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著者
Sakakibara, H. Department of Engineering Science, The University of Electro-Communications 鳥取大学研究者総覧 KAKEN研究者をさがす
Suzuki, K. Department of Applied Physics, The University of Tokyo
Usui, H. Department of Physics, Osaka University
Kuroki, K. Department of Physics, Osaka University
Arita, R. Department of Applied Physics, The University of Tokyo / JST, PRESTO
Aoki, H. Department of Physics, The University of Tokyo
キーワード
cuprates
superconductivity
two-orbital model
band calculation
flucutuation exchange approximation(FLEX)
chemical pressure
抄録
Application of physical pressure on the cuprate superconductors often results in an enhancement of Tc. Motivated by this fact, we study the chemical pressure effect on the single-layered La2CuO4 and HgBa2CuO4 starting from the two-orbital Hubbard model deduced from a first-principles calculation. It is shown that the chemical pressure effects induced by La-site substitution in La2CuO4 or Hg-site substitution in HgBa2CuO4 are not expected to be effective for raising Tc.
出版者
Elsevier B.V.
資料タイプ
会議資料
外部リンク
ISSN・ISBN
18753892
掲載誌名
Physics Procedia
58
開始ページ
34
終了ページ
37
発行日
2014
出版者DOI
著者版フラグ
出版社版
著作権表記
© 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).
掲載情報
H. Sakakibara, K. Suzuki, H. Usui, K. Kuroki, R. Arita and H. Aoki. Theoretical study of the chemical pressure effect on Tc in the cuprate superconductors. Physics Procedia. 2014, 58, 34-37. 26th International Symposium on Superconductivity(ISS 2013)
部局名
工学部・工学研究科
言語
英語