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. Ōnuki, D. Vignolles, C. Proust, B. Vignolle, A. McCollam, Y. Matsuda, T. Shibauchi, A. Carrington
DOI 10.1103/PhysRevLett.104.057008 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| BaFe2(As1-xPx)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 25 | Pressure not reported | unknown |
| BaFe2(As1-xPx)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30 | Pressure not reported | unknown |
| LaFePO Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6 | Pressure not reported | unknown |
Similar papers
Structural and Magnetic Phase Transitions near Optimal Superconductivity in BaFe2(As1−xPx)2
similarity 0.96Ding Hu et al.
Source status unknown — claims are unverified
Local characterization of superconductivity in BaFe2(As1−xPx)2
similarity 0.96Y. Lamhot et al.
Source status unknown — claims are unverified
Robust Nodal Superconductivity Induced by Isovalent Doping in Ba(Fe1−xRux)2As2 and BaFe2(As1−xPx)2
similarity 0.96X. Qiu et al.
Source status unknown — claims are unverified
Nodal gap structure of superconducting BaFe2(As1−xPx)2 from angle-resolved thermal conductivity in a magnetic field
similarity 0.96M. Yamashita et al.
Source status unknown — claims are unverified
22 K superconductivity in BaFe2As2 exposed to F2
similarity 0.96G. N. Tam et al.
Source status unknown — claims are unverified
Evidence for superconducting gap nodes in the zone-centered hole bands of KFe2As2 from magnetic penetration-depth measurements
similarity 0.95K. Hashimoto et al.
Source status unknown — claims are unverified