論文

査読有り
2015年7月14日

Spin fluctuations and superconductivity in layered f -electron superlattices

Physical Review B - Condensed Matter and Materials Physics
  • Yasuhiro Tada
  • ,
  • Robert Peters

92
3
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevB.92.035129
出版者・発行元
American Physical Society

We investigate magnetic and superconducting properties of layered f-electron superlattices within the fluctuation exchange approximation (FLEX). We show that spin fluctuations, which are characterized by the maximum value of the spin susceptibility in the three-dimensional (3D) Brillouin zone, are strongly suppressed in f-electron superlattices. However, effective 2D spin fluctuations can be increased due to the spatial confinement of the f electrons. Therefore the tendency towards dx2-y2-wave superconductivity, mediated by these spin fluctuations, can be strongly increased in f-electron superlattices. This is in sharp contrast to superlattices composed of conventional s-wave superconductors, where superconductivity is generally suppressed.

リンク情報
DOI
https://doi.org/10.1103/PhysRevB.92.035129
ID情報
  • DOI : 10.1103/PhysRevB.92.035129
  • ISSN : 1550-235X
  • ISSN : 1098-0121
  • SCOPUS ID : 84937843117

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