一维周期能量景观中磁粒子相互作用链的动力学

IF 0.48 Q4 Physics and Astronomy

Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-07-16 DOI:10.1134/S1062873825711742

M. N. Kourov, A. E. Samoilova, A. V. Straube

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引用次数: 0

摘要

我们探索一维顺磁胶体粒子链在周期势中的动力学。该模型解释了一个恒定的外力，以及磁偶极吸引和粒子之间的硬核排斥相互作用。数值模拟揭示了移动扭结的出现-沿链传播的链缺陷。我们证明扭结出现在临界力阈值之外，并确定了不同动态模式（如钉住扭结、运行扭结、群集扭结和链漂移）对应的参数制度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Dynamics of a Chain of Interacting Magnetic Particles in a One-Dimensional Periodic Energy Landscape

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Dynamics of a Chain of Interacting Magnetic Particles in a One-Dimensional Periodic Energy Landscape

We explore the dynamics of a one-dimensional chain of paramagnetic colloidal particles in a periodic potential. The model accounts for a constant external force, along with magnetic dipolar attraction and hard-core repulsive interactions between particles. Numerical simulations reveal the emergence of a traveling kink – a chain defect propagating along the chain. We show that the kink emerges beyond a critical force threshold and identify parameter regimes corresponding to distinct dynamic modes such as a pinned kink, a running kink, a cluster kink, and chain drift.

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来源期刊

Bulletin of the Russian Academy of Sciences: Physics Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.90

自引率

0.00%

发文量

251

期刊介绍： Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.