Microstructure and magnetic properties of Co/Os/Co and Fe/Os/Fe thin films

被引：4
|
作者：
Chou, C. Y. [1 ]
Yao, Y. D. [2 ]
Kuo, P. C. [1 ]
Lee, S. F. [2 ]
Chou, J. J. [2 ]
机构：
[1] Natl Taiwan Univ, Inst Mat Sci & Engn, Taipei 106, Taiwan
[2] Acad Sinica, Inst Phys, Taipei 115, Taiwan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2006年 / 304卷 / 01期
关键词：
Interlayer exchange coupling; Magnetoresistance; Osmium;
D O I：
10.1016/j.jmmm.2006.02.057
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Co/Os/Co and Fe/Os/Fe thin films were deposited on natural oxidized Si (1 0 0) substrates at room temperature by magnetron sputtering. The thickness was kept at 100 angstrom for all the magnetic layers, and was varied between 3 and 20 angstrom for the Os layer. Effects of the Os layer thickness and microstructure on the magnetic properties of the film were investigated. The results showed that the antiferromagnetic coupling occurred for the Co/Os/Co thin films with the Os thickness between 7 and 13 angstrom. Due to the mismatch of Fe and Os, pinholes in the Os layer could be observed. The presence of interface roughness and pinholes reduces the antiferromagnetic interlayer exchange coupling strength and affect the dependence of the interlayer exchange coupling on the Os layer thickness. From the magnetoresistance (Delta MR) study, the largest DMR ratio arising from antiferromagnetic coupling for Co/Os/Co and Fe/Os/Fe thin films are about 0.45% and 0.07% respectively. The small DMR in Fe/Os/Fe system is explained by the large interface roughness and lattice mismatch effect. (C) 2006 Elsevier B. V. All rights reserved.
引用
收藏
页码：E349 / E352
页数：4
相关论文
共 50 条
  • [41] MAGNETIC-PROPERTIES OF CO AND CO-FE ELECTRODEPOSITED ALUMITE FILMS
    ARAI, KI
    KANG, HW
    ISHIYAMA, K
    IEEE TRANSACTIONS ON MAGNETICS, 1990, 26 (05) : 1635 - 1637
  • [42] Magnetic properties and microstructure of Co/polymer composite thin films
    Iwasaki, Kazuharu
    Makino, Yoshimi
    Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, 1994, 41 (05): : 595 - 601
  • [43] Structures and magnetic properties of Co and Co Fe films prepared by magnetron sputtering
    Lin, C. H.
    Chen, W. H.
    Tsay, J. S.
    Hong, I. T.
    Chiu, C. H.
    Huang, H. S.
    THIN SOLID FILMS, 2011, 519 (23) : 8379 - 8383
  • [44] MAGNETIC PROPERTIES AND MICROSTRUCTURE OF Co-Ni-Fe-Gd-Mn ELECTRODEPOSITED THIN FILM
    Suresh, R.
    Sathishkumar, P.
    Kumaravelan, S.
    Seshadri, S.
    SURFACE REVIEW AND LETTERS, 2021, 28 (01)
  • [45] Evolution of microstructure and magnetic properties of Fe-Co-N films sandwiched by AlN layers
    Xu, Xinxing
    Li, Wenchang
    Harumoto, Takashi
    Nakamura, Yoshio
    Shi, Ji
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2022, 555
  • [46] Surface morphologies and magnetic properties of Fe and Co magnetic thin films on polyethylene naphthalate organic substrates
    Kaiju, Hideo
    Abe, Taro
    Kondo, Kenji
    Ishibashi, Akira
    JOURNAL OF APPLIED PHYSICS, 2012, 111 (07)
  • [47] Soft Co-Fe films: the structure and magnetic properties
    Ravlik, AG
    Roschenko, ST
    JOURNAL DE PHYSIQUE IV, 1998, 8 (P2): : 445 - 448
  • [48] Soft Co-Fe films: the structure and magnetic properties
    Kharkov State Polytechnic Univ, Kharkov, Ukraine
    Journal De Physique. IV : JP, 1998, 8 (02): : 445 - 448
  • [49] STRUCTURES AND MAGNETIC-PROPERTIES OF FE/CO MULTILAYER FILMS
    KOMURO, M
    KOZONO, Y
    NARISHIGE, S
    HANAZONO, M
    SUGITA, Y
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (11): : L2105 - L2107
  • [50] The magnetic properties of Fe-Co-Pt alloys films
    Lai, YC
    Chang, YH
    Chen, YK
    THIN SOLID FILMS, 2004, 469 : 290 - 294
12345