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Correlation between Tc and Eu Lattice Vibration in (La1−xEux)2−yCeyCuO4−δ Observed by 151Eu Mössbauer Effect

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Advances in Superconductivity III

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Abstract

The electron doped T’-phase superconductor (La1−xEux)2−yCeyCuO4−δ were studied by X-ray powder diffraction and 151Eu Mössbauer effect. The obtained isomer shift and the Debye temperature showed that Eu is trivalent but OD was smaller than those in the hole-doped superconductors (EuBa2Cu3O7−δ and T*-phase superconductor). With increasing Eu concentration, the lattice constants shortened and Tc increased. Tc enhancement can not be necessarily explained by the change of the lattice constants. A tight correlation between Tc and ΘD was found. We try to explain it using McMillian’s equation.

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Author information

Authors and Affiliations

  1. Muroran Research Laboratory, The Japan Steel Works Ltd., 4 Chatsu-machi, Muroran, 051, Japan

    Hideaki Itoh & Mikio Kusuhashi

  2. Department of Electronic Engineering, Faculty of Engineering, Hokkaido University, Sapporo, 060, Japan

    Masafumi Taniwaki

Authors
  1. Hideaki Itoh
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  2. Mikio Kusuhashi
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  3. Masafumi Taniwaki
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Editor information

Editors and Affiliations

  1. Electrotechnical Laboratory, Umezono, Tsukuba 305, Japan

    Koji Kajimura

  2. School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464, Japan

    Hisao Hayakawa

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© 1991 Springer-Verlag Tokyo

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Itoh, H., Kusuhashi, M., Taniwaki, M. (1991). Correlation between Tc and Eu Lattice Vibration in (La1−xEux)2−yCeyCuO4−δ Observed by 151Eu Mössbauer Effect. In: Kajimura, K., Hayakawa, H. (eds) Advances in Superconductivity III. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68141-0_36

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  • DOI: https://doi.org/10.1007/978-4-431-68141-0_36

  • Publisher Name: Springer, Tokyo

  • Print ISBN: 978-4-431-68143-4

  • Online ISBN: 978-4-431-68141-0

  • eBook Packages: Springer Book Archive

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