Field-dependent phase diagram of the structural pattern in a ferrofluid film under perpendicular magnetic field

Chin Yih Hong*, Chih Hao Lin, Chun Hui Chen, Y. P. Chiu, S. Y. Yang, H. E. Horng, H. C. Yang

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

18 引文 斯高帕斯(Scopus)

摘要

Influences of both the magnetic field strength H and the sweep rate dH/dt on the structural pattern evolution in a magnetic fluid film under perpendicular fields are systematically investigated. When the magnetic field is increased at a given rate, the structure evolves from a monodispersed state to a disordered one, then to the first-level ordered hexagonal structure, and finally to the second-level ordered structure through a transition state. With a higher dH/dt, the range of the applied magnetic field corresponding to the first-level ordered structure is widened and the field Hs, at which the transition occurs becomes higher. An empirical power law Hs ∞ (dH/dt) 0.4 was found. A phase diagram for the magnetic fluid film in the H-dH/dt plane is presented.

原文英語
頁(從 - 到)1881-1883
頁數3
期刊Journal of Magnetism and Magnetic Materials
226-230
發行號PART II
DOIs
出版狀態已發佈 - 2001
對外發佈

ASJC Scopus subject areas

  • 電子、光磁材料
  • 凝聚態物理學

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