Single crystals of MgB2 superconductor grown under high-pressure in Mg-B-N system

S. Lee, A. Yamamoto, H. Mori, Yu Eltsev, T. Masui, S. Tajima

研究成果: Article査読

13 被引用数 (Scopus)

抄録

Here, we report the growth of magnesium diboride (MgB2) single crystals under high-pressure in the Mg-B-N system. The phase stability limit of MgB2 in P-T space was determined and reaction diagram for the crystal growth of MgB2 under high-pressure was proposed. It was found that utilization of longitudinal temperature gradient and optimisation of reactant pellets locations in the BN high-pressure cell is very helpful for reproducible growth of MgB2 single crystals of various shapes and size of 200-700 μm. The high-quality of the samples was confirmed by single crystal X-ray diffraction and sharp superconducting transitions at Tc = 38.1-38.3K obtained in both magnetization (ΔTc = 0.6 K) and resistivity (ΔTc = 0.3 K) measurements.

本文言語English
ページ(範囲)33-37
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
378-381
PART 1
DOI
出版ステータスPublished - 2002 10 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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