Magnetic anisotropy of L10-ordered FePt thin films studied by Fe and Pt L2;3-edges x-ray magnetic circular dichroism

被引：27
|
作者：
Ikeda, K. [1 ]
Seki, T. [2 ]
Shibata, G. [1 ]
Kadono, T. [1 ]
Ishigami, K. [1 ]
Takahashi, Y. [1 ]
Horio, M. [1 ]
Sakamoto, S. [1 ]
Nonaka, Y. [1 ]
Sakamaki, M. [3 ]
Amemiya, K. [3 ]
Kawamura, N. [4 ]
Suzuki, M. [4 ]
Takanashi, K. [2 ]
Fujimori, A. [1 ]
机构：
[1] Univ Tokyo, Dept Phys, Hongo 1130033, Japan
[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[3] KEK, Inst Mat Struct Sci, Tsukuba, Ibaraki 3050801, Japan
[4] JASRI, 1-1-1 Kouto, Sayo, Hyogo 6795198, Japan
来源：
APPLIED PHYSICS LETTERS | 2017年 / 111卷 / 14期
关键词：
MAGNETOCRYSTALLINE ANISOTROPY; ORBITAL MAGNETIZATION; ALLOYS; ORIGIN;
D O I：
10.1063/1.4993077
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The strong perpendicular magnetic anisotropy of L1(0)-ordered FePt has been the subject of extensive studies for a long time. However, it is not known which element, Fe or Pt, mainly contributes to the magnetic anisotropy energy. We have investigated the anisotropy of the orbital magnetic moments of Fe 3d and Pt 5d electrons in L1(0)-ordered FePt thin films by Fe and Pt L-2; 3-edge x-ray magnetic circular dichroism (XMCD) measurements for samples with various degrees of long-range chemical order S. Fe L-2;3-edge XMCD showed that the orbital magnetic moment was larger when the magnetic field was applied perpendicular to the film than parallel to it and that the anisotropy of the orbital magnetic moment increased with S. Pt L-2;3-edge XMCD also showed that the orbital magnetic moment was smaller when the magnetic field was applied perpendicular to the film than parallel to it, opposite to the Fe L-2;3-edge XMCD results although the anisotropy of the orbital magnetic moment increases with S like the Fe edge. These results are qualitatively consistent with the first-principles calculation by Solovyev et al. [Phys. Rev. B 52, 13419 (1995)], which also predicts the dominant contributions of Pt 5d to the magnetic anisotropy energy rather than Fe 3d due to the strong spin-orbit coupling and the small spin splitting of the Pt 5d bands in L1(0)-ordered FePt. Published by AIP Publishing.
引用
收藏
页数：5
相关论文
共 50 条
  • [41] Single-Phase L10-Ordered High Entropy Thin Films with High Magnetic Anisotropy
    Beeson, Willie B.
    Bista, Dinesh
    Zhang, Huairuo
    Krylyuk, Sergiy
    Davydov, Albert V.
    Yin, Gen
    Liu, Kai
    ADVANCED SCIENCE, 2024, 11 (34)
  • [42] X-ray magnetic circular dichroism at rare-earth (R) L2,3 absorption edges in R2Fe14B
    Asakura, K
    Fukui, K
    Ogasawara, H
    Harada, I
    Kotani, A
    PHYSICA B-CONDENSED MATTER, 2004, 345 (1-4) : 205 - 208
  • [43] X-ray magnetic circular dichroism at the Gd L2,3 absorption edges in GdN layers:: The influence of lattice expansion
    Leuenberger, F.
    Parge, A.
    Felsch, W.
    Baudelet, F.
    Giorgetti, C.
    Dartyge, E.
    Wilhelm, F.
    PHYSICAL REVIEW B, 2006, 73 (21)
  • [44] X-ray absorption spectroscopy and magnetic circular dichroism studies of L10-Mn-Ga thin films
    Glas, M.
    Sterwerf, C.
    Schmalhorst, J. M.
    Ebke, D.
    Jenkins, C.
    Arenholz, E.
    Reiss, G.
    JOURNAL OF APPLIED PHYSICS, 2013, 114 (18)
  • [45] RELATIVISTIC TIGHT-BINDING CALCULATIONS OF X-RAY ABSORPTION AND MAGNETIC CIRCULAR-DICHROISM AT THE L2 AND L3 EDGES OF NICKEL AND IRON
    SMITH, NV
    CHEN, CT
    SETTE, F
    MATTHEISS, LF
    PHYSICAL REVIEW B, 1992, 46 (02): : 1023 - 1032
  • [46] Development of L10-ordered FePt with low damping and large perpendicular magnetic anisotropy by engineering the nanostructure
    Bentley, P. D.
    Sasaki, Y.
    Suzuki, I.
    Isogami, S.
    Takahashi, Y. K.
    Suto, H.
    APPLIED PHYSICS LETTERS, 2025, 126 (02)
  • [47] Magnetic domain imaging in L10 ordered FePt thin films with in-plane uniaxial magnetic anisotropy
    Mallick, Sougata
    Bedanta, Subhankar
    Seki, Takeshi
    Takanashi, Koki
    JOURNAL OF APPLIED PHYSICS, 2014, 116 (13)
  • [48] Investigation of a Spin Transition in a LaCoO3 Single Crystal by the Method of X-Ray Magnetic Circular Dichroism at the Cobalt K- and L 2,3-Edges
    Sikolenko, V. V.
    Troyanchuk, I. O.
    Karpinsky, D. V.
    Rogalev, A.
    Wilhelm, F.
    Rosenberg, R.
    Prabhakaran, D.
    Efimova, E. A.
    Efimov, V. V.
    Tiutiunnikov, S. I.
    Bobrikov, I. A.
    PHYSICS OF THE SOLID STATE, 2018, 60 (02) : 288 - 291
  • [49] Magnetic anisotropy and exchange biasing in heterojunctions studied by transverse magnetic circular X-ray dichroism
    van der Laan, G
    Durr, HA
    PHYSICA B, 1998, 248 : 121 - 126
  • [50] Magnetic anisotropy and exchange biasing in heterojunctions studied by transverse magnetic circular X-ray dichroism
    van der Laan, G.
    Durr, H.A.
    Physica B: Condensed Matter, 1998, 248 : 121 - 126
12345