Bookmark 5 & 14. Motion of the electron in a uniform magnetic field along the OZ axis of intensity = T.
The CM has a cyclotron motion and the spin precesses backwards with Larmor angular velocity: in one complete turn of the CM in the cyclotron motion, the spin has only precessed half a turn and in the opposite direction to the cyclotron motion (the final red spin vector ends up opposite to the initial black spin vector).
In Bookmark 14 we see the same behaviour with a different spin orientation.
B
z
8
10
The CM has a cyclotron motion and the spin precesses backwards with Larmor angular velocity: in one complete turn of the CM in the cyclotron motion, the spin has only precessed half a turn and in the opposite direction to the cyclotron motion (the final red spin vector ends up opposite to the initial black spin vector).
In Bookmark 14 we see the same behaviour with a different spin orientation.