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

Research output: Contribution to journalArticle

12 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)33-37
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume378-381
Issue numberPART 1
DOIs
Publication statusPublished - 2002 Oct 1
Externally publishedYes

Keywords

  • High-pressure
  • Mg-B-N system
  • MgB
  • Single crystal growth

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Single crystals of MgB<sub>2</sub> superconductor grown under high-pressure in Mg-B-N system'. Together they form a unique fingerprint.

  • Cite this