Ab initio calculations of superconductivity in palladium under pressure

• Takezawa, Tomoki

• Nagara, Hitose

• Suzuki, Naoshi

抄録

We have calculated the phonon dispersion and the electron-phonon interaction in palladium at ambient and under pressure using ab initio methods and evaluated superconducting transition temperature on the basis of the BCS theory. At ambient pressure, we have evaluated the electron-phonon coupling constant to be λ=0.377 by the use of the density-functional perturbation theory, and estimated the spin fluctuation effect in relation to the experimental data of specific heat. The vanishing of the superconducting transition at ambient pressure is resulted from the spin fluctuation effect. The spin fluctuation effect reduces with increasing pressure, and the superconductivity appears under pressure.

収録刊行物

• PHYSICAL REVIEW B

  PHYSICAL REVIEW B 71 (1), 012515-1-012515-4, 2005-01-31

  American Physical Society

詳細情報

• CRID: 1050282677891479296
• NII論文ID: 120005684227
• ISSN: 24699950
• ISSN: 24699969
• HANDLE: 10112/2204
• Web Site: https://kansai-u.repo.nii.ac.jp/records/11130
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
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  • CiNii Articles
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