Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Unexpected dynamics for self-interstitial clusters in silicon.

S K Estreicher1, M Gharaibeh, P A Fedders

  • 1Department of Physics, Texas Tech University, Lubbock, Texas 79409-1051, USA.

Physical Review Letters
|February 15, 2001
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

First-principles study of electronic structure and magnetic properties of L1<sub>0</sub>-ordered FeNi, FePd, and FePt alloys.

Heliyon·2022
Same author

Genetic relatedness, antibiogram and virulence factors of Staphylococcus aureus isolated from bovine mastitis and related human contacts.

Polish journal of veterinary sciences·2020
Same author

Mechanisms behind the enhancement of thermal properties of graphene nanofluids.

Nanoscale·2018
Same author

Temperature dependence of phonon-defect interactions: phonon scattering vs. phonon trapping.

Scientific reports·2016
Same author

An integrative review of pursing policy and political competence.

International nursing review·2016
Same author

Economic Evaluation of Paclitaxel Albumin, Paclitaxel, and Docetaxel as a Second Line Treatment for Metastatic Breast Cancer.

Value in health : the journal of the International Society for Pharmacoeconomics and Outcomes Research·2016

Self-interstitial clusters in silicon, specifically I2 and I3 (Ia3), exhibit rapid diffusion by sharing a single bond-centered site. Larger clusters like I4 and smaller ones like I1 show no significant diffusion.

Area of Science:

  • Materials Science
  • Solid-State Physics
  • Computational Chemistry

Background:

  • Understanding defects in silicon is crucial for semiconductor technology.
  • Self-interstitial clusters are point defects that can impact material properties.

Purpose of the Study:

  • To investigate the diffusion behavior of self-interstitial clusters in silicon.
  • To determine the structural and dynamic properties of these clusters using computational methods.

Main Methods:

  • Ab initio molecular-dynamics simulations were employed.
  • Simulations focused on clusters of varying sizes (I1, I2, I3, I4).
  • Analysis of cluster diffusion and site-sharing mechanisms.

Main Results:

Related Experiment Videos

  • I2 and the stable I3 (Ia3) clusters exhibit extremely fast diffusion.
  • These fast-diffusing clusters share a single bond-centered (BC) site.
  • A metastable I3 (Ib3) cluster exchanges sites internally without changing its central position.
  • I1 and I4 clusters showed no diffusion within the simulation timescale.

    • Conclusions:

    • The diffusion dynamics of self-interstitial clusters are highly dependent on their size and structure.
    • Sharing a single bond-centered site facilitates rapid diffusion in small interstitial clusters.
    • Specific cluster configurations, like Ia3, are mobile, while others, like I1 and I4, are immobile at these temperatures.