ELECTRIC-FIELD SENSITIVE MOVING HOT-SPOT IN GDBA2CU3O7-DELTA CERAMICS

被引：23
作者：
OKAMOTO, T
HUYBRECHTS, B
TAKATA, M
机构：
[1] Department of Electrical Engineering, Nagaoka University of Technology, Niigata, 940-21
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1994年 / 33卷 / 9A期
关键词：
MOVING HOT SPOT; GDBA2CU3O7-DELTA; JOULE HEATING; OXYGEN DEFECT; OXYGEN ION CONDUCTIVITY; SUPERCONDUCTOR;
D O I：
10.1143/JJAP.33.L1212
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An electric field sensitive moving hot spot appeared on a GdBa2Cu3O7-delta bar with following dimension, 0.65 mm x 0.65 mm x 40 mm, when a de voltage of 7 V was applied at room temperature. The spot moved to the negative electrode, and the direction of movement could be reversed time after time by switching the positive and negative electrode. The average velocity of the hot spot was 1.9 mm/min. The spot size increased with increasing voltage. This phenomenon is believed to be related to the ionic conduction by oxygen.
引用
收藏
页码：L1212 / L1214
页数：3
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