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Evolution of the Fermi surface of BaFe_2(As_{1-x}P_x)_2 on entering the superconducting dome
- Source :
- Phys. Rev. Lett. 104, 057008 (2010)
- Publication Year :
- 2009
-
Abstract
- Using the de Haas-van Alphen effect we have measured the evolution of the Fermi surface of BaFe_2(As_{1-x}P_x)_2 as function of isoelectric substitution (As/P) for 0.41<x<1 (T_c up to 25 K). We find that the volume 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 T_c. It is likely that these trends originate from the many-body interaction which give rise to superconductivity, rather than the underlying one-electron bandstructure.<br />Comment: 4 pages
- Subjects :
- Condensed Matter - Superconductivity
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 104, 057008 (2010)
- Publication Type :
- Report
- Accession number :
- edsarx.0910.3634
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.104.057008