Fiske steps in intrinsic Bi2Sr2CaCu2O8+x stacked Josephson junctions

被引:81
作者
Krasnov, VM [1 ]
Mros, N
Yurgens, A
Winkler, D
机构
[1] Chalmers, Dept Phys, S-41296 Gothenburg, Sweden
[2] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia
[3] PL Kapitza Phys Problems Inst, Moscow 117334, Russia
来源
PHYSICAL REVIEW B | 1999年 / 59卷 / 13期
关键词
D O I
10.1103/PhysRevB.59.8463
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Current-voltage characteristics in the c-axis direction were studied experimentally for small-area Bi2Sr2CaCu2O8+x mesas containing only a few intrinsic stacked Josephson junctions. Fiske steps in such junctions were observed. This is direct evidence for the existence of the ac Josephson effect in intrinsic high-T-c Josephson junctions. From observation of a periodic modulation of Fiske step amplitude as a function of magnetic field we obtain that the spacing between intrinsic Josephson junctions, 15.5 Angstrom, is equal to that given by the crystalline structure of Bi2Sr2CaCu2O8+x. [S0163-1829(99)04813-4].
引用
收藏
页码:8463 / 8466
页数:4
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