Equilibrium states and the magnetization reversal of a linear chain of magnetic moments

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• 作者：A. M. Shutyy ; D. I. Sementsov
• 关键词：chain of magnetic dipoles ; magnetization reversal of system ; orientation of domains ; transition to the homogeneous state
• 刊名：The Physics of Metals and Metallography
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：117
• 期：2
• 页码：122-129
• 全文大小：650 KB
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• 作者单位：A. M. Shutyy (1)
  D. I. Sementsov (1)
  
  1. Ul’yanovsk State University, ul. L. Tolstogo 42, Ul’yanovsk, 432970, Russia
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Metallic Materials
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1555-6190

文摘

The equilibrium states and specific features of the magnetization reversal of a linear chain of magnetic moments coupled by dipole–dipole and exchange interactions have been investigated based on computer simulation. It has been revealed that, depending on the strength of the exchange interaction, the boundary between the oppositely oriented regions can have both zero and nonzero total magnetic moment. The presence of an easy-axis uniaxial anisotropy makes it possible to obtain stationary states with small domains (up to ones consisting of a single dipole). The processes of relaxation of the chain from a multidomain toward a homogeneous state have been examined.