SQUID microscopy for fundamental studies

被引:27
作者
Kirtley, JR [1 ]
机构
[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA
来源
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 368卷 / 1-4期
关键词
magnetic imaging; scanning SQUID microscope; tricrystal; pairing symmetry; Josephson vortex; interlayer tunneling model; fractionalization; vison; nanoparticles;
D O I
10.1016/S0921-4534(01)01140-6
中图分类号
O59 [应用物理学];
学科分类号
摘要
The scanning SQUID microscope has proved to be a valuable tool for the study of fundamental properties of solid state systems. It has the advantages of high magnetic field sensitivity, a linear, easily calibrated response over a huge dynamic range, and uses sensors which (at least for the low-T-c SQUIDs) incorporate a mature technology. It has the disadvantages of the requirement of a cooled sensor and modest spatial resolution. I will briefly describe the current status and potential advances in this instrument, and then discuss some example fundamental applications. These examples include pairing symmetry tests, tests of the interlayer tunneling model for the pairing mechanism, the search for 'visons', and evidence for a precursor to superconductivity well above T-c, all in the high-T-c cuprate superconductors; and measurements of the properties of very small magnetic particles. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:55 / 65
页数:11
相关论文
共 78 条
  • [1] THE RESONATING VALENCE BOND STATE IN LA2CUO4 AND SUPERCONDUCTIVITY
    ANDERSON, PW
    [J]. SCIENCE, 1987, 235 (4793) : 1196 - 1198
  • [2] Superconducting gap anisotropy in Nd1.85Ce0.15CuO4:: Results from photoemission
    Armitage, NP
    Lu, DH
    Feng, DL
    Kim, C
    Damascelli, A
    Shen, KM
    Ronning, F
    Shen, ZX
    Onose, Y
    Taguchi, Y
    Tokura, Y
    [J]. PHYSICAL REVIEW LETTERS, 2001, 86 (06) : 1126 - 1129
  • [3] BAUDENBACHER FJ, 2000, B AM PHYS SOC, V45, P651
  • [4] BJORNSSON PG, IN PRESS REV SCI INS
  • [5] MAGNETIC MICROSCOPY USING A LIQUID-NITROGEN COOLED YBA2CU3O7 SUPERCONDUCTING QUANTUM INTERFERENCE DEVICE
    BLACK, RC
    MATHAI, A
    WELLSTOOD, FC
    DANTSKER, E
    MIKLICH, AH
    NEMETH, DT
    KINGSTON, JJ
    CLARKE, J
    [J]. APPLIED PHYSICS LETTERS, 1993, 62 (17) : 2128 - 2130
  • [6] BONN DA, IN PRESS
  • [7] EVIDENCE FOR AN UNCONVENTIONAL SUPERCONDUCTING ORDER-PARAMETER IN YBA2CU3O6.9
    BRAWNER, DA
    OTT, HR
    [J]. PHYSICAL REVIEW B, 1994, 50 (09): : 6530 - 6533
  • [8] Buchanan D. S., 1990, ADV BIOMAGNETISM, P677
  • [9] BULAEVSKII LN, 1977, JETP LETT+, V25, P290
  • [10] Order parameter phase sensitive experiments and SDJ dc SQUIDs
    Chesca, B
    Kleiner, R
    [J]. PHYSICA C, 2001, 357 (357-360): : 1561 - 1566