-Quartz represents a challenge due to the tendency for the material towards spherulitic growth. Thus, understanding the mechanisms that give rise to spherulitic growth can help regulate the growth…

Materials Science · Physics 2021-09-01 Nick R. Lutjes , Silang Zhou , Jordi Antoja-Lleonart , Beatriz Noheda , Václav Ocelík

The mean-field Landau-type theory is used to analyze the polarization properties of epitaxial ferroelectric thin films grown on dissimilar cubic substrates, which induce biaxial compressive stress in the film plane. The intrinsic effect of…

Materials Science · Physics 2009-11-07 A. G. Zembilgotov , N. A. Pertsev , H. Kohlstedt , R. Waser

Spiral surface growth is well understood in the limit where the step motion is controlled by the local supersaturation of adatoms near the spiral ridge. In epitaxial thin-film growth, however, spirals can form in a step-flow regime where…

Materials Science · Physics 2009-10-31 Alain Karma , Mathis Plapp

(111)NiO epitaxial layers are grown on c-sapphire substrates by pulsed laser deposition (PLD) technique. Structural and morphological properties of the films are studied using in-plane as well as out-of-plane high resolution X-ray…

Materials Science · Physics 2021-05-26 Santosh Kumar Yadav , Subhabrata Dhar

The random deposition model must be enriched to reflect the variety of surface roughness due to some material characteristics of the film growing by vacuum deposition or sputtering. The essence of the computer simulation in this case is to…

Condensed Matter · Physics 2007-05-23 K. Malarz , A. Z. Maksymowicz

The metastable orthorhombic phase of hafnia is generally obtained in polycrystalline films, whereas in epitaxial films, its formation has been much less investigated. We have grown Hf0.5Zr0.5O2 films by pulsed laser deposition, and the…

Materials Science · Physics 2019-02-28 Jike Lyu , Ignasi Fina , Raul Solanas , Josep Fontcuberta , Florencio Sánchez

Effect of growth orientation on charge- and orbital-ordering (CO-OO) phenomena has been studied for Pr0.5Ca0.5MnO3 epitaxial thin films fabricated on (LaAlO3)0.3-(SrAl0.5Ta0.5O3)0.7 (LSAT) substrates by means of resistivity, synchrotron…

Strongly Correlated Electrons · Physics 2009-10-17 D. Okuyama , M. Nakamura , Y. Wakabayashi , H. Itoh , R. Kumai , H. Yamada , Y. Taguchi , T. Arima , M. Kawasaki , Y. Tokura

About ten years after ferroelectricity was first reported in doped HfO2 polycrystalline films, there is tremendous interest in this material and ferroelectric oxides are once again in the spotlight of the memories industry. Great efforts…

Materials Science · Physics 2021-04-28 Ignasi Fina , Florencio Sanchez

In recent decades, the growth of ultrathin epitaxial bismuth (Bi) films on various substrates has garnered interest due to their unique electronic properties. We report upon the growth and electrical transport properties of epitaxial Bi…

In this article, fractal concepts were used to explore the thermally evaporated potassium bromide thin films of different thicknesses 200, 300, and 500 nm respectively; grown on aluminium substrates at room temperature. The self-affine or…

Materials Science · Physics 2018-06-22 R. Rai , R. P. Yadav , Triloki , Nabeel Jammal , A. K. Singh , B. K. Singh

The epitaxial growth of complex oxide thin films provide three avenues to generate unique properties: the ability to influence the 3-dimensional structure of the film, the presence of a surface, and the generation of an interface. In all…

Materials Science · Physics 2010-05-31 N. J. C. Ingle , A. Yuskauskas , R. Wicks , M. Paul , S. Leung

Epitaxial thin films of the substitutionally alloyed half-Heusler series CoTi$_{1-x}$Fe$_x$Sb were grown by molecular beam epitaxy on InAlAs/InP(001) substrates for concentrations 0.0$\leq$x$\leq$1.0. The influence of Fe on the structural,…

The growth process of single layer graphene with and without substrate is investigated using ab initio, finite temperature molecular dynamic calculations within density functional theory. An understanding of the epitaxial graphene growth…

Materials Science · Physics 2012-06-27 V. Ongun Özçelik , S. Cahangirov , S. Ciraci

We report molecular beam epitaxial growth of a SnTe (111) layer on a CdTe template, fabricated by depositing it on a GaAs (111)A substrate, instead of BaF$_2$ which has been conventionally used as a substrate. By optimizing temperatures for…

Materials Science · Physics 2016-09-21 Ryo Ishikawa , Tomonari Yamaguchi , Yusuke Ohtaki , Ryota Akiyama , Shinji Kuroda

We demonstrate high-quality epitaxial germanium (Ge) films on a metallic silicide, Fe3Si, grown directly on a Ge(111) substrate. Using molecular beam epitaxy techniques, we can obtain an artificially controlled arrangement of silicon (Si)…

Materials Science · Physics 2012-10-04 S. Yamada , K. Tanikawa , M. Miyao , K. Hamaya

We consider a gradient flow modeling the epitaxial growth of thin films with slope selection. The surface height profile satisfies a nonlinear diffusion equation with biharmonic dissipation. We establish optimal local and global…

Analysis of PDEs · Mathematics 2016-06-21 Dong Li , Zhonghua Qiao , Tao Tang
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