2010年2月
Evolution of the Fermi Surface of BaFe2(As1-xPx)(2) on Entering the Superconducting Dome
PHYSICAL REVIEW LETTERS
- 巻
- 104
- 号
- 5
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevLett.104.057008
- 出版者・発行元
- AMER PHYSICAL SOC
Using the de Haas-van Alphen effect we have measured the evolution of the Fermi surface of BaFe2(As1-xPx)(2) as a function of isoelectric substitution (As/P) for 0.41 < x < 1 (T-c up to 25 K). We find that the volumes of electron and hole Fermi surfaces shrink linearly with decreasing x. This shrinking is accompanied by a strong increase in the quasiparticle effective mass as x is tuned toward the maximum Tc. These results are not explained by simple band structure calculations, and it is likely that these trends originate from the same many-body interactions which give rise to superconductivity.
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevLett.104.057008
- ISSN : 0031-9007
- Web of Science ID : WOS:000274336800044