论文标题
Kagome晶格上的偶极伊斯林铁磁铁的相图
Phase diagram of the dipolar Ising ferromagnet on a kagome lattice
论文作者
论文摘要
我们研究了二维偶极伊斯林铁磁铁在kagome晶格上具有特定比率和偶性常数的特定比率的场 - 温度相图，$δ= 1 $。使用随机截止（SCO）$ O（N）$ Monte Carlo方法，我们计算了条纹和气泡相以及其他热力学量的顺序参数。我们在低场上发现了两种条纹阶段，其中分支的排列在附近的条带框架相邻，而在高场处的两个气泡相会变化，其中三旋域（气泡）形成了常规的三角形晶格，但三角形的晶格但三角形的三角形阵列在kagome lattice上发生了变化。我们还发现，随着场的增加，条纹和气泡相之间以及两个气泡相之间存在一个无序相。我们讨论了这些阶段和相变特征的细节。
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 (SCO) $O(N)$ 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 a kagome lattice. We also find that with increasing the field, there exist a disordered phase 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.
