| ID | 112427 |
| Author |
Hisada, Akihiko
Tokushima University
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Muranaka, Kie
Tokushima University
Koyama, Kuniyuki
Tokushima University
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Magishi, Ko-ichi
Tokushima University
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Saito, Takahito
Tokushima University
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Hagiwara, Makoto
Kyoto Institute of Technology
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| Content Type |
Journal Article
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| Description | We investigated the effects of oxidation and reduction on the successive superconducting transition in a ceramic material composed of YBa2Cu4O8 (Y124) submicron grains by linear and non-linear resistivity measurements. This material shows two-step superconducting transition and the lower one is identified as an inter-grain ordering. A sintering process fuses and joins the adjacent grains, so the lower transition was suppressed with increasing sintered time. Although Y124 is a stoichiometric ceramic, a reduction treatment suppressed the temperature of zero resistivity and broadened the non-linear resistivity peak. This suggests an oxygen vacancy was induced on the grain surface.
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| Journal Title |
Journal of Physics: Conference Series
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| ISSN | 17426596
17426588
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| NCID | AA12839617
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| Publisher | IOP Publishing
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| Volume | 871
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| Start Page | 012010
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| Published Date | 2017-07-26
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| Rights | Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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| EDB ID | |
| DOI (Published Version) | |
| URL ( Publisher's Version ) | |
| FullText File | |
| language |
eng
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| TextVersion |
Publisher
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| departments |
Science and Technology
Liberal Arts and Sciences
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