Magnetic Alignment in REBa2Cu3-xCoxOy Compounds

被引：2

作者：

Horii, S. ^{[1
]}

Ugawa, T. ^{[1
]}

Haruta, M. ^{[1
]}

Ishihara, A. ^{[2
]}

Shimoyama, J. ^{[2
]}

机构：

[1] Kochi Univ Technol, Dept Environm Syst Engn, Kami, Kochi 7828502, Japan

[2] Univ Tokyo, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2013年 / 23卷 / 03期

关键词：

Cobalt-doping; magnetic alignment; modulated rotation field; REBa2Cu3Oy; static field; YBA2CU3O7-DELTA;

D O I：

10.1109/TASC.2012.2236375

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The effects of doping of the cobalt ion on magnetic anisotropy in twinned and orthorhombic YBa2Cu3Oy (Y123) were clarified from their magnetic alignment behaviors under a modulated rotating field of 10 T. The cobalt-free Y123 shows two different types of inplane orientation due to the twin microstructure, and the cobalt-doping induced a structural change into a tetragonal phase and conversion of the magnetic hard axis from the b-axis ([100] grain) into a [110] direction ([110] grain). Furthermore, magnetic alignment under a modulated rotating field of 5 T revealed that the inplane magnetic anisotropy of the [110] grains is superior to that of the [100] grain. It is likely that crystallochemical control at the chain site in Y123 promotes the bi-axial orientation using the [110] grains as a grain alignment type for the bi-axial magnetic alignment of twined Y123.

引用

页数：4

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