Photoinduced Nonthermal Reduction of the Coercive Field in FePt and FePt0.84Rh0.16 Epitaxial Thin Films in the L10 Phase

被引：0
|
作者：
Petrov, A. V. [1 ]
Nikitin, S. I. [1 ]
Tagirov, L. R. [1 ,2 ]
Kamzin, A. S. [3 ]
Yusupov, R. V. [1 ]
机构：
[1] Kazan Fed Univ, Kazan 420008, Russia
[2] Russian Acad Sci, FRC Kazan Sci Ctr, Zavoisky Phys Tech Inst, Kazan 420029, Russia
[3] Ioffe Inst, St Petersburg 194021, Russia
来源：
JETP LETTERS | 2023年 / 118卷 / 02期
关键词：
MAGNETIC-PROPERTIES;
D O I：
10.1134/S0021364023601914
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The time-resolved magneto-optical Kerr effect in epitaxial thin films of the FePt compound and the FePt0.84Rh0.16 solid solution with the perpendicular magnetic anisotropy on MgO (001) substrates has been studied. The evolution of hysteresis loops at short (100 fs-1 ns) and long (1-20 ms) time scales after the excitation by a femtosecond light pulse has been studied. Long-lived nonthermal reduction of the coercive field has been detected. The coercive field is recovered in several milliseconds. It has been proposed to explain the observed phenomenon by the excitation of high-Q-factor acoustic resonances in the substrate/film system and to the strong magnetoelastic interaction in FePt and FePt0.84Rh0.16 films.
引用
收藏
页码：117 / 122
页数：6
相关论文
共 50 条
  • [31] Promotion of L10 ordered phase transformation by the Ag top layer on FePt thin films
    Zhao, ZL
    Ding, J
    Inaba, K
    Chen, JS
    Wang, JP
    APPLIED PHYSICS LETTERS, 2003, 83 (11) : 2196 - 2198
  • [32] The effect of Ag and Cu underlayer on the L10 ordering FePt thin films
    Xu, XH
    Wu, HS
    Wang, F
    Li, XL
    APPLIED SURFACE SCIENCE, 2004, 233 (1-4) : 1 - 4
  • [33] Interface reaction-accelerated L10 ordering of FePt thin films
    Li, Xiaohong
    Liu, Baoting
    Li, Feng
    Sun, Hongyu
    Li, Wei
    Yang, Cuizhuo
    Zhang, Xiangyi
    SCRIPTA MATERIALIA, 2007, 57 (02) : 77 - 80
  • [34] Irreversible magnetization process and switching mechanism in L10 FePt thin films
    Lisfi, A.
    Pokharel, S.
    Akioya, O.
    Alqhtany, N. H.
    Wuttig, M.
    AIP ADVANCES, 2017, 7 (05):
  • [35] Influences of the substrate strain on microstructures of L10 FePt-X thin films by using phase field simulation
    Ren, Yifan
    Liu, Liwang
    Liang, Linyun
    Zheng, Qi
    Xu, Yechuan
    Zhang, Luran
    Rao, Wei-Feng
    Materials Today Communications, 2022, 32
  • [36] Effects of temperature on intergranular exchange coupling in L10 FePt thin films
    Huang, Efrem Y.
    Kryder, Mark H.
    JOURNAL OF APPLIED PHYSICS, 2014, 115 (21)
  • [37] Influences of the substrate strain on microstructures of L10 FePt-X thin films by using phase field simulation
    Ren, Yifan
    Liu, Liwang
    Liang, Linyun
    Zheng, Qi
    Xu, Yechuan
    Zhang, Luran
    Rao, Wei-Feng
    MATERIALS TODAY COMMUNICATIONS, 2022, 32
  • [38] L10 ordered epitaxial FePt (001) thin films on TiN/Si (100) by pulsed laser deposition
    Trichy, G. R.
    Narayan, J.
    Zhou, H.
    APPLIED PHYSICS LETTERS, 2006, 89 (13)
  • [39] Epitaxial growth mechanism of L10 FePt thin films on Pt/Cr bilayer with amorphous glass substrate
    Hsu, J.-H. (jhhsu@phys.ntu.edu.tw), 1600, American Institute of Physics Inc. (98):
  • [40] Studying the ferromagnetic–paramagnetic phase transition in thin films of L10 FePt1–xRhx
    Valiullin A.A.
    Kamzin A.S.
    Ishio S.
    Hasegawa T.
    Ganeev V.R.
    Tagirov L.R.
    Zaripova L.D.
    Bulletin of the Russian Academy of Sciences: Physics, 2015, 79 (8) : 999 - 1001
12345