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

doi:10.1016/S0921-4534(02)01377-1

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

14 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 T_c = 38.1-38.3K obtained in both magnetization (ΔT_c = 0.6 K) and resistivity (ΔT_c = 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
巻	378-381
号	PART 1
DOI	https://doi.org/10.1016/S0921-4534(02)01377-1
出版ステータス	Published - 2002 10月 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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10.1016/S0921-4534(02)01377-1

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引用スタイル

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title = "Single crystals of MgB2 superconductor grown under high-pressure in Mg-B-N system",

abstract = "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.",

keywords = "High-pressure, Mg-B-N system, MgB, Single crystal growth",

author = "S. Lee and A. Yamamoto and H. Mori and Yu Eltsev and T. Masui and S. Tajima",

note = "Funding Information: This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.",

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T1 - Single crystals of MgB2 superconductor grown under high-pressure in Mg-B-N system

AU - Lee, S.

AU - Yamamoto, A.

AU - Mori, H.

AU - Eltsev, Yu

AU - Masui, T.

AU - Tajima, S.

N1 - Funding Information: This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - 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.

AB - 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.

KW - High-pressure

KW - Mg-B-N system

KW - MgB

KW - Single crystal growth

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JO - Physica C: Superconductivity and its Applications

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