中国物理B ›› 2015, Vol. 24 ›› Issue (5): 57504-057504.doi: 10.1088/1674-1056/24/5/057504

所属专题: TOPICAL REVIEW — Magnetism, magnetic materials, and interdisciplinary research

• SPECIAL TOPIC --- Non-equilibrium phenomena in soft matters • 上一篇    下一篇

High frequency magnetic properties of ferromagnetic thin films and magnetization dynamics of coherent precession

蒋长军a b, 范小龙a b, 薛德胜a b   

  1. a Key Lab for Magnetism and Magnetic Materials of the Ministry Education, Lanzhou University, Lanzhou 730000, China;
    b School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
  • 收稿日期:2015-01-15 出版日期:2015-05-05 发布日期:2015-05-05
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2012CB933101), the National Natural Science Foundation of China (Grant Nos. 11034004 and 51371093), the Program for Changjiang Scholars and Innovative Research Team in University, China (Grant No. IRT1251), and the Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20130211130003).

High frequency magnetic properties of ferromagnetic thin films and magnetization dynamics of coherent precession

Jiang Chang-Jun (蒋长军)a b, Fan Xiao-Long (范小龙)a b, Xue De-Sheng (薛德胜)a b   

  1. a Key Lab for Magnetism and Magnetic Materials of the Ministry Education, Lanzhou University, Lanzhou 730000, China;
    b School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
  • Received:2015-01-15 Online:2015-05-05 Published:2015-05-05
  • Contact: Xue De-Sheng E-mail:xueds@lzu.edu.cn
  • About author:75.78.-n; 75.40.Gb; 76.50.+g; 75.70.-i
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2012CB933101), the National Natural Science Foundation of China (Grant Nos. 11034004 and 51371093), the Program for Changjiang Scholars and Innovative Research Team in University, China (Grant No. IRT1251), and the Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20130211130003).

摘要: We focus on the ferromagnetic thin films and review progress in understanding the magnetization dynamic of coherent precession, its application in seeking better high frequency magnetic properties for magnetic materials at GHz frequency, as well as new approaches to these materials' characterization. High frequency magnetic properties of magnetic materials determined by the magnetization dynamics of coherent precession are described by the Landau–Lifshitz–Gilbert equation. However, the complexity of the equation results in a lack of analytically universal information between the high frequency magnetic properties and the magnetization dynamics of coherent precession. Consequently, searching for magnetic materials with higher permeability at higher working frequency is still done case by case.

关键词: magnetization dynamics, permeability, resonance frequency, thin films

Abstract: We focus on the ferromagnetic thin films and review progress in understanding the magnetization dynamic of coherent precession, its application in seeking better high frequency magnetic properties for magnetic materials at GHz frequency, as well as new approaches to these materials' characterization. High frequency magnetic properties of magnetic materials determined by the magnetization dynamics of coherent precession are described by the Landau–Lifshitz–Gilbert equation. However, the complexity of the equation results in a lack of analytically universal information between the high frequency magnetic properties and the magnetization dynamics of coherent precession. Consequently, searching for magnetic materials with higher permeability at higher working frequency is still done case by case.

Key words: magnetization dynamics, permeability, resonance frequency, thin films

中图分类号:  (Magnetization dynamics)

  • 75.78.-n
75.40.Gb (Dynamic properties?) 76.50.+g (Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance) 75.70.-i (Magnetic properties of thin films, surfaces, and interfaces)