JOSEPHSON TUNNELING IN BI2SR2CACU2O8+DELTA SINGLE-CRYSTAL BREAK JUNCTIONS

被引：10

作者：

TAO, HJ ^{[1
]}

LU, FR ^{[1
]}

ZHANG, G ^{[1
]}

WOLF, EL ^{[1
]}

机构：

[1] POLYTECH INST NEW YORK,DEPT PHYS,6 METROTECH CTR,BROOKLYN,NY 11201

来源：

PHYSICA C | 1994年 / 224卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(94)90612-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Josephson tunneling I-V characteristics have been observed in break junctions of oxygen-annealed Bi2Sr2CaCu2O8 (Bi-2212) single crystals, with I(c)R(n) almost-equal-to 21.3 MV, and with a sharp quasiparticle edge at 2DELTA almost-equal-to 2 x 20 mV. This demonstrates that low values of the I(c)R(n) product, thus far as observed in HTS thin-film junctions, do not represent a fundamental limitation. The sharp quasiparticle current rise at eV=2DELTA in these SIS break junctions appears to afford an accurate measurement to be made of a well-defined gap edge.

引用

页码：117 / 120

页数：4

共 14 条

[1] AMINOV BA, 1992, SPRINGER P PHYSICS S, V64, P45
[2] BREAK JUNCTION TUNNELING ON BI2SR2CACU2O8+DELTA-SINGLE CRYSTALS
BECHERER, T
KOWALEWSKI, J
SCHMITT, M
HUTH, M
ASSMUS, W
ADRIAN, H
[J]. ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1992, 86 (01): : 23 - 27
[3] TUNNELING SPECTROSCOPY IN BI2SR2CACU2O8 - IS THE ENERGY-GAP ANISOTROPIC
BRICENO, G
ZETTL, A
[J]. SOLID STATE COMMUNICATIONS, 1989, 70 (11) : 1055 - 1058
[4] HASEGAWA T, 1992, PHYSICAL PROPERTIES, V3
[5] ENGINEERING OF ULTRATHIN BARRIERS IN HIGH-TC, TRILAYER JOSEPHSON-JUNCTIONS
KLAUSMEIERBROWN, ME
VIRSHUP, GF
BOZOVIC, I
ECKSTEIN, JN
RALLS, KS
[J]. APPLIED PHYSICS LETTERS, 1992, 60 (22) : 2806 - 2808
[6] ENERGY GAPS AND PHONON STRUCTURES IN TUNNELING SPECTRA OF BI2SR2CA1CU2O8+X AND BI2SR2CA2CU3O10+Y SUPERCONDUCTORS
KOLTUN, R
HOFFMANN, M
SPLITTGERBERHUNNEKES, PC
GUNTHERODT, G
MOSHCHALKOV, VV
LEONYUK, LI
[J]. PHYSICA B, 1990, 165 : 1567 - 1568
[7] GIANT TUNNELING ANISOTROPY IN THE HIGH-TC SUPERCONDUCTOR BI2SR2CACU2O8
MANDRUS, D
FORRO, L
KOLLER, D
MIHALY, L
[J]. NATURE, 1991, 351 (6326) : 460 - 462
[8] FABRICATION OF TLCABACUO STEP-EDGE JOSEPHSON-JUNCTIONS WITH HYSTERETIC BEHAVIOR
MARTENS, JS
HIETALA, VM
ZIPPERIAN, TE
VAWTER, GA
GINLEY, DS
TIGGES, CP
PLUT, TA
HOHENWARTER, GKG
[J]. APPLIED PHYSICS LETTERS, 1992, 60 (08) : 1013 - 1015
[9] ELECTRON-TUNNELING MEASUREMENT OF THE ENERGY-GAP IN A LA-SR-CU-O SUPERCONDUCTOR
MORELAND, J
CLARK, AF
KU, HC
SHELTON, RN
[J]. CRYOGENICS, 1987, 27 (05) : 227 - 228
[10] MORELAND J, 1984, REV SCI INSTRUM, V45, P399

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