Non-minimal derivative coupling in Palatini cosmology: Acceleration in chaotic inflation potential

NMDC-Palatini cosmology in slow-roll regime is of our interests. We present flat FLRW cosmological NMDC-Palatini field equations and acceleration condition. Late time trajectory is approximated. Chaotic inflation potential is considered here as it is viable in a range of negative coupling constant as constrained by CMB results. Phase portraits show that the NMDC-Palatini gives new saddle-point solutions. The NMDC-Palatini effect decreases the acceleration-allowed region and forbid acceleration at small-field values.