High spin states of ${}^{134}\mathrm{Ce}$ have been studied using an array of 8 Compton suppressed clover detectors and a multiplicity filter consisting of $14\text{NaI}\left(\mathrm{T}1\right)$ detectors. Two new $\Delta I=1$ bands $B4$ and $B5$ with strong intraband magnetic dipole transitions have been established. The crossover $E2$ transitions have been observed in the $B4$ band and lifetimes of levels, both in $B4$ and $B5$ bands, have been measured using the Doppler shift attenuation method. The measured $B\left(M1\right)$ values are large for the $B4$ band, yet the measured $B\left(M1\right)∕B\left(E2\right)$ ratios are nearly constant with increasing frequency and do not support the magnetic rotation character. The $B4$ band also exhibits a small gain in alignment at a higher frequency suggesting an upbending and a band crossing. These features are sought to be explained in terms of two closely lying configurations $A:\pi {\left(g_{7∕2}\right)}^2\otimes \nu \left(h_{11∕2}{d}_{3∕2}\right)$ and $B:\pi {\left(h_{11∕2}\right)}^2\otimes \nu \left(h_{11∕2}{d}_{3∕2}\right)$, which have a small and a moderate deformation, respectively. The tilted axis cranking (TAC) calculations suggest that configuration $B$ crosses the configuration $A$ with a small alignment gain and mixing between the two may explain the observed features. The measured $B\left(M1\right)$ values deduced from the lifetimes for the $B5$ band show a decrease with increasing spin which is a characteristic feature of magnetic rotation bands. The results of the TAC calculations explain the $B5$ band very well by using the four-quasiparticle configuration $\pi \left(g_{7∕2}{h}_{11∕2}\right)\otimes \nu \left(h_{11∕2}^{-2}\right)$ and establish it as a magnetic rotational band.

The ${}^{122}\mathrm{Sn}({}^{11}\mathrm{B},4n)$ fusion-evaporation reaction at $E_{\mathrm{lab}}=60$ MeV was used to populate excited states in ${}^{129}\mathrm{Cs}$, and the deexcitations were investigated using in-beam $\gamma$-ray spectroscopic techniques. The level scheme of ${}^{129}\mathrm{Cs}$ is established up to ∼8 MeV excitation energy and 47/2 ħ spin. The observed band structures are interpreted for their configurations in the framework of cranking model calculations and systematic of the neighboring ${}_{55}$Cs isotopes. A negative-parity $\Delta I=1$ coupled band has been assigned the $\pi h_{11/2}\otimes \nu (h_{11/2}){}^2$ configuration as solution of the tilted-axis cranking, which coexists with the $\pi h_{11/2}$ yrast band resulting from the principal-axis cranking. A new band has been identified as a $\gamma$-vibrational band built on the $\pi h_{11/2}$ orbital. A pair of strongly coupled positive-parity bands exhibiting similar features have been assigned different unpaired three-quasiparticle configurations involving the $\pi h_{11/2}\otimes \nu h_{11/2}$ component. The previously identified unfavored signature partners of the $\pi d_{5/2}$ and $\pi g_{7/2}$ bands are reassigned as $\gamma$ vibrations of the core coupled to the $\pi g_{7/2}$ single-particle configuration, and the favored signature of the $\pi d_{5/2}$ band, respectively.

Excited states of ${}_{56}^{135}{\mathrm{Ba}}_{79}$ at high spins are studied using the reaction ${}^{130}\mathrm{Te}$(${}^9\mathrm{Be}$,$4n$)${}_{56}^{135}{\mathrm{Ba}}_{79}$ at $42.5$-MeV beam energy. The earlier known level scheme is extended up to $6.4$-MeV excitation energy and ($37/2$)$\hslash$ spin with the addition of several transitions. We have performed polarization asymmetry measurements for some of the strong transitions by using a Clover detector to assign the parity. A comparison of experimental data with the results of tilted axis cranking calculations based on various configurations indicates the coexistence of multiple minima in the triaxial deformation ($\gamma$), whereas axial symmetric deformation (${\epsilon }_2$) remains constant around $0.09$.