Transport Properties of Ferromagnetic Granular Co-Al-O Films

被引:5
|
作者
Nakamura, S. [1 ,4 ]
Iwashita, T. [1 ]
Nojima, T. [1 ,4 ]
Yoshihara, A. [2 ]
Ohnuma, S. [3 ]
Fujimori, H. [3 ]
机构
[1] Inst Mat Res, Sendai, Miyagi 9808577, Japan
[2] Ishinomaki Senshu Univ, Dept Basic Sci, Ishinomaki, Miyagi 9868580, Japan
[3] Res Inst Elect & Magnet Mat, Sendai, Miyagi 9820807, Japan
[4] Tohoku Univ, Ctr Low Temp Sci, Sendai, Miyagi 9808577, Japan
来源
INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009) | 2010年 / 200卷
关键词
TUNNEL-TYPE GMR; THIN-FILMS; MAGNETORESISTANCE; DEPENDENCE; RESISTANCE; SYSTEMS; ALLOYS;
D O I
10.1088/1742-6596/200/1/012141
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We investigate the transport properties of ferromagnetic granular Co-Al-O films. The electrical resistivity of these films has a T-2 dependence at low temperatures, which can be explained in terms of scattering of electrons by spin waves. The resistivity of these films was found to have a logarithmic temperature dependence. The negative magnetoresistivity has long tails in high field ranges.
引用
收藏
页数:4
相关论文
共 50 条
  • [1] Transport and Magnetic Properties of Ferromagnetic Co-Al-O and Fe-Al-O Granular Films
    Nakamura, S.
    Iwashita, T.
    Nojima, T.
    Yoshihara, A.
    Ohnuma, S.
    Fujimori, H.
    2ND INTERNATIONAL SYMPOSIUM ON ADVANCED MAGNETIC MATERIALS AND APPLICATIONS (ISAMMA 2010), 2011, 266
  • [2] Spin waves and transport properties in ferromagnetic Co-Al-O and Fe-Al-O granular films: A Brillouin scattering study
    Yoshihara, Akira
    Ohnuma, Shigehiro
    Fujimori, Hiroyasu
    Nakamura, Shintaro
    Nojima, Tsutomu
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2008, 77 (09)
  • [3] Microstructure of Co-Al-O granular thin films
    Ohnuma, M
    Hono, K
    Abe, E
    Onodera, H
    Mitani, S
    Fujimori, H
    JOURNAL OF APPLIED PHYSICS, 1997, 82 (11) : 5646 - 5652
  • [4] Microstructures and magnetic properties of Co-Al-O granular thin films
    Ohnuma, M
    Hono, K
    Onodera, H
    Ohnuma, S
    Fujimori, H
    Pedersen, JS
    JOURNAL OF APPLIED PHYSICS, 2000, 87 (02) : 817 - 823
  • [5] Electrical transport and magnetoresistance in Co-Al-O granular films under high pressure
    Kaji, S
    Oomi, G
    Hedo, M
    Uwatoko, Y
    Mitani, S
    Takanashi, K
    Takahashi, S
    Maekawa, S
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2005, 74 (10) : 2783 - 2790
  • [6] Distribution of Co particles in Co-Al-O granular thin films
    Natl. Research Institute for Metals, 1-2-1 Sengen, Tsukuba 3050047, Japan
    不详
    不详
    Mater Sci Forum, (171-176):
  • [7] Distribution of Co particles in Co-Al-O granular thin films
    Ohnuma, M
    Hono, K
    Onodera, H
    Pedersen, JS
    Mitani, S
    Fujimori, H
    ADVANCES IN NANOCRYSTALLIZATION, 1999, 307 : 171 - 176
  • [8] Brillouin Light Scattering from Magnetic Excitations in Superparamagnetic and Ferromagnetic Co-Al-O Granular Films
    Yoshihara, Akira
    Maeda, Toshiteru
    Kawamura, Satoshi
    Nakamura, Shintaro
    Nojima, Tsutomu
    Takeda, Yoshihiko
    Ohnuma, Shigehiro
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2018, 87 (04)
  • [9] Pressure enhanced tunnel magnetoresistance in Co-Al-O granular films
    Kaji, S
    Oomi, G
    Mitani, S
    Takahashi, S
    Takanashi, K
    Maekawa, S
    PHYSICAL REVIEW B, 2003, 68 (05):
  • [10] Effect of pressure on the tunnel magnetoresistance of Co-Al-O granular films
    Kaji, S
    Oomi, G
    Mitani, S
    Takanashi, K
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 272 : 1829 - 1830