Rotational alignment of the $\mth{h_{11/2}}$ band in $\chem{^{157}Dy}$

High-spin states of $^{157}$Dy were investigated using in-beam $\gamma$-ray spectroscopy techniques with a $^{150}$Nd($^{12}$C, 5n) reaction. Three rotational bands with the $h_{9/2}$, $i_{13/2}$ and $h_{11/2}$ configurations were observed up to (43/2$^-$), 53/2$^+$ and 45/2$^-$, respectively. Interband $M1$ transitions in the $h_{11/2}$ (high-${\Omega}$) band were also measured up to the highest-spin state. The high-spin states were well reproduced by calculations using the tilted-axis-cranking model (TAC). The $B(M1)/B(E2)$ ratio, Routhian and the tilted angle of the angular-momentum vector are found to be in good agreement with the result of the TAC calculation