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

Experimental persistence probability for fluctuating steps.

D B Dougherty1, I Lyubinetsky, E D Williams

  • 1Materials Research Science and Engineering Center, Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA.

Physical Review Letters
|September 13, 2002
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

Uptake and experience of professional interpreting services in primary care in a South Asian population: a national cross-sectional study.

BMC primary care·2024
Same author

Corneal biomechanical properties in myopic and emmetropic children.

European review for medical and pharmacological sciences·2023
Same author

A 3D high resolution MRI method for the visualization of cardiac fibro-fatty infiltrations.

Scientific reports·2021
Same author

Cancer-associated fibroblasts of the prostate promote a compliant and more invasive phenotype in benign prostate epithelial cells.

Materials today. Bio·2020
Same author

Vedolizumab as a rescue therapy for patients with medically refractory Crohn's disease.

Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland·2018
Same author

p49/STRAP, a Serum Response Factor Binding Protein (SRFBP1), Is Involved in the Redistribution of Cytoskeletal F-Actin Proteins during Glucose Deprivation.

The journal of nutrition, health & aging·2017
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

Researchers studied step fluctuations on a silicon-aluminum surface using scanning tunneling microscopy (STM). The step persistence showed power-law decay, consistent with attachment-detachment limited kinetics.

Area of Science:

  • Surface science
  • Materials science
  • Condensed matter physics

Background:

  • Understanding atomic step dynamics is crucial for crystal growth and surface properties.
  • The Si(111)-(sqrt[3]xsqrt[3])R30 degrees -Al surface exhibits complex fluctuating step behavior.

Purpose of the Study:

  • To investigate the persistence behavior of fluctuating steps on the Si(111)-(sqrt[3]xsqrt[3])R30 degrees -Al surface.
  • To determine the kinetics governing step motion at elevated temperatures.

Main Methods:

  • Utilized time-dependent scanning tunneling microscopy (STM) to capture step dynamics.
  • Analyzed persistence probability using standard and fixed-reference position definitions.
  • Performed numerical simulations of the Langevin equation to model step motion.

Related Experiment Videos

Main Results:

  • Observed power-law decay in persistence probability with an exponent of theta=0.77+/-0.03 under the standard definition.
  • Found exponential decay when analyzing persistence relative to a fixed reference position.
  • Experimental results were corroborated by numerical Langevin equation simulations.

Conclusions:

  • The observed power-law decay aligns with theoretical predictions for attachment-detachment limited step kinetics.
  • The choice of reference frame significantly impacts the observed persistence behavior.
  • The study provides insights into the fundamental mechanisms of step dynamics on semiconductor surfaces.