Magnetic and transport properties in polycrystalline La2/3Ca1/3MnO3

被引：0
作者：
Yuan, SL [1 ]
Zhao, ZY
Xia, ZC
Liu, L
Zhang, GH
Tang, J
Zhang, LJ
Feng, W
Chen, W
Zhao, LF
Liu, S
机构：
[1] Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China
[2] Wuhan Univ Technol, Dept Phys, Wuhan 430070, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2003年 / 125卷 / 11-12期
基金：
中国国家自然科学基金;
关键词：
polycrystaline manganites; spin-polarized tunneling; insulator-metal transition;
D O I：
10.1016/S0038-1098(03)00032-2
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A systematic investigation of magnetic and transport properties is carried out for La2/3Ca1/3MnO3 polycrystalline sample with the average grain size similar to 300 nm. Experimental results are discussed in terms of spin-polarized tunnelling model. It is shown that although the resistivity rho(T, H) is related to the magnetization M(T, H), the variation in M(T, H) does not exactly track rho(T, H). A possible interpretation is presented by considering the alignment of Mn spins within grains and the magnetic coupling of neighboring grains. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：653 / 657
页数：5
相关论文
共 50 条
  • [31] Theoretical simulation on the variation in the transport behavior under pressure and magnetic field in La0.825Sr0.175MnO3
    Wang, Jing-Yi
    Hu, Chun-Lian
    Jin, Kui-Juan
    Lu, Hui-Bin
    Wang, Cong
    Zhao, Rui-Qiang
    Yang, Guo-Zhen
    JOURNAL OF APPLIED PHYSICS, 2010, 107 (11)
  • [32] Spin-dependent transport in La0.67Sr0.33MnO3/YBa2Cu3O7-δ junctions
    Sawa, A
    Kashiwaya, S
    Obara, H
    Yamasaki, H
    Koyanagi, M
    Tanaka, Y
    PHYSICA B, 2000, 284 : 493 - 494
  • [33] Effect of cation size and size-disorder on the magnetic and electron transport properties of La0.7-xLnxSr0.3MnO3 (Ln = Gd and Dy)
    Seikh, MM
    Sudheendra, L
    Rao, CNR
    SOLID STATE SCIENCES, 2004, 6 (06) : 561 - 564
  • [34] Low-field magnetoresistance of (1-x)La0.7Ca0.3MnO3 + xAg composites
    Phong, P. T.
    Khiem, N. V.
    Dai, N. V.
    Manh, D. H.
    Hong, L. V.
    Phuc, N. X.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 484 (1-2) : 12 - 16
  • [35] Study of magnetic and magnetotransport properties in polycrystalline Pr0.6A′0.2Sr0.2MnO3 (A′ ≡ Y, La) compounds: Observation of enhanced electron-electron interaction
    Dutta, Apurba
    Banik, Sanjib
    Das, I
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2021, 533
  • [36] Influence of Gd-doping in La0.7Ca0.3MnO3 on its structural and magneto-electrical properties
    Altintas, S. P.
    Amira, A.
    Varilci, A.
    Terzioglu, C.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2012, 324 (07) : 1331 - 1336
  • [37] Nonohmic Behaviors and Charge-Ordering Phenomena of La0.7Ca0.3MnO3 Sandwiched by CaMnO3 Layers
    Van-Hien, Hoang
    Heon-Jung, Kim
    ACS APPLIED ELECTRONIC MATERIALS, 2024, 6 (09) : 6949 - 6956
  • [38] Influence of Al2O3 on low-field spin-polarized tunneling magnetoresistance of (1-x) La0.7Ca0.3MnO3+x Al2O3 composites
    Phong, P. T.
    Khiem, N. V.
    Dai, N. V.
    Manh, D. H.
    Hong, L. V.
    Phuc, N. X.
    MATERIALS LETTERS, 2009, 63 (3-4) : 353 - 356
  • [39] Magnetic and electronic transport properties of SrTiO3-doped La-K-Mn-O system
    Wu Jian
    Zhang Shi-Yuan
    ACTA PHYSICA SINICA, 2007, 56 (02) : 1127 - 1134
  • [40] Thickness dependent microstructural changes in La0.5Ca0.5MnO3 thin films deposited on (111) SrTiO3
    Aydogdu, G. H.
    Kuru, Y.
    Nelayah, J.
    van Aken, P. A.
    Habermeier, H-U.
    THIN SOLID FILMS, 2010, 518 (16) : 4667 - 4669
12345