Electrical transport properties of (CoxAl1-x)2O3-v oxide magnetic semiconductor and corresponding Co-Al2O3 granular films

被引：9
|
作者：
Tian, Y. F.
Zhang, Y. P.
Yan, Shi-Shen [1 ]
Liu, G. L.
Chen, Y. X.
Mei, L. M.
Ji, G.
Zhang, Z.
机构：
[1] Shandong Univ, Sch Phys & Microelect, Shandong 250100, Peoples R China
[2] Shandong Univ, Natl Key Lab Crystal Mat, Shandong 250100, Peoples R China
[3] Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100022, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 01期
关键词：
D O I：
10.1063/1.2754645
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
(CoxAl1-x)(2)O3-v oxide magnetic semiconductor films were synthesized by introducing an impurity band in the insulating Al2O3 band gap, and the corresponding granular films were obtained by annealing. For both kinds of films, their electrical transport properties are well described by spin dependent variable range hopping mechanism instead of the usually expected intergrain tunnelling. The magnetoresistance was also discussed. (C) 2007 American Institute of Physics.
引用
收藏
页数：3
相关论文
共 50 条
  • [31] Ordered binary oxide films of V2O3(0001) on Al2O3
    Guo, Q
    Kim, DY
    Street, SC
    Goodman, DW
    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1999, 17 (04): : 1887 - 1892
  • [32] Magnetic characterization of granular Co/Al2O3 multilayers
    Torres, JM
    Luis, F
    García, LM
    Bartolomé, J
    Stankiewicz, J
    Petroff, F
    Fettar, F
    Vaurés, A
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 242 (PART I) : 575 - 577
  • [33] Cobalt content- and magnetic field-dependent transmission behaviors of red laser light for Co-Al2O3 granular thin films
    Giap Van Cuong
    Tran Trung
    Nguyen Anh Tue
    Nguyen Anh Tuan
    OPTICAL MATERIALS, 2017, 69 : 303 - 311
  • [34] ELECTRICAL-CONDUCTIVITY OF GRANULAR W-AL2O3 FILMS
    PINCH, H
    GITTLEMA.J
    ABELES, B
    BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1974, 19 (03): : 342 - 342
  • [35] MAGNETIC-PROPERTIES OF GRANULAR FILMS FOR THE COMPOSITE SYSTEM (PERMALLOY AL2O3)
    GUEVARA, F
    HURDEQUINT, H
    VINCENT, E
    VAURES, A
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 140 (pt 1) : 381 - 382
  • [36] Magnetic properties of FePt and FePt-Al2O3 granular films by post annealing
    Matsumoto, M
    Morisako, A
    Katayama, N
    JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) : 7169 - 7171
  • [37] Magnetic properties of FePt and FePt-Al2O3 granular films by post annealing
    Matsumoto, M.
    Morisako, A.
    Katayama, N.
    Journal of Applied Physics, 2003, 93 (10 2): : 7169 - 7171
  • [38] Growth of cobalt nanoparticles in Co-Al2O3 thin films deposited by RF sputtering
    Goyal, Rajan
    Lamba, S.
    Annapoorni, S.
    PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2016, 213 (05): : 1309 - 1316
  • [39] Electrical and structural properties of nanolaminate (Al2O3/ZrO2/Al2O3) for metal oxide semiconductor gate dielectric applications
    Jeon, S
    Yang, H
    Park, DG
    Hwang, H
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2002, 41 (4B): : 2390 - 2393
  • [40] Magnetorefractive effect in (Co50Fe50)x(Al2O3)1−x granular films
    V. G. Kravets
    A. N. Pogorelyi
    A. F. Kravets
    A. Ya. Vovk
    Yu. I. Dzhezherya
    Physics of the Solid State, 2003, 45 : 1530 - 1536
12345