Intrinsic subpicosecond magnetization reversal driven by femtosecond laser pulses in GdFeCo amorphous films

被引：3
|
作者：
Li, Shufa [1 ]
Gao, Ruixin [1 ]
Cheng, Chuyuan [1 ]
Yan, Yong [1 ]
Lai, Tianshu [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 24期
基金：
中国国家自然科学基金;
关键词：
MAGNETOOPTIC RECORDING MATERIALS; DIRECT OVERWRITE CAPABILITY;
D O I：
10.1063/1.4846299
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Ultrafast magnetization dynamics in GdFeCo films triggered by femtosecond laser pulses with and without an external field applied is studied experimentally for different excitation fluence. It is found that subpicosecond magnetization reversal occurs simultaneously in the ultrafast dynamics of both saturation and remnant magnetization states and almost identical within 13 ps, whereas relatively slow magnetization reversal across compensation point appears only in the dynamics of saturation magnetization state. It shows the subpicosecond magnetization reversal is external field independent, and originates from intrinsic magnetic evolution in ferrimagnetic system. The intrinsic subpicosecond reversal is qualitatively explained by linear reversal. (C) 2013 AIP Publishing LLC.
引用
收藏
页数：5
相关论文
共 50 条
  • [11] Structural Anisotropy of Amorphous Silicon Films Modified by Femtosecond Laser Pulses
    Shuleiko, D. V.
    Kashaev, F. V.
    Potemkin, F. V.
    Zabotnov, S. V.
    Zoteev, A. V.
    Presnov, D. E.
    Parkhomenko, I. N.
    Romanov, I. A.
    [J]. OPTICS AND SPECTROSCOPY, 2018, 124 (06) : 801 - 807
  • [12] Structural Anisotropy of Amorphous Silicon Films Modified by Femtosecond Laser Pulses
    D. V. Shuleiko
    F. V. Kashaev
    F. V. Potemkin
    S. V. Zabotnov
    A. V. Zoteev
    D. E. Presnov
    I. N. Parkhomenko
    I. A. Romanov
    [J]. Optics and Spectroscopy, 2018, 124 : 801 - 807
  • [13] Ultrafast double magnetization switching in GdFeCo with two picosecond-delayed femtosecond pump pulses
    Atxitia, U.
    Ostler, T. A.
    [J]. APPLIED PHYSICS LETTERS, 2018, 113 (06)
  • [14] Magnetization dynamics induced by femtosecond laser pulses
    Kimel, A.V.
    Zvezdin, A.K.
    [J]. Fizika Nizkikh Temperatur, 2015, 41 (09): : 878 - 886
  • [15] The Study of the Delay Kerr Loops Induced by Femtosecond Laser Pulses in GdFeCo Film
    Xu, Chudong
    Xiong, Wanjie
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2013, 82 (08)
  • [16] Field-dependent ultrafast dynamics and mechanism of magnetization reversal across ferrimagnetic compensation points in GdFeCo amorphous alloy films
    Chen, Zhifeng
    Gao, Ruixin
    Wang, Zixin
    Xu, Chudong
    Chen, Daxin
    Laia, Tianshu
    [J]. JOURNAL OF APPLIED PHYSICS, 2010, 108 (02)
  • [17] Modification of magnetization orientation in Pt/Co/Pt ultrathin films by femtosecond laser pulses
    Kisielewski, J.
    Kurant, Z.
    Sveklo, I.
    Tekielak, M.
    Dynowska, E.
    Jakubowski, M.
    Wawro, A.
    Maziewski, A.
    [J]. 8TH JOINT EUROPEAN MAGNETIC SYMPOSIA (JEMS2016), 2017, 903
  • [18] Ultrafast all-optical magnetization reversal in GdFeCo films around plasmonic nanostructures
    Kochergin, Vladimir
    Cherepov, Sergiy
    Schwartz, Robert N.
    Flanagan, Kevin
    Krivorotov, Ilya N.
    Kochergin, Evgeniy V.
    Wang, Kang L.
    [J]. PLASMONICS: METALLIC NANOSTRUCTURES AND THEIR OPTICAL PROPERTIES XI, 2013, 8809
  • [19] RE-TM antiferromagnetic coupling and laser induced ultrafast magnetization reversal dynamics in GdFeCo magneto-optical films
    Gao Rui-Xin
    Xu Zhen
    Chen Da-Xin
    Xu Chu-Dong
    Chen Zhi-Feng
    Liu Xiao-Dong
    Zhou Shi-Ming
    Lai Tian-Shu
    [J]. ACTA PHYSICA SINICA, 2009, 58 (01) : 580 - 584
  • [20] Magnetization reversal processes in amorphous CoFeB thin films
    Harres, A.
    Mallmann, T.A.
    Gamino, M.
    Correa, M.A.
    Viegas, A.D.C.
    da Silva, R.B.
    [J]. Journal of Magnetism and Magnetic Materials, 2022, 552
12345