ID 112428
著者
Deguchi, H Kyushu Institute of Technology
Warabino, R Kyushu Institute of Technology
Ka, S Kyushu Institute of Technology
Mito, M Kyushu Institute of Technology
Hagiwara, M Kyoto Institute of Technology
資料タイプ
学術雑誌論文
抄録
The ceramic YBa2Cu4O8 superconductor composed of submicron grains is considered a random Josephson-coupled network containing the so-called π junctions and shows successive phase transitions. With decreasing temperature, first the intragrain superconductive transition occurs inside each grain at Tc1 and then the chiral-glass transition occurs among the grains at Tc2 (< Tc1). The third transition at Tc3 (< Tc2) is the intergrain superconducting transition. We measured the nonlinear susceptibility and resistivity of the ceramic YBa2Cu4O8 superconductor to determine the field dependences of the transition temperatures Tc2 and Tc3. The phase diagram of the intergrain ordering is discussed in light of the result predicted by Kawamura.
掲載誌名
Journal of Physics: Conference Series
ISSN
17426588
17426596
cat書誌ID
AA12839617
出版者
IOP Publishing
871
開始ページ
012011
発行日
2017-07-26
権利情報
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.
EDB ID
343445
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
出版社版
部局
理工学系