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Thermal transport and magnetic properties of GdBa2Cu3O7−y superconductor

✍ Scribed by Katsunori Mori; Koshichi Noto; Masahiro Sasakawa; Yosikazu Isikawa; Kiyoo Sato; Norio Kobayashi; Yoshio Muto

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
142 KB
Volume
153-155
Category
Article
ISSN
0921-4534

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✦ Synopsis

Temperature and magnetic field dependences of the thermal conductivity of a GdBa2Cu307-0 high-To superconductor have been measured between 1.5}( and 7.OK.

It has been found that the thermal conductivity increases around 2.2K, at which the magnetic orderin~ peak is observed in the specific heat measurements. The thermal conductivity is proportional to T ~ above 2.5K and to T 3 below 2.2K. The magnetic field dependence of the thermal conductivity at T=4.41K exhibits a similar behaviour to that of the usual type II superconductor, although the variation is less.

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Magnetic properties and superconductivity of GdBa2(Cu1−xFex)3O7−y
✍ Hajime Shimizu; Ju¯ichiroh Arai; Masaru Mita 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 100 KB

In order to investigate magnetic interaction and its effect on superconductivity in GdBa2(Cu I xFex )307\_v, critical temperature Tc, lattice parameters, d.c. susceptivility, Gd-ESR and Nee] temperature T N are measured. We found that ESR linewidthAHop increases but T N decreases from 2.3 K to 2.0 K