OBSERVATION OF A-B PLANE GAP ANISOTROPY IN BI2SR2CACU2O8 WITH A LOW-TEMPERATURE SCANNING TUNNELING MICROSCOPE

被引：83
|
作者：
KANE, J [1 ]
CHEN, Q [1 ]
NG, KW [1 ]
TAO, HJ [1 ]
机构：
[1] CHINESE ACAD SCI,INST PHYS,BEIJING,PEOPLES R CHINA
来源：
PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 01期
关键词：
D O I：
10.1103/PhysRevLett.72.128
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Significant gap anisotropy within the a-b plane of Bi2Sr2CaCu2O8 has been observed with a low temperature scanning tunneling microscope. The energy gap is largest along the a-axis direction, with DELTA(p-p) = 36.6 meV and decreases gradually to a value of 23 meV along the direction 45-degrees from the a axis. The tunneling data have been fit well using a simple model which assumes a d-wave-pairing energy gap, and allows tunneling in all directions close to the normal of the surface.
引用
收藏
页码：128 / 131
页数：4
相关论文
共 50 条
  • [31] The dx(2)-y(2)-wave superconducting gap in Bi2Sr2CaCu2O8:: scanning tunnelling microscope spectroscopy
    Suzuki, K
    Ichimura, K
    Nomura, K
    Takekawa, S
    JOURNAL OF PHYSICS-CONDENSED MATTER, 1999, 11 (15) : 3133 - 3139
  • [32] GIANT TUNNELING ANISOTROPY IN THE HIGH-TC SUPERCONDUCTOR BI2SR2CACU2O8
    MANDRUS, D
    FORRO, L
    KOLLER, D
    MIHALY, L
    NATURE, 1991, 351 (6326) : 460 - 462
  • [33] Tunneling Conductance Dependence of the Tunneling Spectra in Bi2Sr2CaCu2O8
    H. Sakata
    A. Katagiri
    M. Yokoi
    T. Kato
    H. Morimoto
    Journal of Low Temperature Physics, 2003, 131 : 275 - 279
  • [34] Tunneling conductance dependence of the tunneling spectra in Bi2Sr2CaCu2O8
    Sakata, H
    Katagiri, A
    Yokoi, M
    Kato, T
    Morimoto, H
    JOURNAL OF LOW TEMPERATURE PHYSICS, 2003, 131 (3-4) : 275 - 279
  • [35] PHONON STRUCTURE IN THE TUNNELING CONDUCTANCE OF BI2SR2CACU2O8
    SHIMADA, D
    SHIINA, Y
    MOTTATE, A
    OHYAGI, Y
    TSUDA, N
    PHYSICAL REVIEW B, 1995, 51 (22): : 16495 - 16498
  • [36] Phonon structure in the tunneling conductance of Bi2Sr2CaCu2O8
    Shimada, D
    Saitoh, M
    Tsuda, N
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2003, 388 : 287 - 288
  • [37] Tunneling spectroscopy of Bi2Sr2CaCu2O8 single crystals
    Vedeneev, SI
    Jansen, AGM
    Wyder, P
    PHYSICA B, 1996, 218 (1-4): : 213 - 216
  • [38] a-b plane microwave surface impedance of a high-quality Bi2Sr2CaCu2O8 single crystal
    Lee, SF
    Morgan, DC
    Ormeno, RJ
    Broun, DM
    Doyle, RA
    Waldram, JR
    Kadowaki, K
    PHYSICAL REVIEW LETTERS, 1996, 77 (04) : 735 - 738
  • [39] Tunneling study of underdoped and overdoped Bi2Sr2CaCu2O8
    Oki, T
    Tsuda, N
    Shimada, D
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2000, 341 : 913 - 914
  • [40] a-b plane microwave surface impedance of a high-quality Bi2Sr2CaCu2O8 single crystal
    Univ of Cambridge, Cambridge, United Kingdom
    Phys Rev Lett, 4 (735-738):
12345