DIRECT OBSERVATION OF FLUX BEHAVIOR IN HIGH-TC OXIDE SUPERCONDUCTORS USING THE FARADAY-EFFECT OF IRON-GARNET FILMS

被引：32
作者：
GOTOH, S
KOSHIZUKA, N
YOSHIDA, M
MURAKAMI, M
TANAKA, S
机构：
[1] Superconductivity Research Laboratory, ISTEC, Koto-ku, Tokyo, 135, 1-10-13, Shinonome
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1990年 / 29卷 / 07期
关键词：
Faraday effect; Flux gradient; Iron garnet; Pinning force; Residual magnetization; Stripe domain; Yba[!sub]2[!/sub]cu[!sub]3[!/sub]o[!sub]x[!/sub;
D O I：
10.1143/JJAP.29.L1083
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A new direct observation method for the dynamical magnetic flux behavior in superconductors was developed by using the Faraday effect of an iron garnet film with perpendicular magnetization and stripe domains. The domain structure observed optically in the iron garnet film in contact with an YBa2Cu3Ox sample reveals the magnetic field distribution of the latter. It was found that the flux gradient was nonuniform due to the inhomogeneous distribution of fine Y2BaCuO5 inclusions, and the region with the largest pinning force was located in the sample used. © 1990 The Japan Society of Applied Physics.
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收藏
页码：L1083 / L1085
页数：3
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