Existence of the Minimum Coefficient in Temperature Linear Term of Heat Capacity in Superconducting (La<SUB>1−<I>x</I></SUB>Ba<I><SUB>x</SUB></I>)<SUB>2</SUB>CuO<SUB>4</SUB>
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- Kobayashi Tatsuo
- Department of Material Physics, Faculty of Engineering Science, Osaka University
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- Kumayasu Satoshi
- Department of Material Physics, Faculty of Engineering Science, Osaka University
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- Amaya Kiichi
- Department of Material Physics, Faculty of Engineering Science, Osaka University
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- Ishida Kenji
- Department of Material Physics, Faculty of Engineering Science, Osaka University
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- Kitaoka Yoshio
- Department of Material Physics, Faculty of Engineering Science, Osaka University
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- Asayama Kunisuke
- Department of Material Physics, Faculty of Engineering Science, Osaka University
Bibliographic Information
- Other Title
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- Existence of the Minimum Coefficient in Temperature Linear Term of Heat Capacity in Superconducting(La1-xBax)2CuO4
- Existence of the Minimum Coefficient in
- Existence of the Minimum Coefficient in Temperature Linear Term of Heat Capacity in Superconducting (La<sub>1-<i>x</i></sub>Ba<sub><i>x</i></sub>)<sub>2</sub>CuO<sub>4</sub>
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Abstract
In high-Tc superconductors (La1−xMx)2CuO4 (M=Ba, Sr), it has been reported that the heat capacity has a nonzero coefficient γ in the temperature linear term. We investigated the detailed dependence of γ on Ba doping. It was confirmed that γ becomes zero for undoped La2CuO4. With increasing Ba concentration x, γ increases markedly up to x=0.02 where the magnetic order almost disappears, while it decreases as superconductivity starts to appear and then has a minimum around x=0.04. With further increasing x, γ increases again. These results may be due to a combined effect of two different contributions to γ.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 57 (7), 2261-2263, 1988
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390001204186540416
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- NII Article ID
- 210000094064
- 110001968227
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- NII Book ID
- AA00704814
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- BIBCODE
- 1988JPSJ...57.2261K
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- COI
- 1:CAS:528:DyaL1cXltlKiurk%3D
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- ISSN
- 13474073
- 00319015
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- NDL BIB ID
- 3191104
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed