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

Adaptive crystal structures: CuAu and NiPt.

M Sanati1, L G Wang, Alex Zunger

  • 1National Renewable Energy Laboratory, Golden, Colorado 80401, USA.

Physical Review Letters
|February 7, 2003
PubMed
Summary

Researchers found a wide range of stable, ordered adaptive structures in gold-rich copper-gold (Cu-Au) and platinum-rich nickel-platinum (Ni-Pt) alloys. These structures are composed of repeating units and are explained by anisotropic strain energy.

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

Diverse Properties of Electron Forbush Decreases Revealed by the Dark Matter Particle Explorer.

Physical review letters·2026
Same author

Alloying multiple halide perovskites on the same sublattice in search of stability and target band gaps.

Materials horizons·2025
Same author

Explainable PET-based intratumoral and peritumoral machine learning model for predicting visceral pleural invasion in clinical-stage IA non-small cell lung cancer: A two-center study.

Clinical radiology·2025
Same author

Short communication: Genomic prediction based on unbiased estimation of the genomic relationship matrix in pigs.

Animal : an international journal of animal bioscience·2025
Same author

Imputation strategies for low-coverage whole-genome sequencing data and their effects on genomic prediction and genome-wide association studies in pigs.

Animal : an international journal of animal bioscience·2024
Same author

Deciphering the <i>in situ</i> phonon evolution of potassium sodium niobate under varying temperature and electric fields.

Physical chemistry chemical physics : PCCP·2024

Area of Science:

  • Materials Science
  • Solid-State Physics
  • Computational Materials Science

Background:

  • Alloys often exhibit complex phase diagrams and structural variations.
  • Understanding ordered structures in alloys is crucial for predicting material properties.
  • Previous studies have focused on specific ordered phases rather than a continuum.

Purpose of the Study:

  • To discover and characterize a quasicontinuum of stable, ordered adaptive structures in specific alloy systems.
  • To explain the underlying physical principles governing this structural adaptivity.
  • To develop a computational approach for identifying such structures.

Main Methods:

  • Utilized a cluster expansion method to parametrize energies of face-centered cubic (fcc) configurations.
  • Performed first-principles calculations to obtain total energies of reference structures.
  • Searched a large number of fcc configurations (approximately 3x10^6) for stable ordered structures.

Main Results:

  • Identified a composition range in Au-rich Cu1-xAux and Pt-rich Ni1-xPtx alloys exhibiting a quasicontinuum of stable, ordered adaptive structures.
  • These adaptive structures are composed of (001) repeat units of simple structural motifs.
  • The observed structural adaptivity is attributed to anisotropic, long-range strain energy.

Conclusions:

  • The discovery of a quasicontinuum of adaptive structures challenges traditional views of alloy phase stability.
  • Anisotropic strain energy is a key factor driving the formation of these ordered adaptive structures.
  • The computational approach provides a powerful tool for exploring complex structural landscapes in alloys.

Related Experiment Videos