Magnetic levitation with high-Tc superconducting thin films

被引：12
|
作者：
Johansen, TH [1 ]
Riise, AB
Bratsberg, H
Shen, YQ
机构：
[1] Univ Oslo, Dept Phys, N-0316 Oslo 3, Norway
[2] NKT Res Ctr, DK-2605 Brondby, Denmark
来源：
JOURNAL OF SUPERCONDUCTIVITY | 1998年 / 11卷 / 05期
关键词：
HTSC thin film; levitation force; magnetic stiffness;
D O I：
10.1023/A:1022618825582
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The levitation force between a permanent magnet and a superconducting thin film was investigated experimentally. The configuration consisted of a cylindrical NdFeB permanent magnet placed above a circular YBa2Cu3O7-delta disk with common cylinder axis. Precise measurements were made of the vertical force F-z and the magnetic stiffness kappa(z) as a function of the magnet-superconductor separation at 77 K. Several features contrasting the levitation force produced using bulk superconductors were observed. Thin films produced very high values for F-z and kappa(z) per unit volume of superconducting material. The hysteretic behavior of F-z during decreasing and increasing separation resulted in loops of nearly symmetrical shape, which also contain a peak in the repulsive force branch. The observations are analyzed and explained with good quantitative agreement using recent theories for flux penetration in thin superconductors in transverse magnetic fields.
引用
收藏
页码：519 / 524
页数：6
相关论文
共 50 条
  • [21] LASER PROBING OF HIGH-TC SUPERCONDUCTING THIN-FILMS
    DIVIN, YY
    NAD, FY
    POKROVSKI, VY
    SHADRIN, PM
    IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (02) : 1101 - 1104
  • [22] PLASMA OXIDATION OF HIGH-TC SUPERCONDUCTING THIN-FILMS
    HABERMEIER, HU
    EBERT, W
    KALT, S
    WAGNER, G
    MERTENS, G
    JOURNAL OF THE LESS-COMMON METALS, 1989, 151 (1-2): : 257 - 262
  • [23] Current status of development of high-Tc superconducting thin films
    Yazu, Syuji
    Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, 1988, 35 (09): : 835 - 840
  • [24] LASER PROCESSING OF HIGH-TC SUPERCONDUCTING THIN-FILMS
    VENKATESAN, T
    WU, XD
    INAM, A
    CHANG, CC
    HEGDE, MS
    DUTTA, B
    IEEE JOURNAL OF QUANTUM ELECTRONICS, 1989, 25 (11) : 2388 - 2393
  • [25] HIGH-TC SUPERCONDUCTING THIN-FILMS FOR MICROWAVE APPLICATIONS
    WITHERS, RS
    ANDERSON, AC
    OATES, DE
    SOLID STATE TECHNOLOGY, 1990, 33 (08) : 83 - 87
  • [26] STUDY OF HIGH-TC SUPERCONDUCTING YBACUO THIN-FILMS
    ZHENG, JQ
    ZHENG, GG
    LI, DQ
    WANG, W
    XUE, JM
    CUI, YD
    XIAO, DG
    CAO, L
    GUAN, WY
    SOLID STATE COMMUNICATIONS, 1988, 65 (01) : 59 - 61
  • [27] MICROWAVE DETECTION WITH HIGH-TC SUPERCONDUCTING THIN-FILMS
    ZAQUINE, I
    MAGE, JC
    MARCILHAC, B
    DIEUMEGARD, D
    IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (02) : 2507 - 2511
  • [28] Analysis of the noise voltage in high-Tc superconducting thin films
    Labrag, A.
    Bghour, M.
    Abaragh, A.
    Bouaaddi, A.
    Ramzi, A.
    Taoufik, A.
    Senoussi, S.
    Tirbiyine, A.
    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 9, 2006, 3 (09): : 3090 - +
  • [29] Development of a High-Tc Superconducting Levitation Synchronous Motor
    Murakami, Iwanori
    Mutsuura, Yuusuke
    Tomaru, Syun
    Goto, Yoshitaka
    Ando, Yoshinori
    Yamada, Kou
    ICIEA: 2009 4TH IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS, VOLS 1-6, 2009, : 1200 - 1205
  • [30] Surface acoustic waves in high-Tc superconducting thin films
    Akinaga, M.
    Ohkubo, H.
    Fukami, T.
    Aomine, T.
    Physica B: Condensed Matter, 1996, 219-220 (1-4): : 175 - 178
12345