Abstract
We have measured the temperature dependence of the in-plane thermal conductivity, κab(T), for both Er-Ba-Cu-O and Ho-Ba-Cu-O superconducting bulks. The absolute values of κab(T) for both bulks are smaller than that of Y-Ba-Cu-O bulk, but are larger than that of Dy-Ba-Cu-O bulk, which is known to show an anomalous small κab. κab(T) for Ho-Ba-Cu-O shows a positive slope (dκab/dT>0) in the normal state, similarly to that for Dy-Ba-Cu-O. On the other hand, a slightly negative slope (dκab/ dT<0) is found for Er-Ba-Cu-O. The out-of-plane thermal conductivity, κc, was also measured for Er-Ba-Cu-O bulk, and the anisotropy in the thermal conductivity, (κab/κc), was estimated to be about 2.
| Original language | English |
|---|---|
| Article number | 085001 |
| Journal | Superconductor Science and Technology |
| Volume | 21 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2008 Aug 1 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
Thermal conductivity of Er-Ba-Cu-O and Ho-Ba-Cu-O superconducting bulks. / Naito, Tomoyuki; Fujishiro, Hiroyuki; Iida, Kazumasa; Nariki, Shinya; Murakami, Masato.
In: Superconductor Science and Technology, Vol. 21, No. 8, 085001, 01.08.2008.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thermal conductivity of Er-Ba-Cu-O and Ho-Ba-Cu-O superconducting bulks
AU - Naito, Tomoyuki
AU - Fujishiro, Hiroyuki
AU - Iida, Kazumasa
AU - Nariki, Shinya
AU - Murakami, Masato
PY - 2008/8/1
Y1 - 2008/8/1
N2 - We have measured the temperature dependence of the in-plane thermal conductivity, κab(T), for both Er-Ba-Cu-O and Ho-Ba-Cu-O superconducting bulks. The absolute values of κab(T) for both bulks are smaller than that of Y-Ba-Cu-O bulk, but are larger than that of Dy-Ba-Cu-O bulk, which is known to show an anomalous small κab. κab(T) for Ho-Ba-Cu-O shows a positive slope (dκab/dT>0) in the normal state, similarly to that for Dy-Ba-Cu-O. On the other hand, a slightly negative slope (dκab/ dT<0) is found for Er-Ba-Cu-O. The out-of-plane thermal conductivity, κc, was also measured for Er-Ba-Cu-O bulk, and the anisotropy in the thermal conductivity, (κab/κc), was estimated to be about 2.
AB - We have measured the temperature dependence of the in-plane thermal conductivity, κab(T), for both Er-Ba-Cu-O and Ho-Ba-Cu-O superconducting bulks. The absolute values of κab(T) for both bulks are smaller than that of Y-Ba-Cu-O bulk, but are larger than that of Dy-Ba-Cu-O bulk, which is known to show an anomalous small κab. κab(T) for Ho-Ba-Cu-O shows a positive slope (dκab/dT>0) in the normal state, similarly to that for Dy-Ba-Cu-O. On the other hand, a slightly negative slope (dκab/ dT<0) is found for Er-Ba-Cu-O. The out-of-plane thermal conductivity, κc, was also measured for Er-Ba-Cu-O bulk, and the anisotropy in the thermal conductivity, (κab/κc), was estimated to be about 2.
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U2 - 10.1088/0953-2048/21/8/085001
DO - 10.1088/0953-2048/21/8/085001
M3 - Article
VL - 21
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 8
M1 - 085001
ER -