Imaging the real shape of nanoclusters in scanning force microscopy

نویسندگان

  • Olli H. Pakarinen
  • Clemens Barth
  • Adam S. Foster
  • Claude R. Henry
چکیده

A quantitative comparison between experiment and theory is given for the constant height mode imaging of metal nanoclusters in dynamic scanning force microscopy. We explain the fundamental mechanisms in the contrast formation with the help of the system Pd/MgO 001 . The comparison shows that the shape and size of nanoclusters are precisely imaged due to the sharpness of the tip’s last nanometer. This quantitative comparison proves our previously proposed model for the contrast formation. © 2008 American Institute of Physics. DOI: 10.1063/1.2841700

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

Charge storage in Co nanoclusters embedded in SiO2 by scanning force microscopy

Scanning force microscopy was used to study localized charge deposition and subsequent transport in Co nanoclusters embedded in SiO2 deposited on an n-type Si substrate. Co nanoclusters were charged by applying a bias voltage pulse between tip and sample, and electrostatic force microscopy was used to image charged areas, to determine quantitatively the amount of stored charge, and to character...

متن کامل

High-resolution scanning force microscopy of gold nanoclusters on the KBr (001) surface

Rights: © 2006 American Physical Society (APS). This is the accepted version of the following article: Pakarinen, O. H. & Barth, C. & Foster, A. S. & Nieminen, Risto M. & Henry, C. R. 2006. High-resolution scanning force microscopy of gold nanoclusters on the KBr (001) surface. Physical Review B. Volume 73, Issue 23. 235428/1-10. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.73.235428, whi...

متن کامل

Fe Nanoclusters on the Ge(001) Surface Studied by Scanning Tunneling Microscopy, Density Functional Theory Calculations and X-Ray Magnetic Circular Dichroism

The growth of Fe nanoclusters on the Ge(001) surface has been studied using lowtemperature scanning tunnelling microscopy (STM) and density functional theory (DFT) calculations. STM results indicate that Fe nucleates on the Ge(001) surface, forming wellordered nanoclusters of uniform size. Depending on the preparation conditions, two types of nanoclusters were observed having either four or six...

متن کامل

Size and Shape of Nanoclusters: Single-Shot Imaging Approach

A method of single-shot imaging via aberration-corrected scanning transmission electron microscopy equipped with high angle annular dark-field detector (STEM-HAADF) has been applied to size-selected gold model catalysts (Au(25) and Au(39) ) on hydroxyapatite. Through quantitative intensity analysis, the size, in terms of number of atoms as well as 3D shape of the clusters are obtained.

متن کامل

Shape Reconstruction Based on a New Blurring Model at the Micro/Nanometer Scale

Real-time observation of three-dimensional (3D) information has great significance in nanotechnology. However, normal nanometer scale observation techniques, including transmission electron microscopy (TEM), and scanning probe microscopy (SPM), have some problems to obtain 3D information because they lack non-destructive, intuitive, and fast imaging ability under normal conditions, and optical ...

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 2008