Role of codeposited impurities during growth . I . Explaining distinctive experimental morphology on Cu ( 0 0 1 )

نویسندگان

  • Rajesh Sathiyanarayanan
  • Alberto Pimpinelli
  • T. L. Einstein
چکیده

Ajmi BH. Hamouda,1,2,* Rajesh Sathiyanarayanan,1,3,†,‡ Alberto Pimpinelli,1,4,§ and T. L. Einstein1,‖ 1Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA 2Physics Department, Sciences Faculty of University of Monastir, 5019 Monastir, Tunisia 3Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA 4Scientific Attaché, French Embassy in the US, Consulate General of France, Houston, Texas 77056, USA (Received 31 July 2010; revised manuscript received 16 September 2010; published 24 January 2011)

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Submonolayer growth with decorated island edges

We study the dynamics of island nucleation in the presence of adsorbates using kinetic Monte Carlo simulations of a two-species growth model. Adatoms (A-atoms) and impurities (B-atoms) are codeposited, diffuse and aggregate subject to attractive AAand AB-interactions. Activated exchange of adatoms with impurities is identified as the key process to maintain decoration of island edges by impurit...

متن کامل

Cu 2 O ( 1 1 0 ) formation on Co 3 O 4 ( 1 1 0 ) induced by copper impurity segregation

The surface crystal structure of the Co3O4(1 1 0) spinel was characterized by low energy electron diffraction (LEED), X-ray photoelectron spectroscopy (XPS), and Auger electron spectroscopy (AES). Well-defi ned LEED diffraction patterns showed an unreconstructed Co3O4(1 1 0) surface in Type A termination, and XPS and Auger indicated the surface to be stoichiometric with octahedral and tetrahedr...

متن کامل

Effect of a Cu–Se secondary phase on the epitaxial growth of CuInSe2 on (1 0 0) GaAs

The effect of a secondary copper selenide phase that appears during epitaxial growth of CuInSe2 (CIS) films on (1 0 0) GaAs substrates was investigated. CIS films with different copper to indium molar ratios were deposited on (1 0 0) GaAs substrates at 360 1C by migration-enhanced epitaxy. Films grown under In-rich conditions were polycrystalline, whereas films grown with a Cu-rich composition ...

متن کامل

In situ UHV-TEM investigation of the kinetics of initial stages of oxidation on the roughened Cu(1 1 0) surface

The initial stages of oxidation on roughened Cu(1 1 0) surface were explored by an in situ ultra-high vacuum transmission electron microscope (UHV-TEM). The dynamic observation of the nucleation and growth of Cu oxide islands shows a highly enhanced nucleation rate on the roughened Cu(1 1 0) surface. The kinetic data obtained from the initial stages of the oxidation indicate that oxygen surface...

متن کامل

States of local moment induced by nonmagnetic impurities in cuprate superconductors.

By using a model Hamiltonian with d-wave superconductivity and competing antiferromagnetic (AF) orders, the local staggered magnetization distribution due to nonmagnetic impurities in cuprate superconductors is investigated. We show that the net moment induced by a single impurity corresponds to a local spin with S(z)=0 or 1/2 depending on the strength of the AF interaction U and the impurity s...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011