Preparation of YBa2Cu4O8 single crystals in Y2O3 crucible using O2-HIP apparatus

被引：26

作者：

Adachi, S

Nakanishi, K

Tanabe, K

Nozawa, K

Takagi, H

Hu, WZ

Izumi, M

机构：

[1] ISTEC, Superconduct Res Lab, Koto Ku, Tokyo 135, Japan

[2] Univ Tokyo, Inst Solid State Phys, Minato Ku, Tokyo 106, Japan

[3] Tokyo Univ Mercantile Marine, Appl Phys Lab, Koto Ku, Tokyo 135, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1998年 / 301卷 / 3-4期

关键词：

YBa2Cu4O8; single crystal; HIP; Y2O3; crucible; structural property; fish-tail;

D O I：

10.1016/S0921-4534(98)00135-X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

YBa2Cu4O8 (Y-124) single crystals were grown by a self-flux method in a high-pressure gas mixture of 80% Ar-20% O-2. The calcined powder mixture of Y-Ba-Cu-O at a ratio of Y:Ba:Cu = 1:8:20 was charged in a Y2O3 crucible and put into an O-2-HIP (hot isostatic pressing) apparatus. The heat-treatment at similar to 1150 degrees C under similar to 2000 atm was carried out. YBa2Cu4O8 single crystals with typical size of similar to 0.1 X 0.2 x 0.05 mm(3) were obtained. The crystals exhibited a quite sharp superconducting transition at around 80 K. X-ray diffraction studies on the obtained crystals revealed that there are no stacking faults and the crystal has the lattice parameters similar to those reported for powder samples prepared in a high-pressure oxygen gas. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：123 / 128

页数：6

共 25 条

[1] STRUCTURAL AND SUPERCONDUCTING PROPERTIES OF (Y/PR)BA2CU4O8 PREPARED BY USING O-2-HIP TECHNIQUE [J].