Magnetic dipole rotational bands in odd-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>A</mml:mi></mml:math>Rb isotopes

Abstract

The hybrid version of tilted axis cranking has been used to study the existence of magnetic rotation in the $\ensuremath{\Delta}I=1$ bands of odd-$A$ ${}^{79,81,83,85}\mathrm{Rb}$ isotopes. The bands are found to be built on prolate three quasiparticle $\ensuremath{\pi}{(g}_{9/2})\ensuremath{\bigotimes}\ensuremath{\nu}[{g}_{9/2}{(\mathrm{fp})}^{1}]$ configuration. The results exhibit a rapid onset and decline of magnetic rotation as we go from $N=42$ to 48. The ${}^{83}\mathrm{Rb}$ appears to be a better case of magnetic rotation among these four Rb isotopes.