Phase diagram of the dipolar Ising ferromagnet on a kagome lattice

Hisato Komatsu, Yoshihiko Nonomura, Masamichi Nishino

Research output: Contribution to journalArticlepeer-review

Abstract

We study the field-temperature phase diagram of the two-dimensional dipolar Ising ferromagnet on a kagome lattice with a specific ratio between the exchange and dipolar constants, δ=1. Using the stochastic cutoff O(N) Monte Carlo method, we calculated order parameters for stripe and bubble phases and other thermodynamical quantities. We find two kinds of stripe phases at low fields, where the arrangement of the branch spins neighboring the stripe frame varies, and two bubble phases at high fields, in which three-spin domains (bubbles) form a regular triangular lattice but the triangular array of bubbles changes on the kagome lattice. We also find that with increasing field, a disordered phase exists between the stripe and bubble phases and between the two bubble phases. We discuss the details of the features of these phases and phase transitions.

Original languageEnglish
Article number014402
JournalPhysical Review B
Volume106
Issue number1
DOIs
Publication statusPublished - Jul 1 2022
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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