Magnetoresistive properties of bulk polycrystalline La0.75Sr0.25MnO3 manganites

被引：0
|
作者：
Nosov, A.P. [1 ]
Vasil'ev, V.G. [1 ]
Vladimirova, E.V. [1 ]
Ustinov, V.V. [1 ]
机构：
[1] Inst. of Metal Physics, Ural Div., RAS, ul. S. Kovalevskoj 18, Ekaterinburg, 620219, Russia
来源：
Fizika Metallov i Metallovedenie | 2001年 / 92卷 / 05期
关键词：
Annealing - Grain boundaries - Magnetic anisotropy - Oxygen - Polycrystals;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The results of experimental investigations of magnetic and magnetoresistive properties of bulk polycrystalline La0.75Sr0.25MnO3 manganites annealed for various times in an oxygen flow are presented. Contributions to the magnetoresistance from grains and grain boundaries are separated. It is shown that these contributions depend on the annealing duration. It was found that the magnetic anisotropy of the system increases with an increase in the annealing duration. The mechanisms of conductivity are discussed within the model of tunneling of spin-polarized carriers through nanosize grain boundaries.
引用
收藏
页码：59 / 65
相关论文
共 50 条
  • [21] Magnetoresistive Properties of Bulk Polycrystalline Manganites
    A. P. Nosov
    V. G. Vasil'ev
    E. V. Vladimirova
    E. V. Mikhaleva
    B. V. Slobodin
    V. V. Ustinov
    Russian Journal of Nondestructive Testing, 2001, 37 : 181 - 185
  • [22] Magnetoresistive properties of bulk polycrystalline manganites
    Nosov, AP
    Vasil'ev, VG
    Vladimirova, EV
    Mikhaleva, EV
    Slobodin, BV
    Ustinov, VV
    RUSSIAN JOURNAL OF NONDESTRUCTIVE TESTING, 2001, 37 (03) : 181 - 185
  • [23] Exchange-bias effect at La0.75Sr0.25MnO3/LaNiO3 interfaces
    Rojas Sanchez, J. C.
    Nelson-Cheeseman, B.
    Granada, M.
    Arenholz, E.
    Steren, L. B.
    PHYSICAL REVIEW B, 2012, 85 (09):
  • [24] Crystal facet control of LaFeO3, LaCrO3, and La0.75Sr0.25MnO3
    Hou, Changmin
    Feng, Wenchun
    Yuan, Long
    Huang, Keke
    Feng, Shouhua
    CRYSTENGCOMM, 2014, 16 (14): : 2874 - 2877
  • [25] Giant magnetoimpedance and high frequency electrical detection of magnetic transition in La0.75Sr0.25MnO3
    Barik, S. K.
    Rebello, A.
    Tan, C. L.
    Mahendiran, R.
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (02)
  • [26] The magnetic and hyperthermia studies of bare and silica-coated La0.75Sr0.25MnO3 nanoparticles
    O. Kaman
    P. Veverka
    Z. Jirák
    M. Maryško
    K. Knížek
    M. Veverka
    P. Kašpar
    M. Burian
    V. Šepelák
    E. Pollert
    Journal of Nanoparticle Research, 2011, 13 : 1237 - 1252
  • [27] SUS430合金La0.75Sr0.25MnO3涂层烧成气氛研究
    徐序
    胡玮琪
    罗凌虹
    吴也凡
    石纪军
    程亮
    中国陶瓷工业, 2013, 20 (06) : 7 - 10
  • [28] La0.75Sr0.25MnO3钙钛矿涂层抗结焦性能研究
    李中青
    梁贻景
    王联程
    舒子涵
    赫远韬
    全辉
    王志远
    石油炼制与化工, 2024, 55 (02) : 168 - 177
  • [29] 丙烯酸法制备La0.75Sr0.25MnO3纳米粉体
    王琴
    陈燕
    诸跃进
    张京
    宁波大学学报(理工版), 2014, 27 (02) : 78 - 82
  • [30] The magnetic and hyperthermia studies of bare and silica-coated La0.75Sr0.25MnO3 nanoparticles
    Kaman, O.
    Veverka, P.
    Jirak, Z.
    Marysko, M.
    Knizek, K.
    Veverka, M.
    Kaspar, P.
    Burian, M.
    Sepelak, V.
    Pollert, E.
    JOURNAL OF NANOPARTICLE RESEARCH, 2011, 13 (03) : 1237 - 1252
12345