ID 112428
Author
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
Content Type
Journal Article
Description
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.
Journal Title
Journal of Physics: Conference Series
ISSN
17426588
17426596
NCID
AA12839617
Publisher
IOP Publishing
Volume
871
Start Page
012011
Published Date
2017-07-26
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.
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher
departments
Science and Technology