Phase diagram of the dipolar Ising ferromagnet on a kagome lattice

Hisato Komatsu, Yoshihiko Nonomura, Masamichi Nishino

研究成果: ジャーナルへの寄稿学術誌査読

3 被引用数 (Scopus)

抄録

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.

本文言語英語
論文番号014402
ジャーナルPhysical Review B
106
1
DOI
出版ステータス出版済み - 7月 1 2022

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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