Periodic oscillations of Josephson-vortex flow resistance in oxygen-deficient YBa2Cu3Ox

被引：19
|
作者：
Nagao, M.
Urayama, S.
Kim, S. M.
Wang, H. B.
Yun, K. S.
Takano, Y.
Hatano, T.
Iguchi, I.
Yamashita, T.
Tachiki, M.
Maeda, H.
Sato, M.
机构：
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
[2] Kitami Inst Technol, Kitami, Hokkaido 0908507, Japan
来源：
PHYSICAL REVIEW B | 2006年 / 74卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.74.054502
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We measured the Josephson vortex flow resistance as a function of magnetic field applied parallel to the ab planes using annealed YBa2Cu3Ox intrinsic Josephson junctions having high anisotropy (similar to 40) by oxygen content reduction. Periodic oscillations were observed in magnetic fields above 45-58 kOe, corresponding to dense-dilute boundary for Josephson vortex lattice. The observed period of oscillations, which agrees well with the increase of one fluxon per two junctions (H-p=Phi(0)/2Ls), may correspond to formation of a triangular lattice of Josephson vortices as has been reported by Ooi for highly anisotropic (>= 200) Bi-2212 intrinsic Josephson junctions.
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页数：5
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