Epitaxial Growth of Superconducting Eu2-xCexCuO4 Thin Films

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概要

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• We have grown ($00l$)-oriented thin films of Eu2-xCexCuO4 on (001) SrTiO3 with cerium composition in the range $0\leq x\leq 0.22$ by reactive molecular beam epitaxy and characterized them by X-ray diffraction and transport measurements. A systematic change in the $c$-axis length upon cerium doping was observed indicating that single-phase films were obtained for the whole doping range up to the solubility limit at $x=0.22$. Superconductivity appeared within a cerium concentration of $0.14\leq x\leq 0.19$. Compared to other electron doped cuprates, the superconducting phase space and maximal critical temperature is reduced, and the point of optimal doping is shifted to a higher doping level.

• 2008-08-25

著者

• Naito Michio

  Tokyo University Of Agriculture And Technology

• Krockenberger Yoshiharu

  Darmstadt University of Technology, Petersenstr. 23, D-64287 Darmstadt, Germany

• Naito Michio

  Tokyo University of Agriculture and Technology (TUAT), 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan

• Kurian Jose

  Darmstadt University of Technology, Petersenstr. 23, D-64287 Darmstadt, Germany

• Alff Lambert

  Darmstadt University of Technology, Petersenstr. 23, D-64287 Darmstadt, Germany

関連論文

• All MgB_2 Josephson Junctions with Amorphous Boron Barriers
• Epitaxial Growth of Superconducting Eu2-xCexCuO4 Thin Films

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