Electronic Transport Properties of La2/3Ca1/3Mn0.98Cu0.02O3 Sintered at Different Temperature

被引：0
|
作者：
Hu Jinghua [1 ]
Liao Hong [1 ]
Xu Xiaoying [1 ]
机构：
[1] Wuhan Univ Technol, Sch Sci, Wuhan 430070, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2009年 / 24卷 / 02期
基金：
中国国家自然科学基金;
关键词：
sol-gel; Cu doping; electrical conductive mechanism; rare earth; GIANT MAGNETORESISTANCE; FILMS; LA0.7CA0.3MNO3; PEROVSKITE; MN; FE;
D O I：
10.1007/s11595-009-2300-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The sol-gel method was adopted to prepare series of La2/3Ca1/3Mn0.98Cu0.02O3 samples sintered at different temperatures, and the structure of samples, high-temperature electrical conductive mechanism and electronic transport properties of double-peak resistance were investigated. X-ray diffraction pattern indicates that the samples are in perovskite structures and obey the Variable-Rang Hopping Mechanism of rho = rho (0)exp[(T-0/T)(1/4)] under high temperatures during the electrical conduction. In addition, based on the polycrystalline granular system surface and image, the reasonable explanation was given for the double-peak resistance phemomenon.
引用
收藏
页码：300 / 303
页数：4
相关论文
共 50 条
  • [1] Electronic transport properties of La2/3Ca1/3Mn0.98Cu0.02O3 sintered at different temperature
    Jinghua Hu
    Hong Liao
    Xiaoying Xu
    Journal of Wuhan University of Technology-Mater. Sci. Ed., 2009, 24 : 300 - 303
  • [2] Electronic Transport Properties of La2/3Ca1/3Mn0.98Cu0.02O3 Sintered at Different Temperature
    胡清华
    Journal of Wuhan University of Technology(Materials Science), 2009, 24 (02) : 300 - 303
  • [3] Transport and magnetism in La2/3Ca1/3(Mn1-xCox)O3 and La2/3Ca1/3(Mn1-xNix)O3
    J Appl Phys, 8 pt 2B (4974):
  • [4] Transport and magnetism in La2/3Ca1/3(Mn1-xCox)O-3 and La2/3Ca1/3(Mn1-xNix)O-3
    Rubinstein, M
    Tritt, TM
    Synder, JE
    JOURNAL OF APPLIED PHYSICS, 1997, 81 (08) : 4974 - 4974
  • [5] Magnetotransport properties of La2/3Ca1/3MnO3/YBa2Cu4O8/La2/3Ca1/3MnO3 sandwiches
    Zhao, K
    Feng, JF
    Huang, YH
    Wong, HK
    CHINESE PHYSICS, 2005, 14 (02): : 398 - 403
  • [6] Colossal magnetoresistance and electronic properties of La2/3Ca1/3(Mn0.85Zn0.15)O3
    Xu, MX
    Jiao, ZK
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1999, 18 (16) : 1307 - 1309
  • [7] Structural, thermal, magnetic, and transport properties of (La2/3Ca1/3) (Mn1-xSnx)O3-δ compounds
    Przewoznik, J
    Chmist, J
    Kolwicz-Chodak, L
    Tarnawski, Z
    Kolodziejczyk, A
    Krop, K
    Kellner, K
    Gritzner, G
    ACTA PHYSICA POLONICA A, 2004, 106 (05) : 665 - 680
  • [8] Effect of Cu doping at the Mn site on the transport and magnetic behaviors of La2/3Ca1/3MnO3
    Yuan, SL
    Li, ZY
    Zeng, XY
    Zhang, GQ
    Tu, F
    Peng, G
    Liu, J
    Jiang, Y
    Yang, YP
    Tang, CQ
    EUROPEAN PHYSICAL JOURNAL B, 2001, 20 (02): : 177 - 181
  • [9] Magnetic and transport properties in polycrystalline La2/3Ca1/3MnO3
    Yuan, SL
    Zhao, ZY
    Xia, ZC
    Liu, L
    Zhang, GH
    Tang, J
    Zhang, LJ
    Feng, W
    Chen, W
    Zhao, LF
    Liu, S
    SOLID STATE COMMUNICATIONS, 2003, 125 (11-12) : 653 - 657
  • [10] Transport properties in Gd doped La2/3Ca1/3MnO3
    Hueso, LE
    Sande, P
    Rivadulla, F
    Fondado, A
    Rivas, J
    López-Quintela, MA
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 242 : 665 - 667
12345