Influence of Growth Temperature on the Magnetic Anisotropy of Co Grown on GaAs (001) Substrates

被引：0
|
作者：
Kim, Kyung-Ho [1 ]
Kim, Hyung-Jun [1 ]
Song, Jin Dong [1 ]
Koo, Hyun Cheol [1 ]
Chang, Joon-Yeon [1 ]
Han, Suk-Hee [1 ]
机构：
[1] Korea Inst Sci & Technol, Ctr Spintron Res, Seoul 136791, South Korea
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2008年 / 53卷 / 06期
关键词：
Cobalt; Gallium arsenide; Surface morphology; M-H hysteresis;
D O I：
10.3938/jkps.53.3352
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The morphology and the in-plane magnetic anisotropy changes in polycrystalline hexagonal-closed-packed (hcp) Co grown on a GaAs (001) substrate have been extensively investigated as a function of the growth temperature. Alternating-gradient magnetometry (AGM) measurements revealed a manifest change in the magnetic anisotropy from uniaxial to cubic as the growth temperature was increased from room temperature to 200 degrees C. The Co grown at room temperature shows that Co islands elongated along the [110] direction corresponding to the easy axis of the uniaxial magnetic anisotropy. The Co grown at 200 degrees C showed an isotropic morphology with cubic-magnetic anisotropy. The phase transition from a body-centered-cubic to a hexagonal-closed-packed phase was retarded at the higher growth temperatures. The experimental results indicate that the growth temperature is the key factor determining the morphology, as well as the magnetic anisotropy, of Co grown on GaAs (001) substrates.
引用
收藏
页码：3352 / 3355
页数：4
相关论文
共 50 条
  • [31] Influence of the growth conditions on the ridge morphology during GaAs deposition on GaAs (001) patterned substrates
    Williams, RS
    Ashwin, MJ
    Jones, TS
    Neave, JH
    JOURNAL OF APPLIED PHYSICS, 2004, 95 (11) : 6112 - 6118
  • [32] Enhancement of uniaxial magnetic anisotropy in Fe thin films grown on GaAs(001) with an MgO underlayer
    Sakshath, S.
    Bhat, S. V.
    Kumar, P. S. Anil
    Sander, D.
    Kirschner, J.
    JOURNAL OF APPLIED PHYSICS, 2011, 109 (07)
  • [33] Magnetic anisotropy in electrodeposited Co films and spin-valves on GaAs substrates
    Attenborough, K
    Cerisier, M
    Boeve, H
    De Boeck, J
    Borghs, G
    Celis, JP
    POLYCRYSTALLINE METAL AND MAGNETIC THIN FILMS, 1999, 562 : 21 - 26
  • [34] Magnetic anisotropy and exchange interactions in Fe/Co multilayers grown on different substrates
    Ciprian, R.
    Carbucicchio, M.
    INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009), 2010, 200
  • [35] Magnetic anisotropy changes in ultrathin Co films grown on vicinal sapphire substrates
    Stupakiewicz, A
    Gieniusz, R
    Maziewski, A
    Postava, K
    Baczewski, LT
    Wawro, A
    PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2006, 243 (01): : 202 - 205
  • [36] Epitaxial growth and magnetic anisotropy of electrodeposited Ni and Co thin films grown on n-type GaAs
    Evans, P
    Scheck, C
    de Jonge, WJM
    Kohlhepp, JT
    Isaac-Smith, T
    Wieldraaijer, H
    Williams, J
    Schad, R
    Zangari, G
    IEEE TRANSACTIONS ON MAGNETICS, 2002, 38 (05) : 2670 - 2672
  • [37] Unstrained GaAs quantum dashes grown on GaAs(001) substrates by droplet epitaxy
    Quantum Dot Research Center, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
    不详
    Appl. Phys. Express, 4
  • [38] Unstrained GaAs Quantum Dashes Grown on GaAs(001) Substrates by Droplet Epitaxy
    Jo, Masafumi
    Mano, Takaaki
    Sakoda, Kazuaki
    APPLIED PHYSICS EXPRESS, 2010, 3 (04)
  • [39] Temperature-driven change of morphology and magnetic anisotropy of Fe monolayers on GaAs(001)
    Zakeri, K.
    Urban, C.
    Kebe, T.
    Lindner, J.
    Koehler, U.
    Farle, M.
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2008, 90 (03): : 487 - 491
  • [40] Temperature-driven change of morphology and magnetic anisotropy of Fe monolayers on GaAs(001)
    K. Zakeri
    C. Urban
    T. Kebe
    J. Lindner
    U. Köhler
    M. Farle
    Applied Physics A, 2008, 90 : 487 - 491
12345