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
  • [1] Photoinduced Nonthermal Reduction of the Coercive Field in FePt and FePt0.84Rh0.16 Epitaxial Thin Films in the L10 Phase
    A. V. Petrov
    S. I. Nikitin
    L. R. Tagirov
    A. S. Kamzin
    R. V. Yusupov
    JETP Letters, 2023, 118 : 117 - 122
  • [2] Epitaxial L10 FePt magnetic thin films sputtered on Cu (001)
    Sun, CJ
    Chow, GM
    Wang, JP
    APPLIED PHYSICS LETTERS, 2003, 82 (12) : 1902 - 1904
  • [3] Hard magnetic FePt thin films and nanostructures in L10 phase
    Goll, D.
    Breitling, A.
    Goo, N. H.
    Sigle, W.
    Hirscher, M.
    Schuetz, G.
    JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2006, 13 : 97 - 101
  • [4] Magnetic viscosity effects in epitaxial L10 FePt thin films and exchange spring Fe-FePt bilayers
    Pernechele, C.
    Solzi, M.
    Pellicelli, R.
    Ghidini, M.
    Albertini, F.
    Casoli, F.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 316 (02) : E162 - E165
  • [5] Reduction of grain size and ordering temperature in L10 FePt thin films
    Sun, AC
    Chen, SC
    Kuo, PC
    Chou, CY
    Fang, YH
    Hsu, JH
    Huang, HL
    Chang, HW
    IEEE TRANSACTIONS ON MAGNETICS, 2005, 41 (10) : 3772 - 3774
  • [6] Anisotropic lattice dynamics of FePt L10 thin films
    Couet, S.
    Sternik, M.
    Laenens, B.
    Siegel, A.
    Parlinski, K.
    Planckaert, N.
    Groestlinger, F.
    Chumakov, A. I.
    Rueffer, R.
    Sepiol, B.
    Temst, K.
    Vantomme, A.
    PHYSICAL REVIEW B, 2010, 82 (09)
  • [7] Hard magnetic L10 FePt thin films and nanopatterns
    Breitling, Achim
    Goll, Dagmar
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2008, 320 (08) : 1449 - 1456
  • [8] Advanced Nb/FePt L10 hybrid thin films
    Haindl, S.
    Thersleff, T.
    Shapoval, T.
    Lai, Y. W.
    McCord, J.
    Schultz, L.
    Holzapfel, B.
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2011, 24 (02):
  • [9] Columnar grain growth of FePt(L10) thin films
    Yang, En
    Ho, Hoan
    Laughlin, David E.
    Zhu, Jian-Gang
    JOURNAL OF APPLIED PHYSICS, 2012, 111 (07)
  • [10] A study on high coercivity and L10 ordered phase in CoPt and FePt thin films
    Ristau, RA
    Barmak, K
    Lewis, LH
    Coffey, KR
    Howard, JK
    ADVANCED HARD AND SOFT MAGNETIC MATERIALS, 1999, 577 : 347 - 352
12345