Single crystal growth and physical properties of carbon-substituted YBa2Cu3O7-δ

H. Uchiyama, N. Matsukura, Masato Murakami, S. Tajima

研究成果: Article

抄録

Single crystals of C-substituted YBa2Cu3O 7-δ (C-YBCO) were prepared by changing atmosphere in a growing process. With increasing the CO2 concentration in the atmosphere, the carbon content in a crystal increases, and the c-axis length decreases. From the Tc change under various annealing conditions and the magnetic susceptibility results, it was found that C-YBCO does not enter the carrier-overdoped region, while the non-substituted samples can. It suggests that the carbon substitution disturbs the oxygen diffusion, resulting in a suppression of carrier doping.

元の言語English
ページ(範囲)2840-2843
ページ数4
ジャーナルPhysica Status Solidi (C) Current Topics in Solid State Physics
3
発行部数8
DOI
出版物ステータスPublished - 2006

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crystal growth
physical properties
atmospheres
carbon
single crystals
retarding
substitutes
magnetic permeability
annealing
oxygen
crystals

ASJC Scopus subject areas

  • Condensed Matter Physics

これを引用

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AU - Murakami, Masato

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AB - Single crystals of C-substituted YBa2Cu3O 7-δ (C-YBCO) were prepared by changing atmosphere in a growing process. With increasing the CO2 concentration in the atmosphere, the carbon content in a crystal increases, and the c-axis length decreases. From the Tc change under various annealing conditions and the magnetic susceptibility results, it was found that C-YBCO does not enter the carrier-overdoped region, while the non-substituted samples can. It suggests that the carbon substitution disturbs the oxygen diffusion, resulting in a suppression of carrier doping.

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