摘要翻译:
铁、钴、镍纳米粒子在气相中生长,由于铁磁(或超顺磁)粒子之间的长程偶极相互作用,形成链状或手环状排列。我们利用分子动力学模拟研究了低密度磁偶极纳米粒子的动力学和热力学,并分析了温度和外加磁场对二维和三维体系的影响。所得到的相图可以用简单的能量变元来理解。
---
英文标题:
《Molecular dynamics simulations of the dipolar-induced formation of
magnetic nanochains and nanorings》
---
作者:
A. Hucht, S. Buschmann and P. Entel
---
最新提交年份:
2007
---
分类信息:
一级分类:Physics 物理学
二级分类:Materials Science 材料科学
分类描述:Techniques, synthesis, characterization, structure. Structural phase transitions, mechanical properties, phonons. Defects, adsorbates, interfaces
技术,合成,表征,结构。结构相变,力学性质,声子。缺陷,吸附质,界面
--
一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
--
---
英文摘要:
Iron, cobalt and nickel nanoparticles, grown in the gas phase, are known to arrange in chains and bracelet-like rings due to the long-range dipolar interaction between the ferromagnetic (or super-paramagnetic) particles. We investigate the dynamics and thermodynamics of such magnetic dipolar nanoparticles for low densities using molecular dynamics simulations and analyze the influence of temperature and external magnetic fields on two- and three-dimensional systems. The obtained phase diagrams can be understood by using simple energetic arguments.
---
PDF链接:
https://arxiv.org/pdf/706.392