Insulator-superconductor transition in 3D granular Al-Ge films

被引：136
|
作者：
Gerber, A
Milner, A
Deutscher, G
Karpovsky, M
Gladkikh, A
机构：
[1] Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics and Astronomy, Tel Aviv University, Tel Aviv, 69978, Ramat Aviv
来源：
PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 22期
关键词：
D O I：
10.1103/PhysRevLett.78.4277
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report the results of high magnetic field study of granular 3D Al-Ge and demonstrate that intragranular superconductivity leads in truly insulating samples (with an exponentially diverging normal state resistivity), either to a global superconducting phase coherent state, or to a ''superconductor-insulator'' state with Cooper pairs totally localized within individual grains, depending on the strength of the intergranular Josephson coupling.
引用
收藏
页码：4277 / 4280
页数：4
相关论文
共 50 条
  • [1] Insulator-superconductor transition in 3D granular Al-Ge films
    Phys Rev Lett, 22 (4277):
  • [2] Granular insulator-superconductor transition in ultrathin Bi films
    Sambandamurthy, G
    Das Gupta, K
    Chandrasekhar, N
    SOLID STATE COMMUNICATIONS, 2001, 118 (08) : 431 - 436
  • [3] SEMICONDUCTOR-SUPERCONDUCTOR TRANSITION IN GRANULAR AL-GE
    SHAPIRA, Y
    DEUTSCHER, G
    PHYSICAL REVIEW B, 1983, 27 (07): : 4463 - 4466
  • [4] RESISTIVITY AND MAGNETORESISTIVITY NEAR THE METAL-INSULATOR AND SUPERCONDUCTOR-INSULATOR TRANSITION IN GRANULAR AL-GE
    EYTAN, G
    ZAKEN, E
    ROSENBAUM, R
    MCLACHLAN, DS
    ALBERS, A
    PHYSICA A, 1994, 207 (1-3): : 240 - 244
  • [5] RESISTIVITY AND MAGNETORESISTIVITY MEASUREMENTS NEAR THE METAL-INSULATOR AND SUPERCONDUCTOR-INSULATOR TRANSITION IN GRANULAR AL-GE
    EYTAN, G
    ZAKEN, E
    ROSENBAUM, R
    MCLACHLAN, DS
    ALBERS, A
    PHYSICA B, 1994, 194 (pt 2): : 2419 - 2420
  • [6] RESISTIVITY AND MAGNETORESISTIVITY MEASUREMENTS NEAR THE METAL-INSULATOR AND SUPERCONDUCTOR-INSULATOR TRANSITION IN GRANULAR AL-GE
    EYTAN, G
    ROSENBAUM, R
    MCLACHLAN, DS
    ALBERS, A
    PHYSICAL REVIEW B, 1993, 48 (09): : 6342 - 6352
  • [7] SUPERCONDUCTING FLUCTUATION CONDUCTIVITY IN GRANULAR AL-GE FILMS ABOVE THE METAL-INSULATOR-TRANSITION
    ZAKEN, E
    ROSENBAUM, R
    JOURNAL OF PHYSICS-CONDENSED MATTER, 1994, 6 (46) : 9981 - 10000
  • [8] The metal-insulator transition in 'random' Al-Ge films
    Rosenbaum, R
    Goldner, V
    Shoshany, J
    McLachlan, DS
    Witcomb, M
    CZECHOSLOVAK JOURNAL OF PHYSICS, 1996, 46 : 2427 - 2428
  • [9] LOW-FIELD MAGNETORESISTANCE IN GRANULAR PB FILMS NEAR THE INSULATOR-SUPERCONDUCTOR TRANSITION
    BARBER, RP
    DYNES, RC
    PHYSICAL REVIEW B, 1993, 48 (14): : 10618 - 10621
  • [10] Effect of granularity on the insulator-superconductor transition in ultrathin Bi films
    Sambandamurthy, G
    Das Gupta, K
    Chandrasekhar, N
    PHYSICAL REVIEW B, 2001, 64 (01)
12345