TITLE

Kinetics-limited surface structures at the nanoscale

AUTHOR(S)
Huang, Hanchen; Woo, C. H.; Wei, H. L.; Zhang, X. X.
PUB. DATE
February 2003
SOURCE
Applied Physics Letters;2/24/2003, Vol. 82 Issue 8, p1272
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This letter presents the evolution of kinetics-limited nanoscale structures during copper thin film deposition. We first calculate the three-dimensional Ehrlich-Schwoebel (3D ES) kinetic barrier of copper using the molecular dynamics/statics method. Based on this calculation, the dimension of {111} facets, under typical sputtering deposition conditions, is estimated to be 700 nm if the 3D ES barrier is effective, in contrast to 70 μm without it. Accompanying the calculations, we deposit copper <111> columns using the magnetron sputtering technique, and characterize their structures using scanning electron microscopy and x-ray diffraction techniques. The observed facets of pure copper films are on the order of 200 nm in dimension, confirming that surface structure is controlled by the 3D ES kinetic barrier. When indium is introduced as surfactant, the facet dimension increases, leading to conformal films; this is attributed to reduction of the 3D ES barrier.
ACCESSION #
9140734

 

Related Articles

  • Sequential multiplication of dislocation sources along a crack front revealed by high-voltage electron microscopy and tomography. Tanaka, Masaki; Sadamatsu, Sunao; Liu, Grace S.; Nakamura, Hiroto; Higashida, Kenji; Robertson, Ian M. // Journal of Materials Research;2/28/2011, Vol. 26 Issue 4, p508 

    The three-dimensional structure of crack tip dislocations in single crystal silicon was observed by combining high-voltage electron microscopy and tomography. It was revealed that dislocations cross-slipped proximal to the crack tip even in the initial stages of plastic deformation. The local...

  • Investigation of structures and properties of cyclic peptide nanotubes by experiment and molecular dynamics. Zhu, Jingchuan; Cheng, Jie; Liao, Zhouxiong; Lai, Zhonghong; Liu, Bo // Journal of Computer-Aided Molecular Design;Nov2008, Vol. 22 Issue 11, p773 

    In order to investigate the structures and properties of cyclic peptide nanotubes of cyclo[(- d-Phe- l-Ala) n = 3,4,5,6-], cyclo[(- d-Phe- l-Ala) n = 4-] was synthesized and self-assembled to nanotubes, and its structure and morphology of the nanotube were characterized by mass spectrometry...

  • Nucleation of chemical waves at defects: A mirror electron microscopy study of catalytic CO oxidation on Pt(110). Han Wei; Lilienkamp, G.; Imbihl, R. // Journal of Chemical Physics;7/14/2007, Vol. 127 Issue 2, p024703 

    Using mirror electron microscopy (MEM) as spatially resolving method the nucleation of chemical waves in catalytic CO oxidation on a Pt(110) surface was investigated in the 10-5 mbar range. The waves nucleated at an electrically insulating impurity of approximately 15 μm diameter (the...

  • Run rings around. Kritikou, Ekat // Nature Reviews Molecular Cell Biology;Nov2006, Vol. 7 Issue 11, p792 

    The author depicts the research of D. Tan and colleagues, to analyze the structural basis for unusual behavior and mechanism of kinesin-13s in depolymerizing microtubules. An overview of the observations using electron microscopy, the interactions between kinesins molecules in the formation of...

  • Origins of nanostructure in amorphous polymer coatings via matrix assisted pulsed laser evaporation. Shepard, Kimberly B.; Arnold, Craig B.; Priestley, Rodney D. // Applied Physics Letters;9/16/2013, Vol. 103 Issue 12, p123105 

    We investigate the nanostructure of sub-monolayer and monolayer amorphous polymer films deposited via Matrix Assisted Pulsed Laser Evaporation (MAPLE). The structure is quantified by analyzing the size distribution of polymer nanoglobules as a function of deposition parameters: time and polymer...

  • Atomistic modeling of nanoscale patterning of L12 order induced by ion irradiation. Jia Ye; Youhong Li; Averback, Robert; Jian-Min Zuo; Bellon, Pascal // Journal of Applied Physics;Sep2010, Vol. 108 Issue 5, p054302 

    Theoretical predictions indicate that ordered alloys can spontaneously develop a steady-state nanoscale microstructure when irradiated with energetic particles. This behavior derives from a dynamical competition between disordering in cascades and thermally activated reordering, which leads to...

  • Substrate-dependent wetting layer formation during GaN growth: Impact on the morphology of the films. Sidorenko, A.; Peisert, H.; Neumann, H.; Chassé, T. // Journal of Applied Physics;8/15/2007, Vol. 102 Issue 4, p044907 

    We have compared epitaxial growth of GaN films on [formula] and on (0001)-sapphire. Predeposited Ga layers were nitrided by ion beam assisted molecular beam epitaxy. Whereas on SiC the initially deposited Ga covers the substrate surface completely, on sapphire only Ga droplets are present. The...

  • Interfacial structure and defect analysis of nonpolar ZnO films grown on R-plane sapphire by molecular beam epitaxy. Vennéguès, P.; Chauveau, J. M.; Korytov, M.; Deparis, C.; Zuniga-Perez, J.; Morhain, C. // Journal of Applied Physics;Apr2008, Vol. 103 Issue 8, p083525 

    The interfacial relationship and the microstructure of nonpolar (11-20) ZnO films epitaxially grown on (1-102) R-plane sapphire by molecular beam epitaxy are investigated by transmission electron microscopy. The already-reported epitaxial relationships [1-100]ZnO∥[11-20]sapphire and...

  • Molecular beam epitaxy of thermodynamically metastable GaInAsSb alloys for medium IR-range photodetectors. Semenov, A. N.; Terent'ev, Ya. V.; Meltser, B. Ya.; Solov'ev, V. A.; Popova, T. V.; Nashchekin, A. V.; Andreev, I. A.; Kunitsyna, E. V.; Usikova, A. A.; Yakovlev, Yu. P.; Ivanov, S. V. // Semiconductors;May2010, Vol. 44 Issue 5, p672 

    The features of growth of GaInAsSb alloy with In content as high as 25 mol % lattice-matched to GaSb by molecular beam epitaxy are studied. These alloys are promising for use as the active region of photodetector structures of the mid-infrared range. The results of the study of these alloys by...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics