Electronic Structure of \mathrm{Sr}_{1-y}\mathrm{Ca}_{y}\mathrm{Fe_{2}}(\mathrm{As}_{1-x}\mathrm{P}_{x}\mathrm{)_{2}} (x = 0.25, y = 0.08) Revealed by Angle-Resolved Photoemission Spectroscopy

We have investigated the electronic structure of \mathrm{Sr}_{1-y}\mathrm{Ca}_{y}\mathrm{Fe_{2}}(\mathrm{As}_{1-x}\mathrm{P}_{x}\mathrm{)_{2}} (x = 0.25, y = 0.08) by means of angle-resolved photoemission spectroscopy. From the comparison with the results of \mathrm{BaFe_{2}}(\mathrm{As}_{1-x}\mathrm{P}_{x}\mathrm{)_{2}}, the effects of smaller structural anisotropy (c/a) on the Fermi surfaces (FSs) and the gap structures are discussed. The observed FSs have... Show more