Devil’s Staircases” in Bulk-Immiscible Ultrathin Alloy Films

B. D. Krack, V. Ozoliņš, M. Asta, I. Daruka

Research output: Contribution to journalArticle

Abstract

Ground-state phase diagrams of ultrathin epitaxial alloy films are studied within the framework of a discrete lattice-model Hamiltonian incorporating competing elastic and chemical interactions. For bulk-immiscible alloy systems an infinite number of commensurate, long-period stripe-superstructure ground states are obtained as a function of chemical potential. The average periodicity of these stripe superstructures is found to be a nonmonotonic function of alloy composition, in contrast to the predictions of continuum theories for two-dimensional systems with competing interactions.

Original languageEnglish
Number of pages1
JournalPhysical Review Letters
Volume88
Issue number18
DOIs
Publication statusPublished - Jan 1 2002

Fingerprint

stairways
ground state
periodic variations
phase diagrams
interactions
continuums
predictions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Devil’s Staircases” in Bulk-Immiscible Ultrathin Alloy Films. / Krack, B. D.; Ozoliņš, V.; Asta, M.; Daruka, I.

In: Physical Review Letters, Vol. 88, No. 18, 01.01.2002.

Research output: Contribution to journalArticle

Krack, B. D. ; Ozoliņš, V. ; Asta, M. ; Daruka, I. / Devil’s Staircases” in Bulk-Immiscible Ultrathin Alloy Films. In: Physical Review Letters. 2002 ; Vol. 88, No. 18.
@article{92e8807cb9c84e4c98183321c414fd94,
title = "Devil’s Staircases” in Bulk-Immiscible Ultrathin Alloy Films",
abstract = "Ground-state phase diagrams of ultrathin epitaxial alloy films are studied within the framework of a discrete lattice-model Hamiltonian incorporating competing elastic and chemical interactions. For bulk-immiscible alloy systems an infinite number of commensurate, long-period stripe-superstructure ground states are obtained as a function of chemical potential. The average periodicity of these stripe superstructures is found to be a nonmonotonic function of alloy composition, in contrast to the predictions of continuum theories for two-dimensional systems with competing interactions.",
author = "Krack, {B. D.} and V. Ozoliņš and M. Asta and I. Daruka",
year = "2002",
month = "1",
day = "1",
doi = "10.1103/PhysRevLett.88.186101",
language = "English",
volume = "88",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "18",

}

TY - JOUR

T1 - Devil’s Staircases” in Bulk-Immiscible Ultrathin Alloy Films

AU - Krack, B. D.

AU - Ozoliņš, V.

AU - Asta, M.

AU - Daruka, I.

PY - 2002/1/1

Y1 - 2002/1/1

N2 - Ground-state phase diagrams of ultrathin epitaxial alloy films are studied within the framework of a discrete lattice-model Hamiltonian incorporating competing elastic and chemical interactions. For bulk-immiscible alloy systems an infinite number of commensurate, long-period stripe-superstructure ground states are obtained as a function of chemical potential. The average periodicity of these stripe superstructures is found to be a nonmonotonic function of alloy composition, in contrast to the predictions of continuum theories for two-dimensional systems with competing interactions.

AB - Ground-state phase diagrams of ultrathin epitaxial alloy films are studied within the framework of a discrete lattice-model Hamiltonian incorporating competing elastic and chemical interactions. For bulk-immiscible alloy systems an infinite number of commensurate, long-period stripe-superstructure ground states are obtained as a function of chemical potential. The average periodicity of these stripe superstructures is found to be a nonmonotonic function of alloy composition, in contrast to the predictions of continuum theories for two-dimensional systems with competing interactions.

UR - http://www.scopus.com/inward/record.url?scp=85038296342&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85038296342&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.88.186101

DO - 10.1103/PhysRevLett.88.186101

M3 - Article

AN - SCOPUS:85038296342

VL - 88

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 18

ER -