  We study the formation of stable bright solitons in quasi-one-dimensional
(quasi-1D) spin-orbit- (SO-) and Rabi-coupled two pseudospinor dipolar
Bose-Einstein condensates (BECs) of 164 Dy atoms in the presence of repulsive
contact interactions. As a result of the combined attraction-repulsion effect
of both interactions and the addition of SO and Rabi couplings, two kinds of
ground states in the form of self-trapped bright solitons can be formed, a
plane-wave soliton (PWS) and a stripe soliton (SS). These quasi-1D solitons
cannot exist in a condensate with purely repulsive contact interactions and SO
and Rabi couplings (no dipole). Neglecting the repulsive contact interactions,
our findings also show the possibility of creating PWSs and SSs. When the
strengths of the two interactions are close to each other, the SS develops an
oscillatory instability indicating a possibility of a breather solution,
eventually leading to its destruction. We also obtain a phase diagram showing
regions where the solution is a PWS or SS.
