HALL-EFFECT OF AN ORIENTED SUPERCONDUCTING YBA2CU3OY FILM

被引：0
|
作者：
HE, ZH
SHA, J
WANG, SX
CHENG, XA
ZHOU, G
ZHANG, Q
SHI, WZ
YAO, WG
QI, ZZ
机构：
[1] UNIV SCI & TECHNOL CHINA,DEPT PHYS,HEFEI 230026,PEOPLES R CHINA
[2] UNIV SCI & TECHNOL CHINA,STRUCT RES LAB,HEFEI 230026,PEOPLES R CHINA
[3] ZHEJIANG UNIV,DEPT PHYS,HANGZHOU 310027,PEOPLES R CHINA
[4] ZHONGSHAN UNIV,DEPT PHYS,CANTON 510275,PEOPLES R CHINA
[5] ACAD SINICA,INST SOLID STATE PHYS,HEFEI 230031,PEOPLES R CHINA
来源：
CHINESE PHYSICS LETTERS | 1991年 / 8卷 / 10期
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A superconducting YBa2Cu3Oy thin film, which is well oriented at (001) direction and in which no grain boundary is observed in the resolution limit of scanning electron microscope micrograph, is selected for the Hall effect measurement from 80 to 220 K under a magnetic field of 3 T. A very narrow and negative peak of the Hall voltage (V(H)) is found in the superconducting transition region. A linear dependence of the carrier concentration (n(H)) on temperature is found in the normal state. The appearance of such a negative peak is attributed to the intrinsic anisotropy of the Hall coefficient (R(H)) related to the direction of the applied field and current.
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页码：541 / 543
页数：3
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