Anisotropic thermal conductivity of Er-Ba-Cu-O bulk superconductors

T. Naito; H. Fujishiro; K. Iida; M. Murakami

doi:10.1016/j.physc.2008.05.262

Anisotropic thermal conductivity of Er-Ba-Cu-O bulk superconductors

T. Naito, H. Fujishiro, K. Iida, M. Murakami

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We have measured the temperature dependences of the thermal conductivity in the ab-plane, κ_ab(T), and along the c-axis, κ_c(T), respectively, for the Er-Ba-Cu-O bulk superconductors, which were fabricated by a method of the melt texture growth. Above the critical temperature T_c, the κ_ab decreases quite moderately as increasing temperature or is almost independent of the temperature. Below the T_c, the well-known enhancement is observed but is relatively small. The κ_c(T) shows the small absolute values and we found that the anisotropy of the thermal conductivity (κ_ab/κ_c) for Er-Ba-Cu-O bulks is of about 2-6.

Original language	English
Pages (from-to)	1428-1430
Number of pages	3
Journal	Physica C: Superconductivity and its applications
Volume	468
Issue number	15-20
DOIs	https://doi.org/10.1016/j.physc.2008.05.262
Publication status	Published - 2008 Sept 15

Keywords

Anisotropy
Er-Ba-Cu-O bulk superconductors
Thermal conductivity

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2008.05.262

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title = "Anisotropic thermal conductivity of Er-Ba-Cu-O bulk superconductors",

abstract = "We have measured the temperature dependences of the thermal conductivity in the ab-plane, κab(T), and along the c-axis, κc(T), respectively, for the Er-Ba-Cu-O bulk superconductors, which were fabricated by a method of the melt texture growth. Above the critical temperature Tc, the κab decreases quite moderately as increasing temperature or is almost independent of the temperature. Below the Tc, the well-known enhancement is observed but is relatively small. The κc(T) shows the small absolute values and we found that the anisotropy of the thermal conductivity (κab/κc) for Er-Ba-Cu-O bulks is of about 2-6.",

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author = "T. Naito and H. Fujishiro and K. Iida and M. Murakami",

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TY - JOUR

T1 - Anisotropic thermal conductivity of Er-Ba-Cu-O bulk superconductors

AU - Naito, T.

AU - Fujishiro, H.

AU - Iida, K.

AU - Murakami, M.

PY - 2008/9/15

Y1 - 2008/9/15

N2 - We have measured the temperature dependences of the thermal conductivity in the ab-plane, κab(T), and along the c-axis, κc(T), respectively, for the Er-Ba-Cu-O bulk superconductors, which were fabricated by a method of the melt texture growth. Above the critical temperature Tc, the κab decreases quite moderately as increasing temperature or is almost independent of the temperature. Below the Tc, the well-known enhancement is observed but is relatively small. The κc(T) shows the small absolute values and we found that the anisotropy of the thermal conductivity (κab/κc) for Er-Ba-Cu-O bulks is of about 2-6.

AB - We have measured the temperature dependences of the thermal conductivity in the ab-plane, κab(T), and along the c-axis, κc(T), respectively, for the Er-Ba-Cu-O bulk superconductors, which were fabricated by a method of the melt texture growth. Above the critical temperature Tc, the κab decreases quite moderately as increasing temperature or is almost independent of the temperature. Below the Tc, the well-known enhancement is observed but is relatively small. The κc(T) shows the small absolute values and we found that the anisotropy of the thermal conductivity (κab/κc) for Er-Ba-Cu-O bulks is of about 2-6.

KW - Anisotropy

KW - Er-Ba-Cu-O bulk superconductors

KW - Thermal conductivity

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JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 15-20

ER -

Anisotropic thermal conductivity of Er-Ba-Cu-O bulk superconductors

Abstract

Keywords

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