Thickness dependent transport properties and percolative phase separation in polycrystalline manganite thin films

被引：7
|
作者：
Chen, Y. H. [1 ]
Wu, T. B. [2 ]
机构：
[1] Natl Cheng Kung Univ, Dept Earth Sci, Tainan 701, Taiwan
[2] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan
来源：
APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 22期
关键词：
atomic force microscopy; electrical conductivity; ferromagnetic materials; grain boundaries; hopping conduction; lanthanum compounds; magnetic thin films; metal-insulator transition; percolation; phase separation; strontium compounds;
D O I：
10.1063/1.3037202
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The effects of film thicknesses on the electronic transport and percolative metal-insulator (M-I) transition of La1-xSrxMnO3 (LSMO) films have been investigated. The conductivity increases with the layer thickness; this is regarded as the relaxation of tensile strains and reduction in grain boundaries (fewer scattering centers) as well as shorter hopping distances, which suppresses the Jahn-Teller distortion or enhances the double exchange. It is also observed by conductive atomic force microscopy (CAFM) that metallic and insulating regions coexist in LSMO films. The domains undergo a percolative M-I transition, and TM-I observed by CAFM is consistent with the result of four-point probe measurements.
引用
收藏
页数：3
相关论文
共 50 条
  • [11] Thickness-dependent fcc-hcp phase transformation in polycrystalline titanium thin films
    Chakraborty, J.
    Kumar, Kishor
    Ranjan, Rajeev
    Chowdhury, S. Ghosh
    Singh, S. R.
    ACTA MATERIALIA, 2011, 59 (07) : 2615 - 2623
  • [12] Thickness dependent magneto transport properties of WTe2 thin films
    Yi, Ya
    Wu, Changming
    Wang, Huanwen
    Liu, Hongchao
    Li, Hui
    Zhang, Huachen
    He, Hongtao
    Wang, Jiannong
    SOLID STATE COMMUNICATIONS, 2017, 260 : 45 - 49
  • [13] Thickness dependent structural, magnetic and transport properties of nanostructured cobalt thin films
    Sharma, A.
    Tripathi, S.
    Brajpuriya, R.
    Shripathi, T.
    Chaudhari, S. M.
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2007, 7 (06) : 2041 - 2045
  • [14] Influence of crystallographic orientation on electronic phase separation in manganite thin films
    Zhu, Yi
    Liu, Yitao
    Wang, Wenzhao
    Ye, Biying
    Li, Qiang
    Wang, Yadi
    Liu, Hao
    Yang, Yulong
    Dong, Shuai
    Zheng, Changlin
    Zhou, Xiaodong
    Guo, Hangwen
    An, Ming
    Zhu, Yinyan
    Shen, Jian
    VACUUM, 2024, 224
  • [15] Structural Transition in Thickness Dependent CSD Grown Nanostructure Manganite Thin Films
    Tank, Tejas M.
    Thaker, Chetan M.
    Bhalodia, J. A.
    TRENDS IN CONDENSED MATTER AND MATERIALS SCIENCE, 2014, 1047 : 131 - +
  • [16] DEPENDENCE OF TRANSPORT PARAMETERS ON THICKNESS IN POLYCRYSTALLINE CDS THIN-FILMS
    BERTRAN, E
    MORENZA, JL
    ESTEVE, J
    THIN SOLID FILMS, 1985, 123 (04) : 297 - 306
  • [17] TRANSPORT AND DIELECTRIC PROPERTIES OF THIN POLYCRYSTALLINE COO FILMS
    LALEVIC, B
    FUSCHILLO, N
    KULIYEV, B
    WANG, W
    APPLIED PHYSICS, 1974, 5 (02): : 127 - 132
  • [18] Solution Processable CrN Thin Films: Thickness-Dependent Electrical Transport Properties
    Hui, Zhenzhen
    Zuo, Xuzhong
    Ye, Longqiang
    Wang, Xuchun
    Zhu, Xuebin
    MATERIALS, 2020, 13 (02)
  • [19] Thickness-dependent quantum oscillations of the transport properties in bismuth selenide thin films
    Rogacheva, E., I
    Menshikova, S., I
    Sipatov, A. Yu
    Nashchekina, O. N.
    THIN SOLID FILMS, 2019, 684 : 31 - 35
  • [20] Transport and magnetic properties of epitaxial and polycrystalline magnetite thin films
    J Appl Phys, 11 pt 2 (7049):
12345