Pressure tuning of Fermi surface topology of optimally doped BaFe${}_{1.9}$Ni${}_{0.1}$As${}_2$

Xiao-Jia Chen, Feng-Jiang Jia, Jian-Bo Zhang +8

The superconducting, transport, and structural properties of optimally electron-doped BaFe${}_{1.9}$Ni${}_{0.1}$As${}_2$ are investigated by combining the electrical resistance and syn…