Electronic and magnetic properties of Heusler alloy Co2MnSi epitaxial ultrathin films facing a MgO barrier studied by x-ray magnetic circular dichroism

被引：13
|
作者：
Saito, Toshiaki [1 ,2 ]
Katayama, Toshikazu [1 ]
Emura, Ai [1 ]
Sumida, Noa [1 ]
Matsuoka, Nanae [1 ]
Ishikawa, Takayuki [3 ]
Uemura, Tetsuya [3 ]
Yamamoto, Masafumi [3 ]
Asakura, Daisuke [4 ]
Koide, Tsuneharu [4 ]
机构：
[1] Toho Univ, Fac Sci, Dept Phys, Chiba 2748510, Japan
[2] Toho Univ, Res Mat Integrated Properties, Chiba 2748510, Japan
[3] Hokkaido Univ, Div Elect Informat, Sapporo, Hokkaido 0600814, Japan
[4] High Energy Accelerator Res Org, IMSS, Photon Factory, Tsukuba, Ibaraki 3050801, Japan
来源：
JOURNAL OF APPLIED PHYSICS | 2008年 / 103卷 / 07期
关键词：
D O I：
10.1063/1.2836676
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The electronic and magnetic states of an epitaxially grown full-Heusler alloy Co2MnSi (CMS) 1.1 nm (4 ML) thick ultrathin film and a CMS 50-nm-thick film both facing an epitaxial MgO(001) tunnel barrier were element-specifically studied by means of x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD). The observed XAS and XMCD spectra revealed that both the CMS films were not oxidized. The Co and Mn spin magnetic moments for the 4 ML thick CMS film obtained by applying the sum rules were close to those for the 50-nm-thick one and the theoretical values for bulk CMS with the L2(1) structure. These results indicate that 4 ML thick CMS ultrathin films facing a MgO barrier still retain the electronic and magnetic states for the L2(1) structure. (C) 2008 American Institute of Physics.
引用
收藏
页数：3
相关论文
共 50 条
  • [31] Anisotropic intrinsic damping constant of epitaxial Co2MnSi Heusler alloy films
    Yilgin, Resul
    Sakuraba, Yuya
    Oogane, Mikihiko
    Mizukami, Shigemi
    Ando, Yasuo
    Miyazaki, Terunobu
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2007, 46 (8-11): : L205 - L208
  • [32] Unveiling transport properties of Co2MnSi Heusler epitaxial thin films with ultra-low magnetic damping
    de Melo, C.
    Guillemard, C.
    Friedel, A. M.
    Palin, V
    Rojas-Sanchez, J. C.
    Petit-Watelot, S.
    Andrieu, S.
    APPLIED MATERIALS TODAY, 2021, 25
  • [33] Soft X-ray magnetic circular dichroism of Heusler-type alloy Co2MnGe
    Miyamoto, K
    Iori, K
    Kimura, A
    Xie, T
    Taniguchi, M
    Qiao, S
    Tsuchiya, K
    SOLID STATE COMMUNICATIONS, 2003, 128 (05) : 163 - 166
  • [34] Spin and orbital magnetic moments of ultrathin Fe films on GaAs(100) studied by X-ray magnetic circular dichroism
    Xu, YB
    Tselepi, M
    Dudzik, E
    Guertler, CM
    Vaz, CAF
    Wastlbauer, G
    Freeland, DJ
    Bland, JAC
    van der Laan, G
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 226 : 1643 - 1645
  • [35] Transport properties of epitaxial films for superconductor NbN and half-metallic Heusler alloy Co2MnSi under high magnetic fields
    Shigeta, Iduru
    Kubota, Takahide
    Sakuraba, Yuya
    Kimura, Shojiro
    Awaji, Satoshi
    Takanashi, Koki
    Hiroi, Masahiko
    PHYSICA B-CONDENSED MATTER, 2018, 536 : 310 - 313
  • [36] Magnetic x-ray linear dichroism in the photoelectron spectroscopy of ultrathin magnetic alloy films
    Tobin, JG
    Goodman, KW
    Mankey, GJ
    Willis, RF
    Denlinger, JD
    Rotenberg, E
    Warwick, A
    JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) : 5626 - 5628
  • [37] Enhancement of magnetic properties of Co2MnSi Heusler alloy prepared by mechanical alloying method
    Rabie, Naeemeh
    Gordani, Gholam Reza
    Ghasemi, Ali
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2017, 434 : 135 - 142
  • [38] Electronic structure and x-ray magnetic circular dichroism in the Heusler alloy Co2NbSn -: art. no. 174428
    Antonov, VN
    Harmon, BN
    Bekenov, LV
    Shpak, AP
    Yaresko, AN
    PHYSICAL REVIEW B, 2005, 71 (17)
  • [39] Magnetic properties of Co/Rh (001) multilayers studied by x-ray magnetic-circular dichroism
    Tomaz, MA
    Mayo, E
    Lederman, D
    Hallin, E
    Sham, TK
    O'Brien, WL
    Harp, GR
    PHYSICAL REVIEW B, 1998, 58 (17): : 11493 - 11500
  • [40] Time-resolved demagnetization of Co2MnSi observed using x-ray magnetic circular dichroism and an ultrafast streak camera
    Opachich, Y. P.
    Comin, A.
    Bartelt, A. F.
    Young, A. T.
    Scholl, A.
    Feng, J.
    Schmalhorst, J.
    Shin, H. J.
    Engelhorn, K.
    Risbud, S. H.
    Reiss, G.
    Padmore, H. A.
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2010, 22 (15)
12345