Neel-type antiferromagnetic skyrmionic crystals on two-dimensional square lattices investigated with optimized quantum Monte Carlo method
文献类型：期刊论文
| 作者 | Liu, Zhaosen; Yang, Hongxin |
| 刊名 | PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
 |
| 出版日期 | 2022 |
| 卷号 | 135 |
| 关键词 | STABILITY |
| 英文摘要 | The formations of individual antiferromagnetic (AF) skyrmions and AF skyrmionic lattices on two-dimensional (2D) magnets with square crystal structure are debatable in recent years, for only an isolated skyrmion can be generated in such systems if classical Monte Carlo (CMC) method is employed. For the sake, we apply here an optimized quantum Monte Carlo approach to a 2D square magnet where the AF Heisenberg exchange (HE) and Dzyaloshinskii-Moriya (DM) interactions co-exist. Consequently, the computing program converges to the equilibrium states with appreciable computational speed, and the results obtained in the last one iteration are able to accurately produce well symmetric and periodic AF skyrmionic lattices (SLs) at elevated temperatures when a considerably strong external magnetic field is exerted perpendicular to the 2D monolayer. Moreover, each of these AF SLs can be decomposed into two almost identical ferromagnetic (FM) SLs, and the distribution of topological charge density also forms symmetric lattice with the same periodicity as the AF SL, dividing the AF SL into several areas of distinct spin configurations. The reasons why the OQMC approach can work beyond CMC method are explained in the Discussion Section. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21252]  |
| 专题 | 2021专题_期刊论文 2022专题_期刊论文 |
| 作者单位 | Liu, ZS (corresponding author), Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang 421002, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Liu, Zhaosen,Yang, Hongxin. Neel-type antiferromagnetic skyrmionic crystals on two-dimensional square lattices investigated with optimized quantum Monte Carlo method[J]. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES,2022,135. |
| APA | Liu, Zhaosen,&Yang, Hongxin.(2022).Neel-type antiferromagnetic skyrmionic crystals on two-dimensional square lattices investigated with optimized quantum Monte Carlo method.PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES,135. |
| MLA | Liu, Zhaosen,et al."Neel-type antiferromagnetic skyrmionic crystals on two-dimensional square lattices investigated with optimized quantum Monte Carlo method".PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES 135(2022). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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