Growth of large single crystals using the improved lamp-image floating-zone furnace:: application to La2-xSrxCuO4

被引：32

作者：

Lee, CH

Kaneko, N

Hosoya, S

Kurahashi, K

Wakimoto, S

Yamada, K

Endoh, Y

机构：

[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 98077, Japan

[2] Japan Sci & Technol Corp, CREST, Tokyo, Japan

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1998年 / 11卷 / 09期

关键词：

D O I：

10.1088/0953-2048/11/9/011

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We grew large single crystals of La2-xSrxCuO4 reproducibly over a wide doping range using an improved travelling solvent floating zone (TSFZ) method. We performed a simulation on the lamp-image focusing to find an optimum condition for a steep temperature gradient along the rod. Based on the results of simulation, we adapted smaller lamps and shielded the partial area of the mirror surfaces, The improvement of the focusing had a great effect on keeping the molten zone stable for more than 100 h, Stabilization of the molten zone improves both the reproducibility of the crystal growth and the quality of the grown crystals.

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页码：891 / 897

页数：7

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