Evolution of the fermi surface of BaFe2(As1-xPx)2 on entering the superconducting dome

H. Shishido, A. F. Bangura, A. I. Coldea, S. Tonegawa, K. Hashimoto, S. Kasahara, P. M.C. Rourke, H. Ikeda, T. Terashima, R. Settai, Y. Onuki, D. Vignolles, C. Proust, B. Vignolle, A. McCollam, Y. Matsuda, T. Shibauchi, A. Carrington

研究成果: Article査読

180 被引用数 (Scopus)

抄録

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 (Tc 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.

本文言語English
論文番号057008
ジャーナルPhysical review letters
104
5
DOI
出版ステータスPublished - 2010 2月 5
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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