Microstructure and electrical properties of CoNX thin films deposited by unbalanced magnetron sputtering

被引:22
作者
Asahara, H [1 ]
Migita, T [1 ]
Tanaka, T [1 ]
Kawabata, K [1 ]
机构
[1] Hiroshima Inst Technol, Dept Elect, Saeki Ku, Hiroshima 7315193, Japan
关键词
cobalt nitride; magnetron sputtering; sputtering; multipolar magnetic plasma confinement; nanocomposite;
D O I
10.1016/S0042-207X(00)00453-X
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The structure and electrical properties of cobalt nitride (CoNX) thin films, prepared by newly developed r.f. reactive sputtering with magnetically enhanced ionization by means of multipolar magnetic plasma confinement (MMPC), were studied. In an unbalanced magnetron sputtering system with MMPC, ferromagnetic materials can be sputtered at a low gas pressure (8.0 x 10(-2) Pa). It was found that lowering the total gas pressure (Ar + N-2) down to 8.0 x 10(-2) Pa resulted in a decrease in the resistivity of the films, whose value is about 10 mu Omega cm. The average size of the grain decreased with a decrease in the total gas pressure. Nanocomposite films of cobalt nitride with an average grain size of about 5 nm were formed by lowering the total gas pressure. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:293 / 296
页数:4
相关论文
共 11 条
  • [1] GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES
    BAIBICH, MN
    BROTO, JM
    FERT, A
    VANDAU, FN
    PETROFF, F
    EITENNE, P
    CREUZET, G
    FRIEDERICH, A
    CHAZELAS, J
    [J]. PHYSICAL REVIEW LETTERS, 1988, 61 (21) : 2472 - 2475
  • [2] SPUTTERING SYSTEMS WITH MAGNETICALLY ENHANCED IONIZATION FOR ION PLATING OF TIN FILMS
    KADLEC, S
    MUSIL, J
    MUNZ, WD
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 1990, 8 (03): : 1318 - 1324
  • [3] RESIDUAL-STRESSES AND FRACTURE PROPERTIES OF MAGNETRON-SPUTTERED TI FILMS ON SI MICROELEMENTS
    LJUNGCRANTZ, H
    HULTMAN, L
    SUNDGREN, JE
    JOHANSSON, S
    KRISTENSEN, N
    SCHWEITZ, JA
    SHUTE, CJ
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1993, 11 (03): : 543 - 553
  • [4] Ferromagnetic nanocomposite films of cobalt in a ceramic matrix formed by thermal decomposition of cobalt nitride, CoN, precursor
    Maya, L
    Paranthaman, M
    Thompson, JR
    Thundat, T
    Stevenson, RJ
    [J]. JOURNAL OF APPLIED PHYSICS, 1996, 79 (10) : 7905 - 7910
  • [5] Sputtered Cu/Co films for giant magnetoresistance: Effect of plasma gas and annealing treatment
    Maya, L
    Paranthaman, M
    List, FA
    Warmack, RJ
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1997, 15 (05): : 2807 - 2811
  • [6] PREPARATION OF CO-N FILMS BY RF-SPUTTERING
    ODA, K
    YOSHIO, T
    ODA, K
    [J]. JOURNAL OF MATERIALS SCIENCE, 1987, 22 (08) : 2729 - 2733
  • [7] OSCILLATIONS IN GIANT MAGNETORESISTANCE AND ANTIFERROMAGNETIC COUPLING IN [NI81FE19/CU]N MULTILAYERS
    PARKIN, SSP
    [J]. APPLIED PHYSICS LETTERS, 1992, 60 (04) : 512 - 514
  • [8] PROPERTIES OF CO-N, CO-FE-N, AND CO-ZR-N FILMS PREPARED BY RF-SPUTTERING IN NITROGEN-ARGON GAS-MIXTURES
    SHIH, KK
    KARASINSKI, J
    [J]. JOURNAL OF APPLIED PHYSICS, 1993, 73 (12) : 8377 - 8380
  • [9] CRYSTAL-STRUCTURE AND MAGNETIC-PROPERTIES OF THE COMPOUND FEN
    SUZUKI, K
    MORITA, H
    KANEKO, T
    YOSHIDA, H
    FUJIMORI, H
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1993, 201 : 11 - 16
  • [10] Preparation of Co and CoNx thin films by unbalanced radio frequency magnetron sputtering
    Tanaka, T
    Kawabata, K
    Kitabatake, A
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 2000, 18 (04): : 1649 - 1652